Redacted - GOV.UK · Airworthiness tasks; a separate Sub Part C approval is not required. References in Continuing Airworthiness Management Expositions may need updating, but are

Ref No: MAA/NPA/17/20

MAA NPA Form Revised May 17

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NOTICE OF PROPOSED AMENDMENT: MAA/NPA/17/20

TITLE OF PROPOSAL:

Continuing Airworthiness Engineering (CAE) 4000 Series and Manual of Maintenance and Airworthiness Processes (MAP-01) Review Tranche 3

Stage of Development:

Final Proposal - Notice of Proposed Amendment (NPA)

Organizations and business sectors affected:

All Maintenance Organizations (MOs) and Military Continuing Airworthiness Management Organizations (Mil CAMOs) across the Defence Air Environment (DAE).

MAA-NPA Serial No: MAA/NPA/17/20

RFC Serial No: MAA_RFC_2016_019 MAA_RFC_2016_041 MAA_RFC_2016_163 MAA_RFC_2017_019 MAA_RFC_2017_033

MAA Originator:

DSA-MAA-Reg-CAw1-Dev DSA-MAA-Reg-CAw3-CAM

Redacted

Redacted

Date: 26/07/2017

MAA Supervisor: DSA-MAA-Reg-CAw

Redacted Date: 27/07/2017

MAA Independent: DSA-MAA-OA-DepHd2

Redacted Date: 31/07/2017

MAA LegAd (if required):

N/A N/A Date: N/A

MRPT Point of Contact details

Rank and Name: MAA Regulatory Publications Team Enquiries

Telephone Number mil/civ:

9679 - 84189 / 83914 / 82504 030 679 - 84189 / 83914 / 82504

Email address:

Due to our impending move to a new IT System, our email address will change as follows:

Pre-14 Jun 17 - [email protected] Post-14 Jun 17 - [email protected]

Cross-reference to other relevant amendment proposals or documents:

RA 1223 – Airworthiness Information Systems (AIS)



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Feedback Notes The Regulated Community are invited to offer feedback (where applicable) on the impact of the proposed change to publications covered under this NPA on the operation of your business, including:

Timescale for implementation.

Cost of implementation.

Amendment to contract.

Amendment to internal processes/orders.

Resourcing the outcome of change.

The format for feedback is illustrated at Annex A and is available within a single Excel file on both internal and external MAA websites.

SUMMARY OF PROPOSED AMENDMENT Change: Background The aims of the CAE 4000 Series and MAP-01 review have been previously set out in Regulatory Notice (RN) MAA/RN/2016/05; this NPA notifies the Regulated Community of the changes proposed for Tranche 3 of that review. The content of the MAP-01 assessed as Acceptable Means of Compliance (AMC) or Guidance Material (GM) for MOs and Mil CAMOs has been written into MAA Regulatory Publications (MRP) Part 145 and MRP Part M respectively. MRP Part M There is a change in the structure of the MRP Part M Regulation. Elements of extant Regulation will be regrouped under the Sub Part heading “MRP Part M Sub Part C – Continuing Airworthiness (RA 4961-4964)”. This change aligns MRP Part M more closely with European Military Airworthiness Requirements (EMAR) M. These Regulations directly support RA 4947 – Continuing Airworthiness Management, which will be amended and refer to Sub Part C for Continuing Airworthiness tasks; a separate Sub Part C approval is not required. References in Continuing Airworthiness Management Expositions may need updating, but are not considered to be a significant change in accordance with RA 4943 – Continuing Airworthiness Management Exposition (CAME). However, any changes in working practice must comply with AMC paragraph 8 of RA 4943. Additionally, RA 4964 – Continuing Airworthiness Management Records completely subsumes RA 4953 – Record Keeping, which will be withdrawn as part of this proposal. There is one minor change to the content of MRP Part M: Mil CAMOs are required to ensure there is a declaration that an Air System has no outstanding maintenance prior to flight. For MOs using MOD Form 700 documents as the Technical Log, this requirement is met through the completion of the MOD Form 705 as currently detailed in the MAP-01.



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RA 4964 – Continuing Airworthiness Management Records dependency on RA 1223 –Airworthiness Information Systems (AIS): This NPA refers to RA 1223 – Airworthiness Information Systems (AIS), which is an entirely new Regulatory Article being produced in parallel with the Tranche 3 amendments. AIS is a term which encompasses the complete system for managing the Continuing Airworthiness information associated with a platform; it is a broader term than Logistics Information System (LIS). The AIS for current in-Service platforms typically includes paper-based elements (usually the MOD F700) and software elements (eg GOLDesp and LITS) as well as supporting processes and practices. RA 1223 brings together existing Regulation and good practice for LIS and Military Air Engineering Documentation (MAED) to provide a more coherent Regulatory framework that better supports the design, acquisition and through-life management of AIS. It will supersede RA 4303 – Logistics Information Systems, RA 4305 – Electronic Documentation of Aircraft Maintenance and RA 4306 – Management of Arisings within a Ground Maintenance System. While RA 1223 is yet to be released externally as a NPA, it is expected that it will be published as a NPA before the amendments proposed for Tranche 3 have been published by a Notice of Authorized Amendment. MRP Part 145 Within MRP Part 145, whilst undertaking Tranche 3 amendments opportunity has been taken to:

Change the Rationale of those RAs to align with a Context, Hazard, Defence structure.

Update terminology (mainly concerning the term Aircraft to become Air System(s)).

Consistently apply the term MRP Part 145.

Incorporate Requests For Change (RFC).

Make referencing to other Regulations coherent in order to remove clutter in the RAs. The following amendments are expected to be of particular interest to the Regulated Community: RA 4800 – General Requirements (MRP Part 145): Greater clarity has been provided with regards to the use of the CAP 562 Leaflet B-40 release statement, when Military Registered Civil-Owned Air Systems temporarily operate outside Civil Aviation Authority oversight. RA 4801 – General Definitions (MRP 145.A.01): Updated GM to detail the signatories used on MOD Form 700 documentation and the use of UK military terms, such as Self-Supervisor, throughout MRP Part 145. RA 4806 – Personnel Requirements (MRP 145.A.30): RA 4806(5) – Personnel Competences and Authorization (MRP 145.A.30(e)) has been amended to provide a more appropriate link to RA 1440 – Air Safety Training, for Human Factors training requirements. RA 4806(5) has also incorporated GM for the maintenance of Electrical Wiring and Interconnection Systems, which has been taken from RA 4815(2) – Procedures for Good Maintenance Practices (MRP 145.A.65(b)). The title of RA 4806(6) – Non-Destructive Testing (MRP 145.A.30(f)) has been changed to “Specialized Services” along with clearer Regulation, AMC and GM for Non-Destructive Testing in order to align more closely with EMAR 145. RA 4808 – Equipment Tools and Material (MRP 145.A.40): Regulation titled “Accounting of Equipment, Tools and Materials” with associated AMC and GM has been added. The revised Regulation requires additional control of equipment, tools and materials within a MO. RA 4809 – Acceptance of Components (MRP 145.A.42): Annex A to this Regulation, specifically Table A-1 Box 8 (completion notes column), has been amended to permit the use of NATO Stock Numbers on the UK MAA Form 1, in response to a RFC.



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RA 4810 – Technical Information (MRP 145.A.45): Amended to provide greater clarity on applicable Technical Information to be used by a MO.

Impact Assessment: There should be no significant impact on the Regulated Community as a result of this proposed change. However, elements of the MAP-01 are currently not assigned to a specific organization and these amendments to the MRP assign responsibility to either the Mil CAMO or MO. Changes to expositions or orders may be required to ensure that organizations have the correct responsibility assigned.

Objective: To regulate elements of the MAP-01 that are required to ensure the Continuing Airworthiness of Air Systems in the DAE.

Courses of Action - Risk Evaluation.

Do nothing:

This option will result in elements of the MAP-01 retaining Regulatory status, whilst also providing solutions to achieve compliance. The MAA would not be able to permit co-sponsorship of the MAP-01 with the Commands and the MAP-01 would not become a document purely for shop floor maintainers that ensures compliance with the overarching Regulatory requirements. The absence of assigned responsibility for key Airworthiness requirements currently found in the MAP-01, could adversely affect the Airworthiness of Air Systems within the DAE.

Partial amendment:

There is no practical way to achieve a partial amendment.

Full amendment:

This option will ensure that actions required to ensure the Continuing Airworthiness of an Air System are regulated and those personnel/organizations responsible for satisfying them are identified in the Regulations. References to the MAP-01 will be removed from Continuing Airworthiness Regulation entirely, allowing the subsequent review of the MAP-01 to correctly indicate the processes that are ensuring compliance with the MRP. Subject to the remaining phases of the CAE 4000 Series Regulation and MAP-01 review being completed successfully, the MAP-01 can then become a Continuing Airworthiness process manual, co-sponsored by the Commands and MAA.

Post Implementation Review: N/A



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Consultation period ends: 22 Sep 17

The consultation period for this proposed amendment ends on the stated date. Please send your feedback, using the Response Form, via email to [email protected].

APPROVAL

Approved by:

(IAW MAA SOP 20 Matrix)

Post Name Rank

DSA-MAA-Reg-DepHd

Redacted

Redacted

Original, non-redacted, signed

{Please Annotate with NPA Reference Number} Annex A to

MAA NPA Form Revised Jan 17

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NOTICE OF PROPOSED AMENDMENT RESPONSE SHEET Respondent details:

Organization Name Contact Number: Email Address:

Comments:

RA No./ Manual

Chapter & Para No. Comment Proposed Amendment

Impact assessment:

RA No./ Manual

Chapter & Para No. Impact assessment

UNCONTROLLED COPY WHEN PRINTED Regulatory Article 4800

RA 4800 Draft for NPA UNCONTROLLED COPY WHEN PRINTED Page 1 of 10

RA 4800 – General Requirements (MRP Part 145)

Rationale ► MRP Part 145 consists of discrete Regulatory Articles (RAs)1 that govern

Maintenance Organizations (MOs). RA 4800 outlines the fundamental requirements for MOs and where they apply to the Maintenance Approved Organization Scheme (MAOS). Contracting with an MO without an assessment of the MO’s competence could lead to maintenance errors and increased Risk to Life (RtL). An organization’s achievement of the outcomes expressed in MRP Part 145 demonstrates a level of competence that reduces the possibility of systemic maintenance errors and contributes towards Aviation Duty Holder and Accountable Manager (Military Flying) assurance of the Airworthiness of military registered Air Systems and components.◄

Contents 4800(1): General Requirements (MRP Part 145)

Regulation

4800(1) General Requirements (MRP Part 145)

4800(1) On-aircraft maintenance, and off-aircraft maintenance that is carried out on UK Government property, shall only be carried out by organizations whose management, technical resources and quality assurance arrangements are demonstrably adequate to provide products and services of the required quality, economically and on time.

Acceptable Means of Compliance

4800(1)

General Requirements (MRP Part 145)

1. A contractor-run organization should ►apply◄ for the issue or continuation of an approval for the maintenance of military ►registered Air Systems or Air System◄ components through the Maintenance Approved Organization Scheme (MAOS), in accordance with ►MRP Part 145◄ or, where applicable, the MRP Part 145 Supplement - Requirements Document (S-RD) ►at Annex A◄.

2. A military-run organization does not require a MAOS approval to maintain military ►registered Air Systems◄ or ►Air System◄ components, but its compliance with the relevant parts of ►MRP Part 145◄ should be assured under single-Service arrangements. In addition, some 3rd party assurance activity will be conducted by the MAA as part of existing audit arrangements.

Guidance Material

4800(1)

General Requirements (MRP Part 145)

3. ►MRP Part 145◄ must be read in conjunction with this document. Furthermore, this RA must be read in association with RA 1005►2◄.

4. ►MRP Part 145◄ establishes the requirements to be met by a contractor-run organization to qualify for the issue or continuation of an approval for the maintenance of military ►registered Air Systems or Air System◄ components. ►MRP Part 145◄ is based on the framework published in ►European Military Airworthiness Requirement (EMAR)◄ 145 and its associated ►Acceptable Means of Compliance (AMC) and Guidance Material (GM)◄. In addition, the ►MRP Part 145◄ has broader applicability, as defined below.

5. While ►MRP Part 145◄ forms the requirements to be met by a contractor-run ►MO◄ to qualify for the issue or continuation of an MAA approval through MAOS, it does not negate the requirement for such an organization to adhere to other applicable Regulations (as contracted) within the MRP. Each RA must be considered for applicability. Such Regulations include, but are not limited to, those in the GEN 1000 ►Series3◄. The AMC for ►◄ these ►Regulations may◄ refer to Military Maintenance Organization (MMO) specific terms►;◄ Approved Maintenance

1 ►Refer to RA 4800-4849. 2 RA 1005 – Contracting with Competent Organizations 3 For example, RA 1200 – Defence Air Safety Management.◄

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Regulatory Article 4800 UNCONTROLLED COPY WHEN PRINTED

Page 2 of 10 UNCONTROLLED COPY WHEN PRINTED RA 4800 Draft for NPA

Guidance Material

4800(1)

Organization (AMO) specific equivalent terms may be used instead but the AMO’s means of meeting the regulation must be demonstrably no less safe than the requirements of the AMC and must be detailed in the organization’s Maintenance Organization Exposition (MOE).

6. As an alternative to direct compliance with ►MRP Part 145◄ as a whole, a contractor-run ►MO◄ holding an applicable European Aviation Safety Agency (EASA) Part 145 approval may apply for an MAA approval through the process detailed in the MRP Part 145 S►-◄RD. This document may only be used, however, by those organizations meeting the qualifying criteria and conditions contained within this document, and when agreed by the MAA. ►◄

7. For the purposes of ►MRP Part 145◄, “on UK Government property” means on UK Government land, Royal Navy or Royal Fleet Auxiliary ships.

Warning

8. The ►◄ MOD, like its contractors, is subject to both United Kingdom and European laws regarding Health and Safety at Work. All Defence Standards and ►RAs◄ either directly or indirectly invoke the use of processes and procedures that could be injurious to health if adequate precautions are not taken. Continuing Airworthiness Engineering ►◄ 4000 ►RAs◄ or their use in no way absolves users from complying with statutory and legal requirements►4◄ relating to Health and Safety at Work.

Applicability and Definitions

9. ►MRP Part 145◄ provides the ►Regulation◄ to be met by contractor-run ►MOs◄ to qualify for the approval required by this ►Regulation◄ and RA 1005►2◄. Organizations obtaining such approval will be referred to throughout ►MRP Part 145◄ as AMO.

10. ►MRP Part 145◄ also forms part of the wider ►Continuing Airworthiness Engineering◄ 4000 ►RAs◄ that govern Continuing Airworthiness activity. As such, these ►Regulations◄ have applicability to military-run ►Air System◄ and ►Air System◄ component ►MOs◄; these organizations will be referred to throughout ►MRP Part 145◄ as MMO. Notwithstanding this dual applicability, there is currently no requirement for MMOs to obtain approval to conduct ►Air System or Air System◄ component maintenance from the MAA; suitable exemption to this effect is contained in the relevant individual ►Regulations◄, summarized below in Table 1.

Table 1. ►MRP Part 145◄ Applicability

MMO Applicability AMO Applicability

RA 4800-4801 Yes Yes

RA 4802-4804 No Yes

RA 4805-4815 Yes Yes

RA 4816 No Yes

RA 4817 Yes Yes

RA 4818-4821 No Yes

11. The scale of an MMO may differ between ►MOs◄ depending on the organizational construct within which it is located. MMOs may conduct maintenance in the Forward domain, the Depth domain, or both, and it is possible that several MMOs may be located at the same Unit or MOD site.

12. Work undertaken in support of defined maintenance packages and/or modification programmes at an MMO where such work is not undertaken under its control5 ►◄would be regarded as “contractor-run” maintenance and hence an

4 ►Refer to DSA 01.1 – Defence Policy for Health, Safety and Environmental Protection.◄ 5 The phrase “not undertaken under its control” is meant as those activities not undertaken as part of manpower substitution activity for which the ►Accountable Manager (Maintenance) (AM(M))◄ retains the power to authorize personnel as certifying or support staff. Examples are modification programmes or scheduled maintenance packages ►undertaken by a Contractor Working Party.◄

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Guidance Material

4800(1)

organization undertaking such work will require approval under ►MRP Part 145◄ and be considered as a separate AMO.

13. In order to facilitate the dual applicability, a number of RAs within ►MRP Part 145◄ detail AMC and/or GM that is applicable to either MMOs only, AMOs only, or both. Therefore, where necessary, AMC/GM has been split under the following 3 headings: ‘Common AMC/GM’, ‘Additional AMC/GM - MMOs only’ and ‘Additional AMC/GM - AMOs only’. Paragraphs located under the heading ‘Common AMC’ are applicable to both MMOs and AMOs and must be complied with by both; paragraphs located under the headings ‘Additional AMC - MMOs/AMOs only’ must be complied with, in addition to any AMC detailed under the ‘Common AMC’ heading, by an MMO or AMO respectively. It is not permissible for AMOs to follow the ‘MMOs only’ AMC in lieu of the AMO-only AMC, or vice-versa, without specific approval from the MAA to do so. Where no such headings exist, the entire AMC/GM relating to that sub-RA is applicable to both MMOs and AMOs.

Terminology

Due to its provenance from EMAR 145 (which itself was derived from the civilian EASA Part 145), much of the terminology used throughout ►MRP Part 145◄ mirrors that used in civilian aviation (eg ‘certifying staff’). There is, however, no intention for such terms to replace their commonly understood military equivalents, but are used in ►MRP Part 145◄ as a means to provide a common Regulatory framework for all ►MOs◄.

Application for MAOS MRP Part 145 Approval

14. An organization seeking MAOS approval must apply in the first instance to the MAA, by email to ►[email protected] ◄.

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mailto:[email protected]



ANNEX A TO RA 4800

MRP PART 145 SUPPLEMENT - REQUIREMENTS DOCUMENT (S-RD) 1. This document details a simplified process for ►an MO◄ approved in accordance with (iaw) the European Commission Regulation (EC) No 2042/2003 Annex II, EASA Part 145 (hereinafter referred to as EASA Part 145) to qualify for an approval iaw ►MRP Part 145◄ under ►MAOS◄. An MRP Part 145 approval issued through the method detailed in this document is ►◄ an alternative to the organization demonstrating compliance with ►MRP Part 145◄ as a whole; its use will be limited to those organizations who meet the qualifying criteria and conditions set out in Section 1 below.

2. The MAA has assessed the requirements of EASA Part 145 against those of MRP Part 145 and established the substantial degree to which MRP Part 145 compliance can be demonstrated by virtue of holding a current EASA Part 145 approval of an applicable scope. However, where the MRP Part 145 contains requirements that may not be met by the organization through its EASA Part 145 approval, demonstration of compliance will be necessary in order to gain an MRP Part 145 approval; these additional requirements are detailed in Section 2 of this document. Therefore, subject to meeting the qualifying criteria and conditions in Section 1, ►an MO◄ approved by the UK ►Civil Aviation Authority (CAA)◄ under EASA Part 145 may apply for the issue of an MRP Part 145 approval by submitting an MRP Part 145 Supplement (hereinafter referred to as the ‘Supplement’) that details how these additional requirements are met. Hence, the organization is not required to duplicate effort in re-justifying how it meets the requirements common with EASA Part 145.

3. ►The◄ MRP is applicable6 to ►Continuing Airworthiness Engineering◄ activities associated with ►Air Systems◄ on the UK Military Aircraft Register. Therefore, while the MAA’s acceptance of an organization’s Supplement will provide an exemption from the need to comply with ►MRP Part 145◄ as a whole, it does not remove the need for an organization to comply with any other applicable areas of the MRP.

SECTION 1 - QUALIFYING CRITERIA AND CONDITIONS

4. An organization may use the process in this document to apply for an MRP Part 145 approval subject to meeting the following criteria:

a. The organization ►should◄ demonstrate the need for an MRP Part 145 approval (eg a contracted requirement to maintain UK military registered ►Air Systems◄).

b. The organization ►should◄ hold a valid EASA Part 145 approval certificate, issued by the CAA iaw the current EASA Part 145, covering all applicable approval classes and ratings, and at the locations that require an MRP Part 145 approval.

c. The organization ►should◄ meet the conditions of CAP 562 - Book 1, Chapter B, Leaflet B-407 (hereinafter referred to as Leaflet B-40). ►◄

(1) ►◄

(2) ►◄

(3) ►◄

5. Prior to submission of the Supplement, the organization ►should◄ confirm that it is content to comply with all of the following requirements to:

a. Allow the MAA to inspect the organization for initial and continued compliance with procedures and standards relating to the maintenance of military registered ►Air Systems◄ and to investigate specific problems8.

b. Cooperate with the relevant ►Military◄ Continuing Airworthiness Manager (►Mil◄ CAM), and his authorized representatives, in order that he can discharge his responsibilities for the ►Continuing Airworthiness◄ of relevant military registered ►Air Systems◄ iaw the RA 4900 series (MRP Part M). While the ►Mil◄ CAM may rely on the EASA Part M ►Sub Part◄ G organization to undertake much of the Continuing Airworthiness management activity on his behalf, the ►MO should◄ permit the ►Mil◄ CAM (and his authorized representatives) full access to those areas of the organization involved in the maintenance of military registered ►Air Systems◄, when deemed necessary by the ►Mil◄ CAM.

6 MAA01 - Military Aviation Authority Regulatory Policy. 7 ►CAP 562 – Civil Aircraft Airworthiness Information and Procedures (CAAIP).◄ 8 While the principle of this document is that the MAA will utilize the evidence of the EASA Part 145 approval to confirm compliance with elements of MRP Part 145, the MAA will retain the right to inspect the organization if deemed necessary.

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https://www.gov.uk/government/publications/maa01-military-aviation-authority-maa-regulatory-policy

https://www.caa.co.uk/cap562



c. Cooperate with the relevant MOD Type Airworthiness Authority (TAA), and his authorized representatives, in order that ►they◄ can effectively manage the ►Type Airworthiness◄9 of relevant military registered ►Air Systems◄.

d. Accept that investigation and enforcement action10 may be taken by the MAA iaw the ►Regulations◄ and procedures contained within the MRP.

e. Cooperate with any MAA investigation or enforcement action.

6. Notwithstanding the qualifying criteria and conditions detailed here, the MAA may, in exceptional circumstances, require ►an MO◄ to submit a full MRP Part 145 Maintenance Organization Exposition, iaw ►MRP Part 145◄, before an MRP Part 145 approval is granted. This is detailed further in Appendix 1.

SECTION 2 - ADDITIONAL REQUIREMENTS APPLICABLE TO MAINTENANCE ORGANIZATIONS APPROVED UNDER EASA PART 145

General requirements

7. The MAA agrees that ►an MO◄ that meets the qualification criteria and conditions of Section 1 will be eligible for an MRP Part 145 approval once the MAA is satisfied that the requirements of this document have been met. To achieve this approval, the organization ►should◄ complete a Supplement and submit it to the MAA iaw Appendix 1.

8. Since an MRP Part 145 approval granted in this manner is largely based on the EASA Part 145 approval held, the current ►approved,◄ EASA Part 145 Maintenance Organization Exposition ►should◄ be submitted to the MAA11 together with the completed Supplement, iaw Appendix 1. However, where the procedures detailed within the Exposition are deviated from or expanded when used on military registered ►Air Systems◄ and its components, the Supplement must highlight this and the revised procedures ►should◄ be detailed. Similarly, where the EASA Part 145 Maintenance Organization Exposition details Alternative Means of Compliance to EASA Part 145, then this ►should◄ also be highlighted.

9. Where content required in the Supplement is contained within the ►approved◄ EASA Part 145 Maintenance Organization Exposition, it is not necessary to reproduce the content. Rather, the content ►should◄ be identified in the Supplement by referencing the corresponding part of the Exposition.

10. Likewise, where the Supplement requirement is not applicable to the organization’s scope of work (eg where the ►Air System◄ being maintained does not have ‘military role equipment’ fitted), a statement to that effect should be included in the relevant section of the Supplement.

11. The MRP Part 145 approval will not exceed the scope of the ratings and limitations contained in the EASA Part 145 approval certificate.

12. The Supplement ►should◄ detail the locations at which the MRP Part 145 approval will be exercised.

13. The Supplement ►should◄ be amended as necessary to remain an up-to-date description of the organization. The organization should specify a process for submitting amendments in their Supplement and identify who within the organization is responsible for amendment action. The Supplement and any subsequent amendment ►should◄ be approved by the MAA, unless such amendment is deemed a ‘minor amendment’, as follows:

a. The process for incorporating minor amendments ►should◄ be detailed in the Supplement.

b. The process for minor amendments, if required, ►should◄ define the type of amendments to which it may be applied12. This may be aligned with the type of amendments deemed a minor amendment in the EASA Part 145 Exposition►13◄.

14. An organization approved under MRP Part 145 ►is◄ subject to the privileges and limitations detailed in ►the applicable Regulations◄14 with respect to the maintenance of UK military registered ►Air Systems◄.

9 ►Refer to◄ RA 1015 – Type Airworthiness Authority (TAA) – ►Roles and Responsibilities◄. 10 ►The MAA’s◄ enforcement policy is detailed in ►MAA01: MAA Regulatory Policy◄. 11 If necessary, the Exposition may be redacted to remove any elements that do not relate to the maintenance of military registered ►Air Systems◄. 12 Examples of minor amendments may include: correcting typographical errors; renumbering of procedures, provided that the intent of the procedure has not changed; editorial changes to procedures, provided that the intent of the procedure has not changed; and changes to named individuals within procedures, excluding those individuals that are required to hold an EASA Form 4. 13 ►Refer to EASA Part 145.A.70(c) – Maintenance organisation exposition.◄

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Personnel requirements

15. The Supplement ►should◄ contain a statement by the Accountable Manager of the organization, who should be the same individual nominated iaw EASA Part 145.A.30(a), which commits the organization to compliance with EASA Part 145 and the conditions and requirements of this ►Annex◄ whilst operating under their MRP Part 145 approval. This should include recognition of the consequences of failing to meet these requirements.

a. The statement by the Accountable Manager ►should◄ embrace the intent of the following statement, which may be used without amendment but any modification ►should not◄ alter the intent:

The EASA Part 145 Exposition, MRP Part 145 Supplement and any associated referenced manuals defines the organization and procedures upon which the MRP Part 145 approval is based, as required by the MAA Part 145 Supplement - Requirements Document. These procedures are approved by the undersigned and should be complied with, as applicable, when work/orders are being progressed under the terms of the MRP Part 145 approval.

It is accepted that these procedures do not override the necessity of complying with any new or amended Regulation/instruction published by the MAA, EASA or the CAA from time to time where these new or amended Regulations/instructions are in conflict with the procedures contained within this Supplement and the EASA Part 145 Exposition.

It is understood that the MAA will approve this organization whilst the MAA is satisfied that the procedures are being followed and work standards maintained and that this organization retains its EASA Part 145 approval certificate for the corresponding approval class and ratings. It is further understood that the MAA reserves the right to suspend, limit or revoke the approval of the organization if the MAA believes that procedures are not being followed or standards are not being upheld.

Signed……………………………………….

Name......[print name in block capitals]…..

Dated………………………………………..

Accountable Manager and ………………….[quote position]…………..……

For and on behalf of…………………..[quote organization’s name]………...

b. Whenever the Accountable Manager changes, the new Accountable Manager should sign the statement detailed above (or alternative) at the earliest opportunity. Failure to carry out this action could invalidate the MRP Part 145 approval.

16. The organization ►should◄ identify the person or group of persons responsible for the organization’s compliance with this document15. Such person(s) ►should◄ ultimately be responsible to the Accountable Manager. These should be the relevant individuals nominated iaw EASA 145.A.30(b) and the nominated individuals should have a working knowledge of the relevant parts of the MRP, including this document.

17. The organization ►should◄ ensure that certifying staff and support staff have an adequate understanding of the contents of the Supplement. In the case of certifying staff, this ►should◄ be accomplished before the issue or re-issue of the certification authorization.

Release statement

18. The Supplement ►should◄ contain the procedure for the Certification of ►Air System Release◄ (also known as the ‘release to service’) of a military registered ►Air System◄, which meets ►MRP◄ requirements►16◄, noting the following:

a. The detailed procedure should contain the release statement that will be used. Organizations completing a Supplement (and hence meeting the qualifying conditions and criteria of Section 1) may use an alternative release statement to that ►required16◄, provided that:

14 ►Refer to RA 4817 - Privileges of the Organization (MRP 145.A.75) and RA 4818 - Limitations on the Organization (MRP 145.A.80) - Approved Maintenance Organizations (AMOs) only.◄ 15 The MAA does not intend to conduct interviews with any of these individuals. Rather, where the individual is the holder of an EASA Form 4, this fact will be taken as evidence of the individual’s competence and suitability to hold this appointment. 16 ►Refer to RA 4812(1) – Certification of Air System Release (MRP 145.A.50(a)).◄

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(1) This statement ►declares◄ that the maintenance has been performed to the standard accepted by the MAA; and

(2) The statement differentiates itself from an EASA Part 145 release statement for an ►Air System◄ with an EASA Certificate of Airworthiness. An example release to service statement that is acceptable to both the MAA and the UK CAA is contained in Leaflet B-40►◄.

b. The reference to RA 4810 ►– Technical Information◄ (MRP 145.A.45) may be taken to mean a reference to EASA Part 145.A.45, subject to the additional requirements of approved maintenance data listed at Paragraph 23 of this document.

Occurrence reporting

19. The organization ►should◄ report to the MOD any condition of the ►Air System or Air System◄ component identified by the organization that has resulted or may result in an unsafe condition that is a ►◄ hazard to flight safety. The Supplement ►should◄ detail its procedures for such reporting to the MAA, TAA, ►Mil◄ CAM and broader MOD, as required. Procedures ►should◄ state how the organization will ►manage◄ Occurrence reporting►17◄.

Military role equipment

20. Any specific ‘military role equipment’ fitted to the ►Air System◄18, ►should◄ be controlled and maintained iaw procedures detailed in the Supplement. This ►should◄ include a procedure for the acceptance, storage and provisioning of ‘military role equipment’ parts, which ►should◄ include content to demonstrate compliance with the requirements of RA 4809(1) ►– Component Classification (MRP 145.A.42(a))◄ and RA 4809(2) ►– Suitability of Components ◄(MRP 145.A.42(b)) ►◄.

21. Where ‘military role equipment’ is present, certifying staff and support staff ►should◄ have an adequate understanding of such equipment to be maintained and the associated organizational procedures for maintaining it. Procedures ►should◄ be detailed in the Supplement to state how staff will achieve this requirement, which should include the need to expand relevant continuation training (as required by EASA 145.A.35) where necessary.

Special Instructions (Technical)

22. Where TAA-issued Special Instructions (Technical) (SI(T)s)►19◄ are applicable20, the Supplement ►should◄ detail procedures for the organization to:

a. Ensure completeness of, and compliance with, relevant SI(T)s.

b. Hold a copy of all SI(T)s that the TAA and ►Mil◄ CAM requires them to comply with.

c. Prior to the installation of a component, ensure that the particular component is eligible to be fitted when different SI(T) standards may be applicable; this is in addition to the requirements of EASA 145.A.42(b).

Approved maintenance data

23. In order to reflect the differing sources of ‘approved’ maintenance data in MRP Part 145 and EASA Part 145, the Supplement should include the following:

a. A procedure to ensure that the organization holds and uses maintenance data►21◄ and to ensure that the use of such data has been approved by the relevant TAA.

b. A procedure for modifying maintenance instructions iaw the requirements of RA 4810(4) ►– Modification of Technical Information◄ (MRP 145.A.45(d))22.

c. Where MOD-sponsored publications are used:

17 ►Refer to RA 1410 – Occurrence Reporting.◄ 18 ►◄Leaflet B-40 defines ‘military role equipment’ as those elements of an ►Air System◄ modification that cannot be approved by EASA due to its nature and military security requirements. 19 ►Refer to RA 5405 – Special Instructions (Technical).◄ 20 It is acknowledged that, subject to MAA agreement, the TAA may sanction the use of civil instructions (eg Airworthiness Directives) in place of SI(T)s as part of the platform’s Airworthiness Strategy. However, should any ‘military role equipment’ used on the ►Air System◄ be subject to SI(T)s, compliance will need to be demonstrated. 21 ►Refer to RA 4810(1) – Approved and Current Technical Information (MRP 145.A.45(a)) and RA 4810(2) – Applicable Technical Information (MRP 145.A.45(b)).◄ 22 Due to the very nature of the ►Air System◄ lease arrangements with the MOD, an organization maintaining Military Registered Civil-Owned ►Air Systems◄ will normally be required to hold both an MRP Part 145 and EASA Part 145 approval. As such, any deviation from approved ►Technical Information◄ must only be done following approval from the TAA, who will establish any financial implications that such deviation may have to the MOD, prior to the deviation being authorized.

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(1) A procedure for notifying the MOD publication sponsor of maintenance data inaccuracies►23◄.

(2) A procedure for checking that all publication amendments are being received and incorporated►24◄.

Tools and equipment

24. The process for the control of tools, equipment and test equipment must ensure that the ►Air System or Air System◄ component is clear of all tools and equipment on completion of any maintenance or servicing activity, as required by EASA Part M, M.A.402(f). If this element of the process is not detailed in the EASA Part 145 Maintenance Organization Exposition, the process ►should◄ be detailed in the Supplement. ►◄

25. Where equipment and tools are provided as Government Furnished Equipment, the organization ►should◄ state the procedure for controlling such equipment and tools in their Supplement.

Personnel and Certifying Staff

26. Where applicable, the personnel records established through EASA 145.A.35(j) should record the individual’s security clearance.

27. Where necessary, the process for granting military pilots certifying authorizations ►should◄ be detailed in the Supplement. This process ►should◄ state the qualifying criterion used and the scope of authorizations permitted.

Quality system

28. The organization’s independent audit plan, as established through EASA 145.A.65(c), ►should◄ be expanded to encompass the additional procedures detailed in the Supplement.

Appendix:

1. MRP Part 145 Supplement - Approval Processes.

23 ►Refer to RA 4810(3) – Requirements to Inform Technical Information Author of Errors (MRP 145.A.45(c)). 24 Refer to RA 4810(7) – Maintaining the Amendment State of Technical Information (MRP 145.A.45(g)).◄

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APPENDIX 1 TO ANNEX A TO RA 4800

MRP PART 145 SUPPLEMENT - APPROVAL PROCESSES APPLICATION FOR MRP PART 145 APPROVAL

Applicant actions

1. An application for the issue or variation of an MRP Part 145 approval should be submitted to the MAA MAOS Approval Group ►[email protected]◄ on an MAA Form 225. In submitting the Form 2, the organization should:

a. Demonstrate the need for an MRP Part 145 approval (eg a contracted requirement to maintain UK military registered ►Air Systems◄).

b. Ensure that the application does not exceed the scope of the ratings and limitations contained in the EASA Part 145 approval certificate26.

c. State their request to gain an approval by submitting a completed Supplement to the organization’s approved EASA Part 145 Maintenance Organization Exposition, in place of a full MRP Part 145 Maintenance Organization Exposition ►◄.

2. Once the MAA has confirmed that the organization may apply for MRP Part 145 approval by ►submitting◄ a Supplement, the organization ►should◄ complete a Supplement for assessment by the MAA. A Supplement template is available to download from the MAOS page on the MAA website.

3. The completed Supplement should be submitted to ►[email protected]◄, together with the current EASA Part 145 Maintenance Organization Exposition and the latest CAA Audit Report.

MAA actions

4. On receipt of the MAA Form 2, the MAA will assess the organization’s need for approval and the required level of MAA oversight:

a. In those instances where the MAA assesses that there is sufficient CAA oversight of the activities undertaken (less the additional requirements detailed in this document), the organization will be informed that they may complete a Supplement to apply for MRP Part 145 approval.

b. Exceptionally, where the MAA assesses that completion of a Supplement will not be either appropriate or sufficient for the organization to demonstrate compliance with the additional requirements of MRP Part 145, the MAA will instruct the organization to demonstrate full ►MRP Part 145◄ compliance through the submission of an MRP Part 145 Maintenance Organization Exposition. In such instances, the following should be noted:

(1) The provisions of RA 4816(4) – ►Exemption to Content of MOE due to European Aviation Safety Agency (EASA) Part 145 Approval◄ (MRP 145.A.70(d)) ►◄ may still be applied.

(2) In compiling the MRP Part 145 Maintenance Organization Exposition, the organization should highlight to the relevant TAA any areas where MRP compliance may invalidate their EASA Part 145 approval. Where this is the case, an application for a Regulatory Exemption, Waiver or Alternative Acceptable Means of Compliance, as appropriate, may be submitted to the MAA for consideration►◄27.

5. When satisfied that the conditions of MRP Part 145 have been met through assessing the Supplement and, where necessary, conducting an approval visit to the organization, the MAA will issue an MRP Part 145 approval certificate to the ►MO◄.

CONTINUATION OF MRP PART 145 APPROVAL

6. The MRP Part 145 approval is issued for an unlimited duration, noting the limitation detailed in Paragraph 16 of this ►Appendix◄. It ►should◄ remain valid subject to:

a. The organization remaining in compliance with the Supplement; and

25 The MAA Form 2 is available on the MAA Website. 26 It is not necessary for the application to cover all B and C Ratings held under the EASA Part 145 approval if such ratings are outside the scope of the Maintenance Approved Organization Scheme. This scope is detailed in RA 1005 - Contracting with Competent Organizations ►◄. 27 ►MAA03 – MAA Regulatory Process.◄

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https://www.gov.uk/government/publications/maintenance-approved-organization-scheme-maos



b. The MAA and/or their authorized representatives being granted access to the organization to determine continued compliance with the Supplement; and

c. The organization continuing to hold a valid EASA Part 145 approval for the applicable class and ratings; and

d. The organization providing the MAA with a copy of each applicable EASA Part 145 CAA Audit Report within 10 working days of receiving this report; and

e. The MRP Part 145 approval certificate not being surrendered or revoked.

7. The organization ►should◄ ensure that the Supplement continues to reflect the organization’s procedures and activities. Any change will require an amendment of the Supplement iaw Paragraphs 9-12 of this ►Appendix◄.

8. The organization should continue to cooperate with the MAA, as required.

AMENDMENT OF MRP PART 145 APPROVAL

9. Any amendment of the Supplement ►should◄ be submitted to the MAA iaw the relevant procedure contained within the Supplement.

10. In addition, the organization ►should◄ notify the MAA of any proposal to carry out any of the following changes in order for the MAA to determine continued compliance with the Supplement and to amend, if necessary, the approval certificate:

a. The ownership of the organization or its parent company.

b. The name of the organization.

c. The main location of the organization.

d. Additional locations of the organization at which the MRP Part 145 approval will be exercised.

e. The Accountable Manager.

f. Any of the persons nominated as responsible for the organization’s compliance with the Supplement, as detailed in Paragraph 16 of the ►Annex◄.

11. Notification should occur before such changes take place, except in the case of proposed changes in personnel not known to the management beforehand; these changes should be notified at the earliest opportunity.

12. Failure to ensure that the EASA Part 145 Maintenance Organization Exposition and the Supplement are kept up to date in respect of regulatory changes, and that the organization staff comply with the procedures therein, could invalidate the MRP Part 145 approval.

REVOCATION, SURRENDER AND SUSPENSION OF THE MRP PART 145 APPROVAL

13. An MRP Part 145 approval ►should◄ be revoked or suspended28 by the MAA if the organization fails to comply with the conditions and requirements detailed in this ►Annex◄.

14. A revocation or suspension of the EASA Part 145 approval ►should◄ automatically invalidate the MRP Part 145 approval.

15. The MAA will notify the holder of an MRP Part 145 approval in writing ►regarding◄ any suspension.

16. Organizations that do not exercise the privileges of their approval within a 2 year period should surrender the approval unless a contractual requirement for its retention can be demonstrated.

17. Upon surrender or revocation, the MRP Part 145 approval certificate ►should◄ be returned to the MAA.

28 ►The◄ MAA’s Enforcement Policy is contained within ►MAA01: MAA Regulatory Policy◄.

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RA 4801 – ►Certifying Staff◄

Rationale ►A maintenance organization will appoint individuals with a specific responsibility to certify the completion of military registered Air System maintenance and/or componentmaintenance in accordance with MRP Part 145. If such individuals were to beauthorized as certifying staff without a minimum level of qualification and experience,Airworthiness may be compromised. RA 4801 defines the qualification andexperience criteria to be met by maintenance personnel in order to be eligible forauthorization as certifying staff, subject to meeting other applicable requirements1.◄

Contents 4801(1): Withdrawn

4801(2): Certifying Staff ►◄

Regulation

4801(1)

The Regulator ►◄

4801(1) Withdrawn

AcceptableMeans ofCompliance

4801(1)

The Regulator ►◄1. Withdrawn

GuidanceMaterial

4801(1)

The Regulator ►◄2. Withdrawn

Regulation

4801(2)

Certifying Staff ►◄

4801(2) For the purpose of ►MRP Part 145◄, staff shall meet oneof the following eligibility criteria to be qualified as ‘certifyingstaff’:

(a) Be appropriately experienced and have completed, asa minimum, MOD Phase 2 technical training; or

(b) Hold an appropriate category A, B1, B2 or C licence incompliance with European Aviation Safety Agency(EASA) Annex III (Part 66); or

(c) Be appropriately experienced and have completedsuitable civilian training (civilian contractors only).


4801(2)

Certifying Staff ►◄Common AMC

3. Nil.

Additional AMC – Military Maintenance Organizations (MMOs) only

4. Military staff within an MMO will meet the eligibility criteria ►◄ by virtue of theirtrade and rank. In this respect, the relevant single-Service eligibility criteria should bemet ►◄.

Additional AMC – Approved Maintenance Organizations (AMOs) only

5. The qualification of an individual as certifying staff should be categorizedaccording to the scope of certification privileges available and the trade boundaries►within◄ which these privileges may be exercised.

1 ►Refer to RA 4806 – Personnel Requirements (MRP 145.A.30) and RA 4807 – Certifying Staff and Support Staff (MRP 145.A.35).◄

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GuidanceMaterial

4801(2)

Certifying Staff ►◄Common GM

6. ►◄ This ►Regulation◄ does not seek to Regulate the ►process to◄ issue►◄ certification ►privileges◄ or any other engineering authorizations►2◄.

7. ‘Certifying staff’ are only those individuals with the specific responsibility ofendorsing the ‘Certification of ►Air System Release and/or Component◄ Release’►3,with the exception of where the MOD Form 700 is used as the technical log and mustbe completed in accordance with the relevant Instructions for Use.◄ Certifying staffmust not be confused with ‘support staff’, who may hold authorization to signmaintenance documentation, but do not hold the authorization privilege to endorse the‘Certification of ►Air System Release and/or Component◄ Release’.

8. The term ‘MOD Phase 2 technical training’ ►denotes initial MOD providedaviation specialist training that prepares Service personnel for their first employment inthe Defence Air Environment.◄

9. In derogation to ►this Regulation◄, non-engineering staff may also be grantedmaintenance authorizations►4◄.

Additional GM - MMOs only

10. ►Within MMOs, MOD Form 700 documentation5 associated with a maintenancetask is signed at 3 key stages and MMOs must promulgate instructions to identify thespecific responsibilities of these signatories:

a. 1st signature – completed by the tradesman/operator.

b. 2nd signature – completed by the supervisor.

c. 3rd signature – completed by the coordinator.

11. At each stage the individual who has carried out the work detailed must sign forthat work. When one or more individuals are involved with a maintenance task, eachperson must identify and sign for the work that they have carried out themselves.

12. For the purposes of MRP Part 145, personnel that assume the responsibilities ofboth the 1st and 2nd signatory are known as ‘self-supervisors’ who can undertake suchactivity unless restricted by Technical Information.

13. When signing for an activity as a self-supervisor, the individual certifying themaintenance documentation accepts the responsibilities of both the 1st and 2nd

signature. On maintenance documentation that has space for only one signature, it isimplicit on signing that the individual is accepting both 1st and 2nd signatureresponsibilities.◄

Additional GM - AMOs only

14. ►The terms ‘certifying staff’ and ‘support staff’ are used throughout MRP Part 145, as derived from European Military Airworthiness Requirements (EMAR) 145,together with the introduction by the MAA of a further term, ‘support staff withsupervisory authorization’ in order to provide greater equivalence with traditional Militarylevels of signing Air System maintenance documentation as a ‘2nd signature’.

2 ►Refer to RA 4806 – Personnel Requirements (MRP 145.A.30) and RA 1006 – Delegation of Engineering Authorizations.3 Refer to RA 4812 – Certification of Air System Release and Component Release (MRP 145.A.50).4 Refer to RA 4806(10) – Non-engineering Staff (MRP 145.A.30(j)).5 Refer to RA 4813 – Maintenance Records (MRP 145.A.55).◄

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GuidanceMaterial

4801(2)

Table 1. Maintenance personnel terms.

Term used in MRP Part 145Term used in MMOs and MOD Form

700 series documentation

Certifying Staff 3rd signature

Support Staff with SupervisoryResponsibilities

2nd signature

Support Staff 1st signature

Note: The terms listed in Table 1 are not interchangeable terms and must only be usedin the relevant maintenance organizations and environments.◄

15. When an individual does not hold an appropriate Category A, B1, B2 or C licencein compliance with EASA Annex III (Part 66), a suitable level of experience andqualification must be demonstrated before the individual can be ►employed and authorized◄ as certifying staff. In addition to the ►authorization◄ requirements►6◄, itis incumbent on the person granting a certification authorization to such an individual toassess their basic experience and qualification level in the absence of a recognizedEASA licence.

6 ►Refer to of RA 4807(2) – Certification and Supervisory Authorizations (MRP 145.A.35(b)).◄

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RA 4802 - Scope of the MRP Part 145 (MRP 145.A.10) - ApprovedMaintenance Organizations (AMOs) only

Rationale ►Contractor-run Maintenance Organizations (MOs) are required to be competent tomaintain military registered Air Systems and/or components. Without a system ofassessment and approval, the maintenance of military registered Air Systems and/orcomponents cannot be assured as being compliant with current Regulations,potentially increasing the risk to Air Safety and subsequent Risk to Life. MRPPart 145 approval will permit contractor-run MOs to maintain military registered AirSystems and/or components within a defined scope, thus providing Aviation DutyHolders and Accountable Managers (Military Flying) assurance of an MO’scompetence and suitability to carry out contracted maintenance activities.◄

Contents 4802(1): Scope of the MRP Part 145 (MRP 145.A.10(a))

Regulation

4802(1)

Scope of the MRP Part 145 (MRP 145.A.10(a))

4802(1) A contractor-run ►MO◄ shall meet the requirements of►MRP Part 145◄ to qualify for the issue or continuation ofan approval to maintain military ►registered Air Systems and/or◄ components.


4802(1)

Scope of the MRP Part 145 (MRP 145.A.10(a))1. Nil.

GuidanceMaterial

4802(1)

Scope of the MRP Part 145 (MRP 145.A.10(a))‘Line’ and ‘base’ maintenance

2. For the purposes of ►MRP Part 145◄ approval, the terms ‘line’ and ‘base’maintenance are used to define specific types of maintenance activity. These termsoverlap, but are not aligned to, the military framework of ‘forward’ and ‘depth’, sinceline and base maintenance can be carried out in both the forward and depth domains.It is possible for an organization to be approved to conduct line maintenance only,base maintenance only or both.

a. Line maintenance is defined as any maintenance that is carried outbefore flight to ensure that the ►Air System◄ is fit for the intended flight. Itmay include, but is not limited to:

(1) Trouble shooting/fault diagnosis.

(2) Fault rectification.

(3) Component replacement with use of external test equipment ifrequired. Component replacement may include components such asengines, propellers and rotors.

(4) Scheduled maintenance and/or checks including visual inspectionsthat will detect obvious unsatisfactory conditions/discrepancies but do notrequire extensive in depth inspection. It may also include internalstructure, systems and power plant items, which are visible through quickopening access panels/doors.

(5) Minor Repairs and Modifications, which do not require extensivedisassembly and can be accomplished by simple means.

b. Maintenance tasks falling outside these criteria are considered to be basemaintenance.

c. For temporary or occasional cases (eg Service Instructions (Technical)

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GuidanceMaterial

4802(1)

(SI(T)s) or Airworthiness Directives (ADs)), the Quality Manager may acceptbase maintenance tasks to be performed by a line ►MO◄ provided allregulatory requirements are fulfilled.

d. ►Air Systems◄ maintained in accordance with ‘progressive’/‘equalized’preventive maintenance type programmes may be individually assessed inrelation to this paragraph. In principle, the decision to allow some equalizedchecks to be carried out by a ‘line maintenance only’ approved organization willbe determined by the assessment that all tasks within the particular check canbe carried out safely to the required standards at the designated linemaintenance station.

3. Where the AMO uses facilities both inside and outside the UK, such as satellitefacilities, subcontractors, line stations etc, such facilities may be included in theapproval without being identified on the approval certificate subject to the MaintenanceOrganization Exposition identifying the facilities and containing procedures to controlsuch facilities and the MAA being satisfied that they form an integral part of the AMO.

Guidance for small AMOs

4. It is recognized that MRP Part 145 approval may be required by ►two◄ quitedifferent types of small AMO, the first being the component maintenance workshop,eg radio equipment or wheels etc, the second being specialized services, eg weldingor ►Non Destructive Testing◄. This part of the Guidance Material provides detail onhow these small AMOs may satisfy the intent of ►MRP Part 145◄.

5. Where only one person is employed (holding the certifying function and others),this AMO may use the guidance provided in the following sub-paragraphs, limited tothe following approval classes: Class B2 – Small Piston Engines; Class C –Components; ►and◄ Class D1 – Non-Destructive Inspections.

Note:

The following sub-paragraphs only include the relevant clauses of ►MRP Part 145◄ for which this guidance applies. When RAs within ►MRP Part 145◄ are not listed, then it means that full compliance must be demonstrated.

a. With reference to RA 4806(2) ►– Personnel Responsible to the Accountable Manager (Maintenance)◄ (MRP 145.A.30(b)), the minimumrequirement is for one full time person who meets the ►requirements1◄ forcertifying staff and holds the position of Accountable Manager, MaintenanceEngineer and is also certifying staff. No other person may issue a certificate ofmaintenance and therefore, if absent, no maintenance may be released duringsuch absence.

Note:

‘Full time’ for the purpose of ►MRP Part 145◄ means not less than 35 hrsper week except during vacation periods.

b. The quality monitoring function►2◄ may be contracted to an appropriateAMO or to a person with appropriate technical knowledge and extensiveexperience of quality audits employed on a part time basis, with the agreementof the MAA.

c. In the case of an approval based on one person using a subcontractedquality monitoring arrangement, the requirement►3◄ for a record of certifyingstaff ►◄ is satisfied by the submission to and acceptance by the MAA of theMAA Form 4. With only one person, the requirement for a separate record ofauthorization is unnecessary because the MAA Form 3A Approval Scheduledefines the authorization. An appropriate statement to reflect this situation must

1 ►Refer to RA 4801(2) – Certifying Staff.2 Refer to RA 4815(3) – Quality System (MRP 145.A.65(c)).3 Refer to RA 4807 – Certifying Staff and Support Staff (MRP 145.A.35).◄

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GuidanceMaterial

4802(1)

be included in the exposition.

d. With reference to RA 4815(3) ►– Quality System◄ (MRP 145.A.65(c)), itis the responsibility of the contracted quality monitoring organization or personto make a minimum of 2 visits per 12 months to the AMO being monitored and itis the responsibility of this organization or person to carry out such monitoringon the basis of one visit pre-announced and one visit unannounced to the AMO.It is the responsibility of the AMO to comply with the findings of the contractedquality monitoring organization or the person.

Note:

It must be understood that, if the contracted quality monitoring organization orthe above mentioned person loses or gives up its approval, then theorganization’s approval will be suspended.

6. An AMO with up to 10 persons involved in maintenance may use the followingguidance:

a. With reference to RA 4806(2) ►– Personnel Responsible to the Accountable Manager (Maintenance)◄ (MRP 145.A.30(b)), the normalminimum requirement is for the employment on a full-time basis of 2 personswho meet the ►◄ requirements►1◄ for certifying staff, whereby one holds theposition of ‘Maintenance Engineer’ and the other holds the position of ‘QualityAudit Engineer’.

b. Either person can assume the responsibilities of the AccountableManager, providing that they can comply in full with the applicable elements ofRA 4806(1) ►– Accountable Manager (Maintenance)◄ (MRP 145.A.30(a)), butthe Maintenance Engineer will be the certifying person to retain theindependence of the Quality Audit Engineer to carry out audits. Nothingprevents either engineer from undertaking maintenance tasks providing that theMaintenance Engineer endorses the ►Certification of Air System Release and/or Component Release◄.

c. The Quality Audit Engineer will have similar qualifications and status tothe Maintenance Engineer for reasons of credibility, unless he has a proventrack record in ►Air System◄ quality assurance, in which case some reductionin the extent of maintenance qualifications may be permitted.

d. In cases where the MAA agrees that it is not practical for the organizationto nominate a post-holder for the quality monitoring function, this function maybe contracted in accordance with Paragraph 5.

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RA 4803 – ►Method of◄ Application for Approval (MRP 145.A.15) -Approved Maintenance Organizations (AMOs) only

Rationale ►Formal contractor-run Maintenance Organization (MO) application for initial MRPPart 145 approval, or to amend an existing approval, is required to follow a consistentapproach. Without a standardised format, MO approvals may be delayed due to theincomplete submission of evidence or misinterpretation of the intended scope of work.An inconsistent approach to seeking approval could potentially limit assurance that AirSystem and/or component maintenance is being performed using appropriateengineering practices. RA 4803 requires that all contractor-run MO applications forinitial MRP Part 145 approval, or to amend an existing approval, are submitted in aspecified format that stipulates the minimum information requirement for suchapplications.◄

Contents 4803(1): ►Method of◄ Application for Approval (MRP 145.A.15(a))

Regulation

4803(1)

►Method of◄ Application for Approval (MRP 145.A.15(a))

4803(1) An application for the issue or ►for the◄ variation ►to◄ an►existing◄ approval shall be made to the MAA in anagreed form and manner.

AcceptableMeans ofCompliance4803(1)

►Method of◄ Application for Approval (MRP 145.A.15(a))1. The application ►for the issue or variation to an existing approval◄ should bemade on an MAA Form 2.

2. Applications should be submitted to the MAA Maintenance ApprovedOrganization Scheme (MAOS) Approvals Group►1◄.

GuidanceMaterial4803(1)

►Method of◄ Application for Approval (MRP 145.A.15(a))3. The MAA Form 2 can be downloaded from the MAOS Approvals page on theMAA Website►2 . Applicants are strongly advised to contact the MAA in advance ofany formal submission, to discuss their requirements and the approval process1.◄

1 ►[email protected] https://www.gov.uk/government/publications/maintenance-approved-organization-scheme-maos◄

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RA 4804 - Terms of Approval (MRP 145.A.20) - ApprovedMaintenance Organizations (AMOs) only

Rationale ►Contractor-run Maintenance Organizations (MOs) are employed to undertakemaintenance tasks for a defined scope of work. In order to assure Aviation DutyHolders and Accountable Managers (Military Flying) that such maintenance tasks areundertaken in compliance with MRP Part 145, a system for MAA approval is required.Without such a system, contractor-run MOs could operate outside the scope of theircapability, which has potential for Air Systems and components to be incorrectlymaintained. In order to mitigate this hazard, RA 4804 requires that contractor-runMOs are approved using a consistent class and rating numbering system, according totheir scope of work.◄

Contents 4804(1): Terms of Approval (MRP 145. A.20(a))

Regulation

4804(1)

Terms of Approval (MRP 145.A.20(a))

4804(1) The contractor-run ►MO◄ shall specify the scope of workrequired for approval in its Exposition.


4804(1)

Terms of Approval (MRP 145.A.20(a))1. The approval class and rating system defined at Annex A to this Regulationshould be used.

GuidanceMaterial

4804(1)

Terms of Approval (MRP 145.A.20(a))2. ►Table A-1, within Annex A to this Regulation,◄ identifies the correspondingsystem number, as defined in the Aerospace and Defence Industries ASD/AIAS1000D Standard Numbering System (SNS), for each component rating.

►◄

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ANNEX A

ORGANIZATIONS APPROVAL CLASS AND RATING SYSTEM

1. Table A-1 outlines the full extent of approval possible under ►MRP Part 145◄ in astandardized form. An organization may be granted an approval ranging from a single class andrating with limitations to all classes and ratings with limitations.

2. In addition to Table A-1, the AMO is required►1◄ to indicate its scope of work in theMaintenance Organization Exposition (MOE) (see also Paragraph 11).

3. Within the approval class(es) and rating(s) granted by the MAA, the scope of work specified inthe MOE defines the exact limits of approval. It is therefore essential that the approval class(es) andrating(s) and the organization's scope of work are compatible.

4. A Category A class rating means that the AMO may carry out maintenance on the ►Air System◄ and any component (including engines/APUs) only whilst such components are fitted to the►Air System◄, except that such components can be temporarily removed for maintenance whensuch removal is expressly permitted by the ►Air System◄ maintenance manual to improve access formaintenance, subject to a control procedure in the MOE acceptable to the MAA. The limitation sectionwill specify the scope of such maintenance, thereby indicating the extent of approval.

5. A Category B class rating means that the AMO may carry out maintenance on the uninstalledengine/APU and engine/APU components only whilst such components are fitted to the engine/APUexcept that such components can be temporarily removed for maintenance when such removal isexpressly permitted by the engine/APU manual to improve access for maintenance. The limitationsection will specify the scope of such maintenance thereby indicating the extent of approval. An AMOwith a Category B class rating may also carry out maintenance on an installed engine during ►Air System◄ maintenance, subject to a control procedure in the MOE ►acceptable to the MAA◄. TheMOE scope of work must reflect such activity where permitted.

6. A Category C class rating means that the AMO may carry out maintenance on uninstalledcomponents (excluding engines and APUs) intended for fitment to the ►Air System◄ or engine/APU.The limitation section will specify the scope of such maintenance thereby indicating the extent ofapproval. An AMO with a Category C class rating may also carry out maintenance on an installedcomponent during ►Air System◄ maintenance or at an engine/APU maintenance facility subject to acontrol procedure in the MOE. The MOE scope of work must reflect such activity where permitted.

7. A Category D class rating is a self-contained class rating not necessarily related to a specific►Air System◄, engine or other component. The D1 - Non-Destructive Testing (NDT) rating is onlynecessary for an AMO that carries out NDT as a particular task for another organization. An AMO witha class rating in A or B or C Category may carry out NDT on products it is maintaining, subject to theMOE containing NDT procedures, without the need for a D1 class rating.

8. Category A class ratings are subdivided into line and base maintenance. An AMO may beapproved for either line or base maintenance or both.

9. The ‘limitation’ section is intended to give the MAA maximum flexibility to customize theapproval to a particular organization. Table A-1 specifies the types of limitation possible and, whilstmaintenance is listed last in each class rating, it is acceptable to stress the maintenance task ratherthan the ►Air System◄ or engine type or manufacturer, if this is more appropriate to the organization.An example could be avionic systems installations and maintenance.

10. Table A-1 makes reference to series and type in the limitation section of ►class◄ A and B.Series means a specific type series such as ►Typhoon◄ or ►Merlin◄ or ►EJ200◄ etc. Typemeans a specific type or model such as ►FGR Mk4◄ or ►HC Mk4◄ or ►Mk101◄ etc. Any numberof series or types may be quoted.

11. When a lengthy capability list is used which could be subject to frequent amendment, then suchamendment must be in accordance with a procedure acceptable to the MAA and included in the MOE.The procedure must address the issues of who is responsible for capability list amendment controland the actions that need to be taken for amendment. Such actions include ensuring compliance with►MRP Part 145◄ for products or services added to the list.

1 ►Refer to RA 4804(1) – Terms of Approval (MRP 145.A.20(a)).◄

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Note:

Approvals granted prior to 1 Jan 14 for ►class ratings◄ C51 through to C57 have been issued under►class ratings◄ C21 through to C27. Any approvals granted under ►class ratings◄ C21 through toC27 under this legacy system will have their numbering amended at the next issue of the AMO’sApproval Schedule. ►This change in the numbering of class ratings does not require an immediate resubmission of the organization’s Maintenance Organization Exposition (MOE), but MOEs submittedafter 1 Jan 14 must use the below class ratings.◄

Table A-1. Approval Classifications ►and SNS Numbering◄

CLASS RATING ►SNS NUMBER◄ LIMITATION LINE BASE►AIR SYSTEM◄

A1 Aeroplanes/above 5700 kg

Will state aeroplanemanufacturer orseries or type and/orthe maintenancetask(s).

A2 Aeroplanes/5700 kg andbelow

Will state aeroplanemanufacturer orseries or type and/orthe maintenancetask(s).

A3 Helicopters Will state helicoptermanufacturer orseries or type and/orthe maintenancetask(s).

A4 ►Air System◄ otherthan A1, A2 andA3

Will state ►Air System◄ series ortype and/or themaintenance task(s).

ENGINES B1 Turbine Will state engine manufacturer or seriesor type and/or the maintenance task(s).

B2 Piston Will state engine manufacturer or seriesor type and/or the maintenance task(s).

B3 APU Will state engine manufacturer or seriesor type and/or the maintenance task(s).

COMPONENTS(other thancompleteengines orAPUs)

C1 Air Cond &Press

►21◄ Quote ►Air System◄ type(s) and/orcomponent manufacturer or the particularcomponent and/or cross-refer to acapability list in the MOE.

C2 Auto Flight ►22◄C3 Comms andNav

►23-34-43◄

C4 Doors -Hatches

►52◄

C5 ElectricalPower

►24-33-91◄

C6 Equipment ►25-38-45-50◄C7 Engine - APU ►49-71-72-73-74-

75-76-77-78-79-80-81-82-83-86◄

C8 Flight Controls ►27-55-57.40-57.50-57.60-57.70◄

C9 Fuel -Airframe

►28-48◄

C10 Helicopter -Rotors

►62-64-66-67◄

C11 Helicopter -Transmission

►63-65◄

C12 Hydraulic ►29◄

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C13 Instruments ►31-46◄C14 LandingGear

►32-90◄

C15 Oxygen ►35-47◄C16 Propellers ►61◄C17 Pneumatic ►36-37◄C18 Protectionice/rain/fire

►26-30◄

C19 Windows ►56◄C20 Structural ►53-54-57.10-

57.20-57.30◄C21 Water Ballast ►41◄C22 PropulsionAugmentation

►84◄

C51 AttackSystems

►39-40-42◄

C52 Radar/Surveillance

►92-93◄

C53 WeaponsSystems

►94◄

C54 Crew Escape ►95◄C55 Missiles/Drones/Telemetry

►96◄

C56Reconnaissance

►97-98◄

C57 ElectronicWarfare

►99◄

SPECIALIZEDSERVICES

D1 Non-DestructiveTesting

Will state particular NDT method(s).

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RA 4805 – Facility Requirements (MRP 145.A.25)

Rationale ► In order to carry out Air System and/or Air System component maintenance it isessential that appropriate engineering facilities are provided. Without suitableinfrastructure, maintenance personnel and equipment may not have the necessaryprotection from the environment, which can increase the potential for maintenanceerrors and Risk to Life. RA 4805 details the appropriate facilities for MaintenanceOrganizations to ensure that the scope of work can be undertaken safely.◄

Contents 4805(1): Facility Requirements (MRP 145.A.25(a))

4805(2): Office Accommodation (MRP 145.A.25(b))

4805(3): Working Environment (MRP 145.A.25(c))

4805(4): Storage Facilities (MRP 145.A.25(d))

Regulation

4805(1)

Facility Requirements (MRP 145.A.25(a))

4805(1) The organization shall ensure that facilities are provided►that are◄ appropriate for ►◄ maintenance work►1◄,ensuring, when necessary, protection from the weatherelements and appropriate security safeguards for anyclassified items. Specialized workshops and bays shall besegregated as appropriate to ensure that environmental andwork area contamination is unlikely to occur.

(a) For ‘base’ or ‘depth’ maintenance of ►Air Systems,Air System◄ hangars shall be both available andlarge enough to accommodate ►Air System◄ ‘base’or ‘depth’ maintenance. Where such facilities cannotbe established at deployed locations, MilitaryMaintenance Organizations (MMOs) shall assess thesuitability of alternative facilities and ensure that anyadditional risk to Air Safety is appropriately managed,advising the Delivery Duty Holder (DDH) asappropriate.

(b) For component maintenance, component workshopsshall be large enough to accommodate the ►◄maintenance ►work◄.


4805(1)

Facility Requirements (MRP 145.A.25(a))Common AMC

1. Protection from the weather elements relates to the normal prevailing localweather elements that are expected throughout any 12 month period. ►Air System◄hangar structures used to accommodate ‘base’ or ‘depth’ maintenance andcomponent workshop structures should prevent the ingress of rain, hail, ice, snow,wind and dust etc; floors should be sealed to minimize dust.

Additional AMC - MMOs only

To be read in conjunction with the Common AMC.

2. In derogation to Paragraph 1, expeditionary operations (and training for such

1 ►For Approved Maintenance Organizations (AMOs), the maintenance work is that which is undertaken in accordance with the approved scope of work; refer to RA 4804 – Terms of Approval (MRP 145.A.20) – Approved Maintenance Organizations(AMOs) only.◄

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4805(1)

operations) may necessitate MMOs to undertake scheduled maintenance without theprovision of a suitable hangar, including that level of maintenance which wouldotherwise be carried out in the ‘depth’ domain. In such circumstances, the MMOshould assess and utilize those resources available to establish an environmentappropriate for the scope of maintenance to be carried out. If adequate facilitiescannot be established, the DDH should be informed to ensure that any additional AirSafety risk is appropriately managed.

3. When operating at UK civilian or foreign airfields, MMOs should adhere to►Defence Policy and single-Service◄ requirements for security safeguards.

Additional AMC - ►AMOs◄ only


4. Where the hangar is not owned by the organization or provided by the MOD, itmay be necessary for an AMO to establish proof of tenancy. In addition, sufficienthangar space to carry out ►◄ maintenance should be demonstrated by thepreparation of a projected ►Air System◄ hangar visit plan relative to themaintenance programme. The ►Air System◄ hangar visit plan should be updatedon a regular basis.

GuidanceMaterial

4805(1)

Facility Requirements (MRP 145.A.25(a))Common GM

5. For ‘line’ or ‘forward’ maintenance of ►Air Systems◄, hangars are notessential but it is recommended that, where practicable, access to hangaraccommodation be demonstrated for usage during inclement weather for minorscheduled work and lengthy fault rectification.

6. Facilities must provide the appropriate level of security to any classified itemsbeing maintained and/or stored, be they held individually or installed to an ►Air System◄ or assembly. AMOs must meet their contractual requirements in thisregard.


7. ►When a UK military registered Air System is at a foreign or civilian airfield, the appropriate Command may authorize guarding by the host nation or UK Servicepersonnel in order to preserve the Airworthiness of the Air System.

8. If security requirements necessitate the removal of classified equipment, it mustbe undertaken in accordance with the Air System Document Set and the items held ina secure store as required by Defence Policy.◄


9. The ‘hangar visit plan’ is a document that shows the projected planning ofhangar utilization. The purpose of the hangar visit plan is to show that adequatefacilities are at the disposal of the organization for the proposed scope ofmaintenance.

Regulation

4805(2)

Office Accommodation (MRP 145.A.25(b))

4805(2) The organization shall ensure that office accommodation isprovided for the management of the ►maintenance◄ workreferred to in RA 4805(1) ►– Facility Requirements◄ (MRP145.A.25(a)), and certifying staff so that they can carry outtheir designated tasks in a manner that contributes to good►Air System◄ maintenance standards.


Office Accommodation (MRP 145.A.25(b))10. ►Air System◄ maintenance staff should be provided with an area where theymay study maintenance instructions and complete maintenance records.

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GuidanceMaterial

4805(2)

Office Accommodation (MRP 145.A.25(b))11. It is acceptable to combine any or all of the office accommodation requirementsinto one office subject to the staff having sufficient room to carry out the assignedtasks.

12. It is not essential for the office accommodation required by ►this Regulation◄to be a purpose-built room or building, but it must ►provide◄ a working environmentthat permits personnel to carry out their work in an effective manner.

Regulation

4805(3)

Working Environment (MRP 145.A.25(c))

4805(3) The organization shall ensure that the working environment,including ►Air System◄ hangars, component workshopsand office accommodation, is appropriate for the task carriedout. Unless otherwise dictated by the particular taskenvironment, the working environment shall be such that theeffectiveness of personnel is not impaired.


4805(3)

Working Environment (MRP 145.A.25(c))Common AMC

13. Temperatures should be maintained such that personnel can carry out requiredtasks without undue discomfort.

14. Dust and any other airborne contamination should be kept to a minimum andnot be permitted to reach a level in the work task area where visible ►Air System and/or Air System◄ component surface contamination is evident. Where dust/otherairborne contamination results in visible surface contamination, all susceptiblesystems should be sealed until acceptable conditions are re-established.

15. Lighting should be such as to ensure each inspection and maintenance taskcan be carried out in an effective manner.

16. Noise should not distract personnel from carrying out inspection tasks. Whereit is impractical to control the noise source, such personnel should be provided withthe necessary personal equipment to stop excessive noise causing distraction duringinspection tasks.

17. The working environment for ►Air System◄ maintenance should be such thatthe particular maintenance or inspection task can be carried out without unduedistraction. Therefore, where the working environment deteriorates to anunacceptable level in respect of temperature, moisture, hail, ice, snow, wind, light,dust or other airborne contamination, the particular maintenance or inspection tasksshould be suspended until satisfactory conditions are re-established.

18. Due to the particular challenges of embarked aviation, specific risk mitigationmeasures should be put in place for ►Air System maintenance◄ in this environment.►◄



19. In derogation to Paragraphs ►13-17◄, an MMO may be required to conductmaintenance at austere locations or in harsh environments. ►◄ In such instances,the individual appointed as the relevant Maintenance Manager►2◄ or, in his absence,his authorized representative should put in place measures to mitigate the risk ofenvironmental conditions having a detrimental effect on maintenance standards suchthat risk remains ►◄ As Low As ►Reasonably◄ Practicable (ALARP) ►and Tolerable◄.

Additional AMC - AMOs only

20. Nil.

2 ►Refer to RA 4806(2) – Personnel Responsible to the Accountable Manager (Maintenance) (MRP 145.A.30(b)).◄

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GuidanceMaterial

4805(3)

Working Environment (MRP 145.A.25(c))Common GM

21. Specific maintenance tasks may require the application of specificenvironmental conditions different to ►the requirements at Paragraph 17◄; suchconditions will be identified in the ►Technical Information◄ and must be observed.


22. While Paragraph ►19◄ provides some flexibility for MMOs, the requirementsof ►this Regulation◄ must be adhered to as far as is practicable.


23. Nil.

Regulation

4805(4)

Storage Facilities (MRP 145.A.25(d))

4805(4) The organization shall ensure that secure storage facilitiesare provided for components, equipment, tools and materialthat ensure segregation of serviceable components andmaterial from unserviceable ►Air System◄ components,material, equipment and tools. The conditions of storageshall be in accordance with the instructions of themanufacturer, or other applicable MOD instructions, toprevent deterioration and damage of stored items. Access tostorage facilities shall be restricted to authorized personnel.


4805(4)

Storage Facilities (MRP 145.A.25(d))►Common AMC◄

24. Storage facilities for serviceable ►Air System◄ components should be clean,well ventilated and maintained within a suitable temperature range to minimize theeffects of condensation unless the use of ►Type Airworthiness Authority◄ approvedspecial-to-type containers permits storage in alternative conditions. Manufacturer’sstorage recommendations should be followed for those ►Air System◄ componentsidentified in such published recommendations ►◄.

25. Storage racks should be strong enough to hold ►Air System◄ componentsand provide sufficient support for large ►Air System◄ components such that thecomponent is not damaged, scratched or distorted during storage; protective mattingor equivalent may be used if necessary.

26. All ►Air System◄ components, wherever practicable, should remainpackaged in protective material to minimize damage and corrosion during storage.

►Additional AMC - MMO Only

27. In reference to paragraphs 24-26, MMOs operating at deployed or austerelocations should adhere to these requirements as far as practicable.

Additional AMC - AMO Only

28. Nil.◄

GuidanceMaterial

4805(4)

Storage Facilities (MRP 145.A.25(d))29. Nil.

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RA 4806 - Personnel Requirements (MRP 145.A.30)

Rationale An organization applying for ►MRP Part 145◄ approval is required to appoint anumber of positions within the organization, which each have specific responsibilities,and detail them in the Exposition. While Military Maintenance Organizations (MMOs)are not currently required to apply for approval, ►this RA◄ remains applicable.►Without the appointment of specific roles within a maintenance organization, personnel leadership and management of essential functions could be compromised,thus increasing the risk of a maintenance Occurrence, the organization operatingoutside its scope of work and potentially increasing Risk to Life. RA 4806 describesmaintenance organization roles that require competent individuals to fulfil theirresponsibilities and provide assurance that the organization is compliant with MRPPart 145.◄

Contents 4806(1): Accountable Manager (Maintenance) (MRP 145.A.30(a))

4806(2): Personnel Responsible to the Accountable Manager(Maintenance) (MRP 145.A.30(b))

4806(3): Quality Manager (MRP 145.A.30(c))

4806(4): Maintenance Man-hour Plan (MRP 145.A.30(d))

4806(5): Personnel Competences and Authorization (MRP145.A.30(e))

4806(6): ►Specialized Services◄ (MRP 145.A.30(f))

4806(7): ►Air System◄ Certifying Staff (Line Maintenance) (MRP145.A.30(g)) - Approved Maintenance Organizations (AMOs) only

4806(8): ►Air System◄ Certifying Staff (Base Maintenance) (MRP145.A.30(h)) - AMOs only

4806(9): Component Certifying Staff (MRP 145.A.30(i))

4806(10): Non-engineering Staff (MRP 145.A.30(j))

Regulation

4806(1)

Accountable Manager (Maintenance) (MRP 145.A.30(a))

4806(1) An Accountable Manager (Maintenance) shall be appointedwho has organizational authority for ensuring that allmaintenance is carried out ►in compliance with MRP Part 145◄. The Accountable Manager (Maintenance) shall:

a. Ensure that all necessary resources areavailable to accomplish maintenance►1 and◄,where applicable, support the organizationapproval.

b. Establish and promote the safety and qualitypolicy►2◄.

c. Demonstrate a basic understanding of ►MRP Part 145◄.


4806(1)

Accountable Manager (Maintenance) (MRP 145.A.30(a))Common AMC

1. Nil.

Additional AMC – MMOs only

2. Where the individual nominated as the Accountable Manager (Maintenance) is

1 ►Refer to RA 4815(2) – Procedures for Good Maintenance Practices (MRP 145.A.65(b)).2 Refer to RA 4815(1) – Organization Safety and Quality Policy (MRP 145.A.65(a)).◄

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4806(1)

not ►an Aviation Duty Holder (ADH)◄ or ►an ADH’s◄ Chief Air Engineer (CAE),►they◄ should ensure that ►ADH-facing◄ requirements►3◄ are satisfied in orderfor the relevant ►ADH(s)◄ to remain informed and accountable for the maintenanceof their ►Air Systems4.◄

Additional AMC – AMOs only

3. With regard to the Accountable Manager (Maintenance), it is normally intendedto mean the Chief Executive Officer of the AMO who, by virtue of position, has overall(including in particular financial) responsibility for running the organization. When theAccountable Manager (Maintenance) is not the Chief Executive Officer, the MAAshould be assured that such an Accountable Manager (Maintenance) has directaccess to the Chief Executive Officer on safety related issues and has sufficient‘maintenance funding’ allocation.

GuidanceMaterial

4806(1)

Accountable Manager (Maintenance) (MRP 145.A.30(a))Common GM

4. Nil.

Additional GM – MMOs only

5. The individual appointed as the Accountable Manager (Maintenance) for anMMO may be ►an ADH, an ADH’s◄ CAE or an alternative individual with suitableseniority, knowledge and authority to satisfy the requirements of ►this Regulation◄.

Additional GM – AMOs only

6. The Accountable Manager (Maintenance) may be the Accountable Manager(Maintenance) for more than one AMO and is not necessarily required to beknowledgeable on technical matters, as the Maintenance Organization Exposition(MOE) defines the maintenance standards.

7. Where an AMO holds both an approval under ►MRP Part 145◄ and aEuropean Aviation Safety Agency (EASA) Part 145 approval, the post title ofAccountable Manager (Maintenance) may be shortened to ‘Accountable Manager’ forclarity if required. However, this appointment is not to be confused with theAccountable Manager (Military Flying)►5◄.

Regulation

4806(2)

Personnel Responsible to the Accountable Manager (Maintenance)(MRP 145.A.30(b))

4806(2) The organization shall nominate a person or group ofpersons, whose responsibilities include ensuring that theorganization complies with ►MRP Part 145◄. Suchperson(s) shall ultimately be responsible to the AccountableManager (Maintenance).

a. The person(s) nominated shall represent themaintenance management structure of theorganization and be responsible for all functionsspecified in ►MRP Part 145◄.

b. The person(s) nominated shall be identified andtheir credentials submitted►6◄ using an MAAForm 4 (AMOs only).

c. The person(s) nominated shall be able todemonstrate relevant knowledge, backgroundand satisfactory experience related to ►Air

3 ►Refer to RA 1020(4) – Responsibilities of ADH-Facing Organizations.4 Refer to RA 1020(2) – ADH Nomination.5 Refer to RA 1024 – Accountable Manager (Military Flying).6 The MAA Form 4 can be found on the Maintenance Approved Organization Scheme (MAOS) Approvals page of the MAA Website(www.gov.uk/maa).◄

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Regulation

4806(2)

System◄ or component maintenance anddemonstrate a working knowledge of ►MRP Part 145◄.

d. Procedures shall make clear who deputizes forany particular person in the case of lengthyabsence of the said person.


4806(2)

Personnel Responsible to the Accountable Manager (Maintenance)(MRP 145.A.30(b))

Common AMC

8. Nil.


9. An MMO should have a Quality Manager and, depending on the type and sizeof MMO, one or more ►Air System◄ Maintenance Manager(s) and/or WorkshopManager(s) who will hold responsibility for the maintenance output of their relevantareas.

10. Individuals to be identified as an MMO’s ►Air System◄ Maintenance Manageror Workshop Manager should be of sufficient seniority ►and be appropriately authorized7.◄

11. The individuals identified in ►this Regulation◄ should have direct access tothe Accountable Manager (Maintenance). This does not necessarily require theAccountable Manager (Maintenance) to be the individual’s direct reporting officer forappraisal purposes.


12. ►An AMO◄ should have, dependent upon the extent of approval, a BaseMaintenance Manager, a Line Maintenance Manager, a Workshop Manager and aQuality Manager, all of whom should report to the Accountable Manager(Maintenance) except in a small AMO, where any one manager may also be theAccountable Manager (Maintenance).

13. The Base Maintenance Manager should be responsible for ensuring that allmaintenance required to be carried out in the hangar, plus any fault rectificationcarried out during base maintenance, is carried out to the ►required1◄ design andquality standards ►◄. The Base Maintenance Manager should also be responsiblefor any corrective action resulting from the quality compliance monitoring►8◄.

14. The Line Maintenance Manager should be responsible for ensuring that allmaintenance required to be carried out on the line, including line fault rectification, iscarried out to the ►required1◄ standards ►◄ and also be responsible for anycorrective action resulting from the quality compliance monitoring►8◄.

15. The Workshop Manager should be responsible for ensuring that all work on►Air System◄ components is carried out to the ►required1◄ standards ►◄ andalso responsible for any corrective action resulting from the quality compliancemonitoring►8◄.

16. Notwithstanding the example post titles detailed here, the organization mayadopt any title for the foregoing managerial positions but AMOs should identify to theMAA the titles and persons chosen to carry out these functions on submission of theMAA Form 4 and in the MOE.

17. Where an organization chooses to appoint managers for all or any combinationof the identified ►MRP Part 145◄ functions because of the size of the undertaking,these managers should report through either the Base Maintenance Manager, LineMaintenance Manager, Workshop Manager or Quality Manager, as appropriate, to the

7 ►Refer to RA 1006 – Delegation of Engineering Authorizations and RA 4806(5) – Personnel Competences and Authorization (MRP 145.A.30(e)).8 Refer to RA 4815(3) – Quality System (MRP 145.A.65(c)).◄

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4806(2)

Accountable Manager (Maintenance).

18. Certifying staff may report to any of the managers specified, depending uponwhich type of control the ►AMO◄ uses (for example, licensed engineers/independentinspection/dual function supervisors etc); however, the quality compliance monitoringstaff►9◄ should remain independent.

GuidanceMaterial

4806(2)

Personnel Responsible to the Accountable Manager (Maintenance)(MRP 145.A.30(b))Common GM

19. Dependent upon the size of the organization, the ►MRP Part 145◄ functionsmay be subdivided under individual managers or combined in any number of ways.

20. ►◄


21. Nil.


22. ►Nil.◄

Regulation

4806(3)

Quality Manager (MRP 145.A.30(c))

4806(3) The Accountable Manager (Maintenance)►10◄ shall appointa person with responsibility for monitoring the quality system,including the associated feedback system►8◄. Theappointed person shall have direct access to theAccountable Manager (Maintenance) to ensure that theAccountable Manager (Maintenance) is kept properlyinformed on quality and compliance matters.


4806(3)

Quality Manager (MRP 145.A.30(c))23. Monitoring the quality system should include requesting remedial andpreventive action, ensuring full root cause analysis, as necessary by the AccountableManager (Maintenance) and the nominated persons►11◄.

GuidanceMaterial

4806(3)

Quality Manager (MRP 145.A.30(c))24. Nil.

Regulation

4806(4)

Maintenance Man-hour Plan (MRP 145.A.30(d))

4806(4) The organization shall have a maintenance man-hour plandemonstrating that the organization has the workforcecapacity and competence to carry out the scope of itsapproval, and that the workforce is of sufficient quantity andappropriate composition to plan, perform, supervise, inspectand quality monitor the organization. In addition, theorganization shall have a procedure to reassess workintended to be carried out when actual staff availability is lessthan the planned staffing level for any particular work shift orperiod.

9 ►Refer to RA 4806(3) – Quality Manager (MRP 145.A.65(c)).10 Refer to RA 4806(1) – Accountable Manager (Maintenance) (MRP 145.A.30(a)).11 Refer to RA 4806(2) – Personnel Responsible to the Accountable Manager (Maintenance) (MRP 145.A.30(b)).◄

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4806(4)

Maintenance Man-hour Plan (MRP 145.A.30(d))Common AMC

25. Nil.


26. Where an MMO utilizes contracted staff, the relevant Maintenance Managershould ensure that they adhere to the appropriate Regulations and procedures. ►◄

27. In cases where an MMO is required to deviate from the maintenance man-hourplan to meet a temporary increase in the required output (for example, in support of anincrease in flying task), the relevant Maintenance Manager should report ►the deviation◄ to the Accountable Manager (Maintenance) in order to assess any AirSafety implications and, if necessary, establish appropriate mitigation strategies.Likewise, if adequate staffing levels cannot be maintained, the Accountable Manager(Maintenance) should consider the need for a commensurate reduction inmaintenance tasking, in discussion with the ►ADH◄ chain where appropriate.


28. The organization should demonstrate that it has appropriate workforce capacityby meeting either one, or both, of the conditions at Paragraphs ►28.a and 28.b◄:

a. Employ or contract staff such that at least half the staff who performmaintenance in each workshop, hangar or flight line on any shift are employedto ensure organizational stability (definitions of ‘employed’ and ‘contracted’ arecontained within the Guidance Material to this Regulation).

b. Ensure organizational stability by demonstration in the maintenance man-hour plan of the organization’s active assessment and management of:

(1) Staff experience.

(2) Staff time in post.

(3) Supervision ratios.

(4) Staff turnover rates which are to be below 50% of the staff whoperform maintenance in each workshop, hangar or flight line on any shiftin a rolling 12-month period (method of calculation is contained within theGuidance Material to this Regulation).

29. Contract staff, being part time or full time should be made aware that whenworking for the organization they are subjected to compliance with the organization’sprocedures specified in the MOE relevant to their duties.

30. The maintenance man-hour plan should take into account any maintenancecarried out on ►Air Systems and/or◄ components from outside the UK and shouldalso take into account all work carried out outside the scope of the ►MRP Part 145◄approval.

31. The maintenance man-hour plan should relate to the anticipated maintenanceworkload except that when the organization cannot predict such workload, due to theshort-term nature of its contracts, then such plan should be based upon the minimummaintenance workload needed for commercial viability.

32. In the case of ►Air System◄ base maintenance, the maintenance man-hourplan should relate to the ►Air System◄ hangar visit plan►12◄.

33. The quality monitoring compliance function man-hours should be sufficient tomeet the ►Quality System requirement8◄. Where quality-monitoring staff performother functions, the time allocated to such functions should be taken into account indetermining quality monitoring staff numbers.

34. The maintenance man-hour plan should be reviewed at least every 3 monthsand updated when necessary.

35. Significant deviation from the maintenance man-hour plan should be reported

12 ►Refer to RA 4805(1) – Facility Requirements (MRP 145.A.25(a)).◄

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4806(4)

through the departmental manager to the Quality Manager and the AccountableManager (Maintenance) for review.

GuidanceMaterial

4806(4)

Maintenance Man-hour Plan (MRP 145.A.30(d))Common GM

36. The ‘maintenance man-hour plan’ is a document or set of documents thatdemonstrate what the organization is able to achieve with the actual manpowerresource available and, where applicable for ‘line’ or ‘forward’ ►Air System◄maintenance organizations, the ►Air System◄ flying hours that can be madeavailable as a result of this maintenance.


37. An MMO’s maintenance man-hour plan may be developed and held by a highermilitary formation, but individual MMOs will be expected to have access to, and anunderstanding of, their plan.

38. An MMO’s maintenance man-hour plan may be supplemented by severalseparate plans to cater for differing circumstances, for example, ►Air System◄maintenance organizations supporting expeditionary operations or exercises.However, in all instances, the plan must demonstrate that staff levels are adequate tosafely perform the functions specified in ►this Regulation◄.


39. For the purpose of ►this Regulation,◄ ‘employed’ means the person is directlyemployed by the maintenance organization approved under ►MRP Part 145◄ or theperson is a contractor who has been engaged in one role for a minimum of 6 months.‘Contracted’ means the person is employed by another organization and contracted bythat organization to the maintenance organization approved under ►MRP Part 145◄(with the exception of the 6 months in one role criterion described above, where thecontracted person is considered to be ‘employed’).

40. In the case of MOD/industrial partnered support arrangements in an AMO, theMOD element of the organization will be considered, for the purpose of this clause, aspart of the AMO’s ‘employed’ workforce.

41. Turnover rate is calculated as the number of persons who departed divided bythe average number of persons who performed maintenance, over the rolling 12-month period.

42. ‘Maintenance workload’ includes all necessary work such as, but not limited to,planning, maintenance record checks, production of worksheets/cards in paper orelectronic form, accomplishment of maintenance, inspection and the completion ofmaintenance records.

43. Significant deviation means more than a 25% shortfall in available man-hoursduring a calendar month for any one of the functions specified in ►this Regulation◄.

Regulation

4806(5)

Personnel Competences and Authorization (MRP 145.A.30(e))

4806(5) The organization shall establish ►the competence◄ andcontrol the ►authorization◄ of personnel involved in anymaintenance, management and/or quality audits. In additionto the necessary expertise related to the job function,competence shall include an understanding of theapplication of Human Factors and Human Performanceissues to that person’s function in the organization. AMOsshall detail the procedure for such competence assessmentand the standard to be achieved in their MOE.

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4806(5)

Personnel Competences and Authorization (MRP 145.A.30(e))Common AMC

44. Nil.


Competence Assessment and Authorization

45. All personnel who maintain ►Air Systems, Air System components◄ andassociated equipment, including contractor staff, should be trained, assessed ascompetent►13◄ and authorized ►for specific tasks and roles, including, but not limited to:◄

a. All personnel required to sign maintenance documentation►◄, notingthe additional requirements detailed ►◄ in ►Paragraphs 46 and 47◄.

b. Self-supervisors►◄.

c. Elementary self-supervisors►◄.

d. Personnel using Ground Maintenance Systems►◄.

e. Personnel required to carry out ground runs on engines and/or►Auxiliary Power Units◄, whether installed in ►Air Systems◄, in an enginetraining facility, or in an uninstalled engine test facility►◄.

f. ►Aircraft Ground Engineers, in the sense of those individuals deployed with Air Systems to undertake a wide range of Air System type flight servicingand maintenance activities with minimal technical support.

g. Survival Equipment maintenance staff.

h. Ground Support Equipment maintenance staff.◄

46. The ►individuals conducting a◄ competence assessment of personnelemployed in ►Air System◄ maintenance should ensure that ►those being assessed◄ have received an appropriate level of training or familiarization on the►Air System◄ type before being authorized to undertake maintenance or servicingactivities on that ►Air System◄ type:

a. For individuals receiving certification or supervisory authorizations►14◄

(‘3rd signature’ and ‘2nd signature’►15◄).

b. Individuals receiving an authorization to undertake the duties of ‘1stsignature’►15◄, should first receive an element of type-specific training and/orfamiliarization appropriate to the scope of their authorization. Good practice isfor such training to be that which leads to the award of a formal qualification inthe ►Air System◄ type; consideration to introducing this qualifying criteria for‘1st signature’ should be given by the organization.

47. The ►individuals conducting a◄ competence assessment of personnelemployed in ►Air System◄ component/equipment maintenance should ensure that►those being assessed◄ have received training and/or familiarization on the relevantcomponent(s)/equipment(s) appropriate to their level of authorization.

48. Engineering authorizations should be recorded using ►a system that is auditable.◄

49. Personnel within an MMO who are required to undertake maintenance on ►Air Systems◄ from another Service or nation should only do so if appropriatelyauthorized►◄.


Competence Assessment and Authorization

50. The ►MOE◄ procedure should require, amongst others, that planners,mechanics, specialized services staff, supervisors and certifying staff are assessed for

13 ►Refer to RA 1002 – Airworthiness Competent Persons.14 Refer to RA 4807(2) – Certification and Supervisory Authorizations (MRP 145.A.35(b)).15 Refer to RA 4801 – Certifying Staff.◄

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4806(5)

competence by 'on the job' evaluation and/or by examination relevant to theirparticular job role within the organization, before unsupervised work is permitted.

51. A record of the qualification and competence assessment should be kept.

52. The maintenance organization should have in place procedures for:

a. Ensuring that all personnel are competent by virtue of their training andexperience for the tasks on which they are employed.

b. Ensuring staff are trained, assessed and authorized for specific tasks.

c. Providing initial and continuation training by a suitable organization.

d. Maintaining a record system detailing the training and qualification of allstaff.

e. Maintaining a record of all personnel authorizations.

53. The ►MOE◄ procedure should include a method of assessing the trainingand experience of personnel joining the organization and should include, as aminimum:

a. Verification of any qualifications and experience.

b. A formal technical interview.

c. A period of on the job assessment.

54. Adequate initial and recurrent training should be provided and recorded toensure continued competence.

55. To assist in the assessment of competence, job descriptions are recommendedfor each job role in the organization. The competence assessment should establishthat:

a. Planners are able to interpret maintenance requirements intomaintenance tasks, and have an appreciation that they have no authority todeviate from the Technical Information.

b. Mechanics are able to carry out maintenance tasks to any standardspecified in the Technical Information and will notify supervisors of mistakesrequiring rectification to re-establish required maintenance standards.

c. Specialized services staff are able to carry out specialized maintenancetasks to the standard specified in the Technical Information and will both informand await instructions from their supervisor in any case where it is not possibleto complete the specialized maintenance in accordance with the TechnicalInformation.

d. Supervisors are able to ensure that all required maintenance tasks arecarried out and where not completed or where it is evident that a particularmaintenance task cannot be carried out to the Technical Information, then suchproblems will be reported to the ►Quality Manager9◄ for appropriate action. Inaddition, for those supervisors who also carry out maintenance tasks, that theyunderstand such tasks should not be undertaken when incompatible with theirmanagement responsibilities.

e. Certifying staff are able to determine when the ►Air System or Air System◄ component is serviceable and when it is unserviceable.

56. Planners, specialized services staff, supervisors and certifying staff shouldhave a knowledge of organization procedures relevant to their particular role in theorganization. The aforementioned list is not exclusive and may include othercategories of personnel.

57. Quality audit staff should monitor compliance with ►MRP Part 145◄,identifying non-compliance in an effective and timely manner in order that theorganization may remain in compliance with ►MRP Part 145◄.

Human Factors Training

58. In respect to the understanding of the application of Human Factors and HumanPerformance issues, maintenance, management, and quality audit personnel in AMOs

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4806(5)

should be assessed for the need to receive initial Human Factors training►16◄, but inany case all maintenance, management, and quality audit personnel in AMOs shouldreceive Human Factors continuation training. As a minimum, this should concern:

a. Post-holders, managers and supervisors.

b. Certifying staff, technicians and mechanics.

c. Technical support personnel, such as, planners, engineers and technicalrecord staff.

d. Quality control/assurance staff.

e. Specialized services staff.

f. Human Factors staff/Human Factors trainers.

g. Store department staff and purchasing department staff.

h. Ground equipment operators.

i. Contract staff in the above categories.

59. ►◄

60. Depending on the result of the ►competence assessment◄ as specified inParagraph ►55◄, initial training should be provided to personnel within 6 months ofjoining the maintenance organization. Consideration should be given to trainingtemporary staff soon after they join the organization in order to recognise the durationof their employment.

61. Personnel being recruited from another AMO and temporary staff should beassessed for the need to receive any additional Human Factors training to meet theHuman Factors training standard of the new AMO.

62. The purpose of Human Factors continuation training is primarily to ensure thatstaff remain current in terms of Human Factors and also to collect feedback on HumanFactors issues. Training should have the involvement of the quality department.There should be a procedure to ensure that feedback is formally passed from thetrainers to the quality department to initiate action where necessary.

63. Human Factors continuation training should be of an appropriate duration ineach 2-year period in relation to relevant quality audit findings and otherinternal/external sources of information available to the organization on Human Errorsin maintenance.

64. Human Factors training should be conducted by the AMO itself, or independenttrainers, or a suitable training organization.

65. The Human Factors training procedures should be specified in the MOE.

GuidanceMaterial

4806(5)

Personnel Competences and Authorization (MRP 145.A.30(e))Common GM

66. ‘Human Factors’ is defined in MAA02. ‘Human Performance’ means humancapabilities and limitations which have an impact on the safety and efficiency ofaeronautical operations.

67. Initial Human Factors training ►is to◄ cover ►◄ the topics of the trainingsyllabus specified in Annex A to this Regulation, either as a dedicated course or elseintegrated within other training. The syllabus ►may be◄ adjusted to reflect theparticular nature of both the organization and the functions within the organization.

68. ►For all relevant personnel in the Defence Air Environment, Human Factors training requirements16 must be followed.

Maintenance of Electrical Wiring Interconnection Systems (EWIS)

69. Training must be provided to avoid indiscriminate routing and splicing of wireand to provide comprehensive knowledge of critical design features of systems that

16 ►Refer to RA 1440 – Air Safety Training.◄

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GuidanceMaterial

4806(5)

must be managed in a specific manner such as, but not limited to, fuel systems andsystems subject to TEMPEST restrictions.◄


70. ►For the servicing of Air Systems belonging to one nation by personnel of a different nation, Commands may negotiate cross-servicing agreements appropriate totheir operational commitments.◄


71. Nil.

Regulation

4806(6)

►Specialized Services◄ (MRP 145.A.30(f))

4806(6) The organization shall ensure that►:◄

a. ►Personnel◄ who carry out and/or controlContinued Airworthiness Non-Destructive►Testing◄ (NDT) of ►Air System◄ structuresand/or components are appropriately qualified►for the particular NDT◄ in accordance with►a recognized standard◄.

b. Personnel who carry out any other specializedtask shall be appropriately qualified inaccordance with officially recognized standards.


4806(6)

►Specialized Services◄ (MRP 145.A.30(f))Common AMC

72. ►Personnel who carry out and/or control NDT of Air System structures and/or components should be appropriately qualified in accordance with BS EN 417917, orequivalent.

73. Any such personnel who intend to carry out and/or control NDT for which theywere not qualified prior to the effective date of MRP Part 145, should qualify for suchNDT in accordance with BS EN 4179, or equivalent.◄


74. ►Nil.◄


75. Notwithstanding the general references in ►BS◄ EN 4179 to a nationalaerospace NDT board, all examinations and training should be conducted bypersonnel or organizations under the general control of such a board. ►The referenced standards, methods, training, experience levels and procedures should bespecified in the MOE.◄

76. An AMO that carries out NDT should establish NDT specialist qualificationprocedures, detailed in the MOE and accepted by the MAA.

77. Boroscoping and other techniques such as delamination coin tapping are non-destructive inspections rather than NDT. Notwithstanding such differentiation, AMOsshould establish ►a procedure in their MOE◄, accepted by the MAA, to ensure thatpersonnel who carry out and interpret such inspections are properly trained andassessed for their competence with the process. ►Organizations undertaking non-destructive inspections do not require a D1 class rating approval18.◄

78. ►◄

79. ►◄

17 ►BS EN 4179 – Aerospace series. Qualification and approval of personnel for non-destructive testing.18 Refer to RA 4804 – Terms of Approval (MRP 145.A.20) - Approved Maintenance Organizations (AMOs) only.◄

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GuidanceMaterial

4806(6)

►Specialized Services◄ (MRP 145.A.30(f))Common GM

80. 'Continued Airworthiness NDT’ means such testing specified by ►Technical Information◄ for the purpose of determining the continued fitness of the product tooperate safely.

81. ►◄

82. Notwithstanding the fact that ►the organization’s Responsible Level 3◄ maybe qualified to establish and authorize methods, techniques, etc, this does not permitsuch personnel to deviate from methods and techniques published by the ►Type Airworthiness Authority◄ in the form of ►Technical Information◄, such as in NDTmanuals or Service Bulletins, unless the manual or Service Bulletin expressly permitssuch deviation.

83. ‘Particular NDT’ means any one or more of the following:

a. ►Penetrant testing.

b. Magnetic testing.

c. Eddy current testing.

d. Ultrasonic testing.

e. Radiographic testing.

f. Thermographic testing.

g. Shearographic testing.◄


84. ►Personnel will become qualified on the successful completion of NDT training, consolidation and examinations appropriate to the level of NDT qualification beingsought.

85. Authorization to conduct NDT must be withdrawn if an individual’s qualificationbecomes invalid. The relevant authorizing individual may re-authorize personnel oncethe lapsed qualification element(s) has been reassessed and certified as beingcomplete. A Responsible Level 3 can advise on the re-authorization action required.Under exceptional or operational requirements, the relevant authorizing individual mayextend the validity of an NDT authorization to meet a specific need.

86. NDT authorizations must be recorded19.◄

87. When MMOs do not have the necessary organic NDT capability, additionalservices may be requested ►from organizations (such as the Front Line Command) that are specifically authorized to task the relevant NDT organizations◄.


88. Nil.

Regulation

4806(7)

►Air System◄ Certifying Staff (Line Maintenance) (MRP145.A.30(g)) - Approved Maintenance Organizations (AMOs) only

4806(7) An AMO undertaking ►Air System◄ line maintenance shallhave appropriate certifying staff qualified on each relevant►Air System◄ type and, where applicable, support staff,suitably authorized for line maintenance activities►20◄.

19 ►Refer to RA 4806(5) – Personnel Competences and Authorization (MRP 145.A.30(e)).20 Refer to RA 4807 – Certifying Staff and Support Staff (MRP 145.A.35).◄

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4806(7)

►Air System◄ Certifying Staff (Line Maintenance) (MRP145.A.30(g)) - Approved Maintenance Organizations (AMOs) only89. In the case of an AMO using certifying staff licensed in accordance with EASAPart 66, a suitable number of appropriate ►Air System◄ type-qualified Category B1and B2 certifying staff should be employed and authorized►20◄. The use ofappropriate ►Air System◄ type-qualified staff qualified as Category A to conductminor scheduled line maintenance and simple Fault rectification should not replacethis requirement for Category B1 and B2 staff.

90. In the case of an AMO adopting ►military◄ processes, including the use of theMOD Form 700 as the ►Air System◄ technical log, and the ►associated◄authorization framework►◄, a suitable number of personnel should be employedwho are authorized to:

a. Undertake the responsibilities of ‘1st signature’, ‘2nd signature’ and ‘3rd

signature’ for maintenance tasks►15◄.

b. Undertake and coordinate flight servicing activities►◄.

c. Endorse the Certification of ►Air System Release21◄.

GuidanceMaterial

4806(7)

►Air System◄ Certifying Staff (Line Maintenance) (MRP145.A.30(g)) - Approved Maintenance Organizations (AMOs) only91. The following Guidance Material is applicable to AMOs employing certifyingstaff licensed in accordance with EASA Part 66 in a line maintenance environment:

a. ►‘Minor◄ scheduled line maintenance’ means any minor scheduledinspection/check up to and including a weekly check specified in the approvedAircraft Maintenance Programme►22◄ (or equivalent), in a line maintenanceenvironment►23◄.

b. Where the AMO uses appropriately authorized Category A certifying staffto carry out minor scheduled line maintenance and simple fault rectification,Category B1 and B2 staff need not always be present at the line station duringsuch activity.

c. The following list contains typical tasks that a Category A certifying staffcould carry out after appropriate task training, as part of minor scheduled linemaintenance or simple fault rectification:

(1) Replacement of wheel assemblies and brake units.

(2) Replacement of simple crew escape and emergency equipment(excluding ►Air System◄ Assisted Escape Systems (AAES)).

(3) Replacement of internal and external lights, filaments and flashtubes.

(4) Replacement of windscreen wiper blades.

(5) Replacement of seats (excluding AAES), seat belts and harnesses.

(6) Closing of cowlings and re-fitment of quick access inspectionpanels.

(7) Replacement of static wicks / static dischargers.

(8) Replacement of ►Air System◄ batteries.

(9) Routine lubrication and replenishment of fluids and gases.

21 ►Refer to RA 4812 – Certification of Air System Release and Component Release (MRP 145.A.50).22 Refer to RA 4961 – Aircraft Maintenance Programme (MRP Part M Sub Part C).23 Refer to RA 4802(1) – Scope of the MRP Part 145 (MRP 145.A.10(a)).◄

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Regulation

4806(8)

►Air System◄ Certifying Staff (Base Maintenance) (MRP145.A.30(h)) - AMOs only

4806(8) An AMO undertaking ►Air System◄ base maintenanceshall have appropriate certifying staff qualified on eachrelevant ►Air System◄ type and, where applicable, supportstaff, suitably authorized for base maintenance activities►20◄.


4806(8)

►Air System◄ Certifying Staff (Base Maintenance) (MRP145.A.30(h)) - AMOs only92. In the case of an AMO using certifying staff licensed in accordance with EASAPart 66 to conduct base maintenance, a suitable number of appropriate ►Air System◄ type-qualified Category C certifying staff should be employed andauthorized►19◄. In addition, the AMO should have sufficient ►Air System◄ type-qualified staff qualified as Category B1 and B2 and authorized►20◄ to support theCategory C certifying staff. In this instance, the following process should be followed:

a. The Category B1 and B2 support staff should ensure that all relevanttasks or inspections have been carried out to the required standard before theCategory C certifying staff endorses the Certification of ►Air System◄Release.

b. The Category C certifying staff should ensure compliance with sub-Paragraph ►92a◄ and that all work required by the customer has beenaccomplished during the particular work package. They should also assess theimpact of any work not carried out with a view to either requiring itsaccomplishment or agreeing with the ►Military Continuing Airworthiness Management Organization◄ or MOD Contracting Authority to defer such workto another specified check or time limit.

93. In the case of an AMO adopting ►military◄ processes, including the use of theMOD Form 700 as the ►Air System◄ technical log, and the ►associated◄authorization framework ►◄, a suitable number of personnel should be employedwho are authorized to:

a. Undertake the responsibilities of ‘1st signature’, ‘2nd signature’ and ‘3rd

signature’ for maintenance tasks►15◄.

b. Endorse the Certification of ►Air System Release21◄.

GuidanceMaterial

4806(8)

►Air System◄ Certifying Staff (Base Maintenance) (MRP145.A.30(h)) - AMOs only94. Nil.

Regulation

4806(9)

Component Certifying Staff (MRP 145.A.30(i))

4806(9) Any organization undertaking component maintenance shallhave appropriately qualified certifying staff, to be suitablyauthorized for component maintenance activities►20◄.


4806(9)

Component Certifying Staff (MRP 145.A.30(i))95. Nil.

GuidanceMaterial

4806(9)

Component Certifying Staff (MRP 145.A.30(i))96. Nil.

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Regulation

4806(10)

Non-engineering Staff (MRP 145.A.30(j))

4806(10) Non-engineering staff, including Aircrew, shall only bepermitted to undertake ►Air System◄ maintenance and/orflight servicing when authorized. Where applicable, AMOsshall detail the procedure to grant such authorization in theMOE.


4806(10)

Non-engineering Staff (MRP 145.A.30(j))Common AMC

97. Nil.


98. Aircrew required to undertake maintenance and/or flight servicing tasks shouldundertake a competence assessment prior to authorization. ►◄

99. ►◄

100. Movements personnel required to operate ►◄ systems in the process ofloading or unloading ►Air Systems◄ should be ►appropriately◄ trained andauthorized ►◄.


101. The ►MOE◄ procedure should ensure that the scope of permitted ►Air System◄ maintenance and/or flight servicing is specified in the authorization.

GuidanceMaterial

4806(10)

Non-engineering Staff (MRP 145.A.30(j))►Common GM◄

102. Nil.

►Additional GM – MMOs only

103. The requirements24 for the authorization of personnel who undertakemaintenance tasks on Remotely Piloted Air Systems (RPAS) must be adhered to.


104. Nil.◄

24 ►Refer to RA 4050 – Continuing Airworthiness of Remotely Piloted Air Systems.◄

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ANNEX A

HUMAN FACTORS TRAINING SYLLABUS (AMOs ONLY)

1. The training syllabus below identifies the topics and sub-topics to be addressed during HumanFactors training for personnel in an AMO. The maintenance organization may combine, divide or changethe order of any subject of the syllabus to suit its own needs, so long as all subjects are covered to a levelof detail appropriate to the organization and its personnel. Some of the topics may be covered in separatetraining (health and safety, management, supervisory skills, etc.), in which case duplication of training isnot necessary.

2. Where possible, practical illustrations and examples will be used, especially accident and incidentreports. Topics will also need to be related to maintenance engineering where possible; too muchunrelated theory will need to be avoided.

3. Required training topics and sub-topics ►to be considered◄ are as follows:

a. General/Introduction to Human Factors:

(1) Need to address Human Factors.

(2) Statistics.

(3) Incidents.

b. Safety Culture/Organizational factors.

c. Human Error:

(1) Error models and theories.

(2) Types of errors in maintenance tasks.

(3) Violations.

(4) Implications of errors.

(5) Avoiding and managing errors.

(6) Human reliability.

d. Human performance & limitations:

(1) Vision.

(2) Hearing.

(3) Information-processing.

(4) Attention and perception.

(5) Situational awareness.

(6) Memory.

(7) Claustrophobia and physical access.

(8) Motivation.

(9) Fitness/Health.

(10) Stress.

(11) Workload management.

(12) Fatigue.

(13) Alcohol, medication, drugs.

(14) Physical work.

(15) Repetitive tasks/complacency.

e. Environment:

(1) Peer pressure.

(2) Stressors.

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(3) Time pressure and deadlines.

(4) Workload.

(5) Shift Work.

(6) Noise and fumes.

(7) Illumination.

(8) Climate and temperature.

(9) Motion and vibration.

(10) Complex systems.

(11) Hazards in the workplace.

(12) Lack of manpower.

(13) Distractions and interruptions.

f. Procedures, information, tools and practices:

(1) Visual Inspection.

(2) Work logging and recording.

(3) Procedure – practice/mismatch/norms.

(4) Technical documentation – access and quality.

g. Communication:

(1) Shift/Task handover.

(2) Dissemination of information.

(3) Cultural differences.

h. Teamwork:

(1) Responsibility.

(2) Management, supervision and leadership.

(3) Decision making.

i. Professionalism and integrity:

(1) Keeping up to date/currency.

(2) Error provoking behaviour.

(3) Assertiveness.

j. Organization’s HF program:

(1) Reporting errors.

(2) Disciplinary policy.

(3) Error investigation.

(4) Action to address problems.

(5) Feedback.

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RA 4807 - Certifying Staff and Support Staff (MRP 145.A.35)

Rationale ►Within a maintenance organization, those personnel required to undertakemaintenance tasks and those that certify successful completion of maintenance arerequired1 to be Suitably Qualified and Experienced Personnel (SQEP). Without asystem to ensure that staff employed in the maintenance of Air Systems andcomponents are competent, personnel leadership and management of essentialfunctions could be compromised. This could increase the risk of: maintenanceOccurrences; the organization operating outside its scope of work; and potentiallyincreasing Risk to Life. RA 4807 details the requirements for maintenanceorganizations to ensure that certifying staff2 and support staff are suitably qualified,experienced, assessed as competent and appropriately authorized to undertake theirduties.◄

Contents 4807(1): Staff Knowledge (MRP 145.A.35(a))

4807(2): Certification and Supervisory Authorizations (MRP145.A.35(b))

4807(3): Staff Experience Requirements (MRP 145.A.35(c))

4807(4): Staff Continuation Training (MRP 145.A.35(d))

4807(5): Continuation Training Programme (MRP 145.A.35(e))

4807(6): Certifying Staff Competence Assessment (MRP145.A.35(f))

4807(7): Issue of Certification Authorization (MRP 145.A.35(g))

4807(8): Certification Authorization Codes (MRP 145.A.35(h))

4807(9): Responsibility for Issuing Certification Authorization(MRP 145.A.35(i))

4807(10): Record of Staff (MRP 145.A.35(j))

4807(11): Provision to Staff of a Copy of Their Authorizations (MRP145.A.35(k))

4807(12): Requirement to Produce Certification Authorization (MRP145.A.35(l))

4807(13): Minimum Age of Certifying Staff (MRP 145.A.35(m))

Regulation

4807(1)

Staff Knowledge (MRP 145.A.35(a))

4807(1) In addition to the appropriate ►certifying staff◄ requirements►3◄, the organization shall ensure thatcertifying staff and support staff have an adequateunderstanding of the relevant ►Air Systems◄ and/orcomponents to be maintained, together with the associatedorganization procedures.


4807(1)

Staff Knowledge (MRP 145.A.35(a))Common AMC

1. ►The organization should hold copies of all documents that attest toqualification, and to recent experience.◄

1 ►Refer to RA 1002 – Airworthiness Competent Persons.2 Refer to RA 4801 – Certifying Staff.3 Refer to RA 4806(7) – Air System Certifying Staff (Line Maintenance) (MRP 145.A.30(g)) and RA 4806(8) – Air System CertifyingStaff (Base Maintenance) (MRP 145.A.30(h)).◄

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4807(1)

Additional AMC – Military Maintenance Organizations (MMOs) only

2. Nil.

Additional AMC – Approved Maintenance Organizations (AMOs) only

3. In the case of certifying staff, this should be accomplished before the issue orre-issue of certification authorization.

4. ►◄

GuidanceMaterial

4807(1)

Staff Knowledge (MRP 145.A.35(a))Common GM

5. ‘Adequate understanding of the relevant ►Air Systems◄ and/or components tobe maintained together with the associated organization procedures’ means that theperson has received training and has relevant maintenance experience on the producttype and associated organization procedures such that the person understands howthe product functions and what the more common Faults with associatedconsequences are.


6. Nil.


7. ‘Certification authorization’ means the authorization issued to certifying staff bythe organization and which specifies the fact that they may endorse the ►Certification of Air System Release4◄ within the limitations stated in such authorization on behalfof the organization.

Regulation

4807(2)

Certification and Supervisory Authorizations (MRP 145.A.35(b))

4807(2) Excepting those cases listed in RA 4806(10) ►– Non-engineering Staff◄ (MRP 145.A.30(j)) the organization shallonly issue certification and supervisory authorizations tocertifying and support staff in accordance with the followingcriteria:

(a) Authorization shall relate to the basic categories orsubcategories for which they are qualified.

(b) Authorization shall be limited to those ►Air System◄ types on which they have been qualified.

(c) Where certification authorization is being granted toindividuals holding an aircraft maintenance licence incompliance with European Aviation Safety Agency(EASA) Annex III (Part 66), such authorization shallonly be issued subject to the aircraft maintenancelicence remaining valid throughout the validity periodof the authorization and the certifying staff remainingin compliance with their licence.


4807(2)

Certification and Supervisory Authorizations (MRP 145.A.35(b))Common AMC

8. The organization should only issue the certification authorization when satisfiedthat compliance has been established with the appropriate clauses of ►MRP Part 145◄ and that the person meets the ►applicable◄ eligibility criteria►5◄.

4 ►Refer to RA 4812 – Certification of Air System Release and Component Release (MRP 145.A.50).5 Refer to RA 4801(2) – Certifying Staff.◄

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4807(2)



9. In derogation to RA 4807(2)(a) ►– Certification and Supervisory Authorizations◄ (MRP 145.A.35(b)(a)), MMOs may, in exceptional circumstances,authorize an individual to undertake the role of ‘2nd signature’ outside of their tradeboundary. Such authorization should be limited by task and period and should onlybe undertaken when the ‘1st signature’ for the task:

a. Is working within their trade boundary ►◄; and

b. Meets the qualification criteria►6◄.

10. In order to meet the qualification criteria stipulated►6,◄ individuals should onlybe issued ‘2nd signature’ or ‘3rd signature’ authorizations ►◄ after they havecompleted the applicable ►Air System◄ type training and had the associatedqualification annotated on their training record.

11. ►◄

a. ►◄

b. ►◄

►◄


12. Nil.

GuidanceMaterial

4807(2)

Certification and Supervisory Authorizations (MRP 145.A.35(b))Common GM

13. ►This Regulation◄ ensures that staff can only be granted certificationauthorization while they meet the qualification requirements for certifying staff ►5◄.


14. The responsibility for establishing the content of the ►type◄ training coursesdetailed at paragraph 10 remains the responsibility of the relevant TrainingRequirements Authorities►7◄. However, as a minimum, the training must provide theindividual with a general understanding of the ►Air System◄ type, together with thelocation and function of its principle components/assemblies, as applicable to theindividual’s trade. Such training must also draw attention to the hazards associatedwith these systems. Successful completion of this training must lead to such factbeing recorded as a qualification on the individual’s training or competence record.The means of delivering such training is at the discretion of ►the◄ Commands andmay include, but is not limited to, pre-employment training, a standalone trainingcourse or an appropriate element/module of a longer, modular type training course.


15. Nil.

Regulation

4807(3)

Staff Experience Requirements (MRP 145.A.35(c))

4807(3) The organization shall ensure that all certifying staff andsupport staff with supervisory responsibilities have at least 6months of actual relevant ►Air System◄ or componentmaintenance experience in any consecutive 2 year periodfollowing initial authorization.

6 ►Refer to RA 4807(2)(b) – Certification and Supervisory Authorizations (MRP 145.A.35(b)(b)).7 Refer to RA 4150 – Training and Competence.◄

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4807(3)

Staff Experience Requirements (MRP 145.A.35(c))Common AMC

16. Nil.


17. Where unpredictable variations in operational military tasking require the use ofpersonnel not meeting the 6-month experience requirement, agreement from theAccountable Manager (Maintenance) should be sought. Such authorization shouldbe on a temporary basis only, with suitable precautionary measures put in place, andthe ►Military Continuing Airworthiness Management Organization◄ informed.Alternatively, personnel will require their competence to be reassessed prior toreauthorization; further detail is contained below in Paragraph ►20◄.


18. Nil.

GuidanceMaterial

4807(3)

Staff Experience Requirements (MRP 145.A.35(c))19. For the purpose of this Regulation, ‘►have◄…actual relevant ►Air System◄ or component maintenance’ means that the person has worked in an ►Air System◄or component maintenance environment and has either exercised the privileges of thecertification/supervision authorization or has actually carried out maintenance on atleast some of the ►Air System◄ type systems specified in the particularcertification/supervision authorization.

20. ►This Regulation◄ does not apply to the initial authorization or reauthorizationof certifying staff and support staff with supervisory responsibilities; the experiencelevels of these individuals will be considered as part of the competenceassessment►8.◄

21. ►RA 4807(5) – Continuation Training Programme (MRP 145.A.35(e)) applies once an authorization has been granted, necessitating an experience ‘currency’requirement (also known as ‘recency’) for certifying staff and support staff withsupervisory responsibilities to maintain their authorization.◄

Regulation

4807(4)

Staff Continuation Training (MRP 145.A.35(d))

4807(4) The organization shall ensure that all certifying staff andsupport staff receive sufficient continuation training in each 2year period to ensure that such staff have up-to-dateknowledge of relevant technology, organization proceduresand Human Factor issues.


4807(4)

Staff Continuation Training (MRP 145.A.35(d))Common AMC

22. Nil.


23. ►Single-Service orders should detail the continuation training requirementswithin each 2 year period in order to:◄

a. Ensure that staff are familiar with any changes made to relevantRegulation, policy and procedures (including maintenance procedures) and themodification standard of the ►Air System◄ and/or components beingmaintained.

b. Learn from the experience of instances where staff failed to followprocedures, using evidence obtained from quality audits where appropriate, andthe reasons why particular procedures are not always followed.

8 ►Refer to: RA 1002 – Airworthiness Competent Persons; RA 4806(5) – Personnel Competences and Authorization (MRP 145.A.30(e)); and RA 4807(6) – Certifying Staff Competence Assessment (MRP 145.A.35(f)).◄

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4807(4)

24. As part of staff continuation training, all personnel who undertake flight servicingshould periodically undergo flight servicing competency checks ►at least every 12 months.◄


25. Continuation training is a 2-way process to ensure that certifying staff remaincurrent in terms of procedures, Human Factors and technical knowledge and that theorganization receives feedback on the adequacy of its procedures and maintenanceinstructions. Due to the interactive nature of this training, it should have involvementfrom the quality department to ensure that feedback is actioned. Alternatively, thereshould be a procedure to ensure that feedback is formally passed from the trainingdepartment to the quality department to initiate action.

26. Continuation training should►:◄

a. Cover changes in relevant requirements such as ►MRP Part 145 changes◄, changes in organization procedures and the modification standardof the products being maintained, plus Human Factor issues identified from anyinternal or external analysis of incidents.

b. Address instances where staff failed to follow procedures and thereasons why particular procedures are not always followed. In many cases thecontinuation training will reinforce the need to follow procedures and ensure thatincomplete or incorrect procedures are identified to the organization in orderthat they can be corrected. This does not preclude the possible need to carryout a quality audit of such procedures.

27. Continuation training should be of sufficient duration in each 2 year period tomeet the intent of ►this Regulation◄, and may be split into a number of separateelements.

28. The method of training is intended to be a flexible process and could, forexample, include an external continuation training course, aeronautical collegecourses, internal short duration courses, seminars, etc. The elements, generalcontent and length of such training should be specified in the MaintenanceOrganization Exposition (MOE).

GuidanceMaterial

4807(4)

Staff Continuation Training (MRP 145.A.35(d))Common GM

29. ►Regulating◄ the need for continuation training to keep staff updated in termsof relevant technology, procedures and Human Factors issues ►◄ is one part ofensuring quality. Therefore, its content and duration will be related to relevant qualityaudit findings and other internal/external sources of information available to theorganization on human errors in maintenance. It is recommended that the content andduration of continuation training is reviewed at least once in every 24 month period.

►◄

30. ►Defence Air Environment continuation training requirements9 for HumanFactors must be followed.◄

►◄

31. ►◄

Regulation

4807(5)

Continuation Training Programme (MRP 145.A.35(e))

4807(5) The organization shall establish a programme forcontinuation training for certifying staff and support staff,including a procedure to ensure compliance with the relevantparagraphs of ►this Regulatory Article◄ as the basis forissuing certification authorizations under ►MRP Part 145◄to certifying staff.

9 ►Refer to RA 1440 – Air Safety Training.◄

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4807(5)

Continuation Training Programme (MRP 145.A.35(e))Common AMC

32. Nil.


33. The continuation training programme may be established by a higher militaryformation than the MMO, particularly if continuation training is provided under single-Service arrangements. Nevertheless, MMOs should ensure that their staff complywith such programmes and that applicable training is completed prior to the issue ofengineering authorizations►10◄.


34. The programme for continuation training should list all certifying staff andsupport staff and when training will take place, the elements of such training and anindication that it was carried out reasonably on time as planned. Such informationshould subsequently be transferred to the certifying staff and support staffrecord►11◄.

GuidanceMaterial

4807(5)

Continuation Training Programme (MRP 145.A.35(e))35. Nil.

Regulation

4807(6)

Certifying Staff Competence Assessment (MRP 145.A.35(f))

4807(6) The organization shall assess all prospective ►and current◄ certifying staff for their competence, qualificationand capability to carry out their intended certifying dutiesprior to the issue or re-issue of a certification authorizationunder ►MRP Part 145◄. For AMOs, this shall be inaccordance with a procedure specified in the exposition.


4807(6)

Certifying Staff Competence Assessment (MRP 145.A.35(f))Common AMC

36. Nil.


37. MMOs should conduct such assessments in accordance with ►the applicable requirements12◄.


38. Qualification assessment means collecting copies of all documents that attest toqualification, such as the licence and/or any authorization held. This should befollowed by a confirmation check with the organization(s) that issued suchdocument(s) and finally a comparison check for differences between the product typeratings on the qualification documents and the relevant product types maintained bythe organization. This latter point may reveal a need for additional training to coverany differences in product type.

10 ►Refer to RA 4806(5) – Personnel Competences and Authorization (MRP 145.A.30(e)).11 Refer to RA 4807(10) – Record of Staff (MRP 145.A.35(j)).12 Refer to RA 1002 – Airworthiness Competent Persons and RA 4806(5) – Personnel Competences and Authorization (MRP145.A.30(e)).◄

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GuidanceMaterial

4807(6)

Certifying Staff Competence Assessment (MRP 145.A.35(f))Common GM

39. The requirement ►of this Regulation for a competence assessment of certifying staff is◄ in addition to the competence assessment►10◄ applicable to all personnelinvolved in any maintenance, management and/or quality audits.


40. Nil.


41. Competence and capability may be assessed by working the person under thesupervision of either another certifying person or a quality auditor for sufficient time toarrive at a conclusion. Sufficient time could be as little as a few weeks if the person isfully exposed to relevant work. It is not required to assess against the completespectrum of intended duties.

42. When the person has been recruited from another maintenance organizationapproved under ►MRP Part 145◄, and was a certifying person in that organization,then the ►receiving◄ organization may accept a written confirmation from the personresponsible for running the quality system about the person.

Regulation

4807(7)

Issue of Certification Authorization (MRP 145.A.35(g))

4807(7) When the conditions of RA 4807 ►– Certifying Staff andSupport Staff Sub-Regulations (1), (2), (3), (4) and (6)◄ (MRP 145.A.35(a), (b), (c), (d) and (f)) have been fulfilled bythe certifying staff, the organization shall issue a certificationauthorization that clearly specifies the scope and limits ofsuch authorization.


4807(7)

Issue of Certification Authorization (MRP 145.A.35(g))43. Continued validity of the certification authorization should be dependent uponcontinued compliance with ►this Regulatory Article.◄

GuidanceMaterial

4807(7)

Issue of Certification Authorization (MRP 145.A.35(g))44. Nil.

Regulation

4807(8)

Certification Authorization Codes (MRP 145.A.35(h))

4807(8) The certification authorization shall be in a style that makesits scope clear to the certifying staff and any person who maybe required to examine the authorization. Where codes areused to define scope, the organization shall make a codetranslation readily available.


4807(8)

Certification Authorization Codes (MRP 145.A.35(h))Common AMC

45. Nil.


46. ►MMOs should adopt a common system of authorization(s) to provide theirpersonnel the authority to carry out engineering tasks and sign maintenancedocumentation once assessed as competent.◄

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4807(8)


47. Nil.

GuidanceMaterial

4807(8)

Certification Authorization Codes (MRP 145.A.35(h))►Common GM

48. Nil.


49. The benefit of using a common system of authorization is to provide universallyrecognisable authorization codes that can support tri-Service maintenance personnelbeing employed across each Command. Such a common authorization system mustbe strictly controlled, with any deviation appropriately managed by the Commands.


50. Nil.◄

Regulation

4807(9)

Responsibility for Issuing Certification Authorization (MRP145.A.35(i))

4807(9) Certification authorizations shall be issued in a controlledmanner. For AMOs, the person responsible for the qualitysystem shall also remain responsible on behalf of theorganization for issuing certification authorizations tocertifying staff. Such person may nominate other persons toactually issue or revoke the certification authorizations inaccordance with a procedure as specified in the exposition.


4807(9)

Responsibility for Issuing Certification Authorization (MRP145.A.35(i))Common AMC

51. Nil.


52. ►The delegation of authorizations13 within an MMO should be controlled by anominated person to retain oversight of the authorization issued, reviewed and, wherenecessary, revoked.◄


53. Nil.

GuidanceMaterial

4807(9)

Responsibility for Issuing Certification Authorization (MRP145.A.35(i))54. Nil.

Regulation

4807(10)

Record of Staff (MRP 145.A.35(j))

4807(10) The organization shall maintain a record of all certifying staffand support staff. The record shall be retained by theorganization for at least 2 years after ►any◄ individual hasceased employment with the organization, or from when theauthorization has been withdrawn. The staff records shallcontain:

13 ►Refer to RA 1006 – Delegation of Engineering Authorizations.◄

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Regulation

4807(10)

(a) Details of any aircraft maintenance licence held.

(b) All relevant training completed.

(c) The scope of the certification authorizations issued,where relevant.

(d) Particulars of staff with limited or one-off certificationauthorizations.


4807(10)

Record of Staff (MRP 145.A.35(j))Common AMC

55. Nil.


56. Nil.


57. The following minimum information as applicable should be kept on record inrespect of each certifying person:

a. Name.

b. Date of Birth.

c. Basic Training.

d. Type Training.

e. Continuation Training.

f. Experience.

g. Qualifications relevant to the authorization.

h. Scope of the authorization.

i. Date of first issue of the authorization.

j. If appropriate - expiry date of the authorization.

k. Identification Number of the authorization.

l. Security clearance, where applicable.

58. The record may be kept in any format but should be controlled by theorganization's quality department. This does not mean that the quality department►runs◄ the record system.

59. Persons authorized to access the system should be maintained at a minimumto ensure that records cannot be altered in an unauthorized manner or that suchconfidential records become accessible to unauthorized persons.

60. In the case of an approval based on one person using a subcontracted qualitymonitoring arrangement, the requirement for a record of certifying and support staff issatisfied by the submission to and acceptance by the MAA of the MAA Form 4►14◄.With only one person, the requirement for a separate record of authorization isunnecessary because the MAA Form 3A approval schedule defines the authorization.Where applicable, an appropriate statement to reflect this situation should be includedin the exposition.

GuidanceMaterial

4807(10)

Record of Staff (MRP 145.A.35(j))61. Nil.

14 ►The MAA Form 4 can be found on the MAA website, within the approvals section, at the following link: https://www.gov.uk/government/publications/maintenance-approved-organization-scheme-maos.◄

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Regulation

4807(11)

Provision to Staff of a Copy of Their Authorizations (MRP145.A.35(k))

4807(11) Personnel shall be given a copy of their authorizations,where applicable.


4807(11)

Provision to Staff of a Copy of Their Authorizations (MRP145.A.35(k))►◄

62. ►The organization should either provide staff with a copy of theirauthorizations (including copies of any subsequent authorizations) in hard copy orprovide access to their authorizations by issuing a personal account for an approvedinformation system, where used to retain such records.◄

►◄

63. ►◄

►◄

64. ►◄

GuidanceMaterial

4807(11)

Provision to Staff of a Copy of Their Authorizations (MRP145.A.35(k))65. Nil.

Regulation

4807(12)

Requirement to Produce Certification Authorization (MRP145.A.35(l))

4807(12) Certifying staff or, where applicable, the organization, shallproduce their certification authorization to the MAA within 24hours of request.


4807(12)

Requirement to Produce Certification Authorization (MRP145.A.35(l))66. Nil.

GuidanceMaterial

4807(12)

Requirement to Produce Certification Authorization (MRP145.A.35(l))67. Nil.

Regulation

4807(13)

Minimum Age of Certifying Staff (MRP 145.A.35(m))

4807(13) Staff under 21 years of age shall not be employed ascertifying staff or support staff with supervisoryresponsibilities.


4807(13)

Minimum Age of Certifying Staff (MRP 145.A.35(m))68. Nil.

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GuidanceMaterial

4807(13)

Minimum Age of Certifying Staff (MRP 145.A.35(m))Common GM

69. This Regulation does not apply to elementary self-supervisors ►◄.


70. Where single-Service rank and trade structures require staff under 21 years ofage to be employed as certifying staff or support staff with supervisory responsibilities,a bounded ►waiver15 to this Regulation◄ must be sought from the MAA, givingsufficient justification and stipulating the conditions and ►Air System◄ types on whichsuch individuals will be employed.


71. Nil.

15 ►Refer to MAA03: MAA Regulatory Processes.◄

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RA 4808 - Equipment, Tools and Material (MRP 145.A.40)Rationale ►Air Systems require the availability of a range of equipment, tools and material to

maintain them in accordance with Technical Information. Failure to adequately controlall such items, especially when considering the potential hazard of a lost tool, couldsignificantly increase the risk to Air Safety. RA 4808 details the requirements for aMaintenance Organization (MO) to use correct and serviceable equipment, tools andmaterials, in a controlled manner.

Contents 4808(1): Accounting of Equipment, Tools and Materials (MRP145.A.40(a))◄

4808►(2): Availability of◄ Equipment, Tools and Materials (MRP145.A.40(►b◄))

4808►(3): Management and Calibration◄ of Equipment ►and◄Tools ►◄ (MRP 145.A.40(►c◄))

Regulation

4808(1)

►Accounting of Equipment, Tools and Materials (MRP 145.A.40(a))

4808(1) The organization shall:

(a) Ensure that it can account for any equipment, tool ormaterial used on an Air System or component.

(b) Ensure that the Air System or component is clear ofall equipment, tools and materials on completion ofany Continuing Airworthiness activity.


4808(1)

Accounting of Equipment, Tools and Materials (MRP 145.A.40(a))1. The organization should adopt a process that readily identifies whenequipment, tools or materials are in-use on an Air System or component.

2. The organization should adopt a process to readily identify on which AirSystem or component any equipment, tools or materials are in-use and by whom.

3. The organization should adopt a process that identifies the whereabouts of allequipment, tools and materials at the following points, as a minimum:

a. At the start and cease of the working day.

b. At any handover or takeover of a task or shift personnel.

c. When the loss of any equipment, tools or materials is suspected.

4. All records of stocktake and accounting of equipment, tools or materials, tomeet the requirements of Paragraph 3, should be retained. Retention periods shouldbe at the discretion of a suitably nominated individual(s)1, but as a minimum, recordsshould be retained for a period not less than the frequency of any additional checks.

5. The organization should implement a process that controls equipment, toolsand materials used within its facilities by another organization’s personnel.

GuidanceMaterial

4808(1)

Accounting of Equipment, Tools and Materials (MRP 145.A.40(a))6. For the purpose of this Regulation, ‘materials’ include consumables that areused in the preparation for maintenance work and any engineering hygiene that isnecessary before its completion.

7. In the event of any equipment, tool or material not being accounted for, theLoose Article requirements2 must be followed.

8. The process referred to in Paragraph 5 is intended to ensure that equipment,tools or materials, other than what is already under the control of the loanedorganization, are controlled to at least the same standard as undertaken by theoriginating MO.◄

1 ►Refer to RA 4806(2) – Personnel Responsible to the Accountable Manager (Maintenance) (MRP 145.A.30(b)).2 Refer to RA 4253 – Loose Articles - Precautions and Recovery Procedures.◄

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Regulation

4808(2)

►Availability of◄ Equipment, Tools and Materials (MRP145.A.40(►b◄))

4808►(2)◄ The organization shall have available and use thenecessary equipment, tools and materials to perform itsintended (or, for Approved Maintenance Organizations(AMOs), approved) scope of work.

(a) Where the Air System Document Set (ADS) specifiesa particular tool or equipment, the organization shalluse that tool or equipment, unless the use ofalternative tooling or equipment is agreed by the TypeAirworthiness Authority (TAA), via approvedprocedures. For AMOs, such procedures shall bedetailed in the exposition►3◄.

(b) Equipment and tools ►shall◄ be permanentlyavailable, except in the case of any tool or equipmentthat is so infrequently used that its permanentavailability is not necessary. ►For AMOs,◄ suchcases shall be detailed in an exposition procedure.

(c) An organization carrying out ►Air System◄maintenance shall have sufficient ►Air System◄access equipment and inspection platforms/dockingavailable such that the ►Air System◄ can beproperly inspected when required.


4808(2)

►Availability of◄ Equipment, Tools and Materials (MRP145.A.40(►b◄))Common AMC

9. ►All tools and equipment that require to be controlled in terms of servicing or calibration, by virtue of it being necessary to ensure the accuracy of the measuredreadings/variable specifications, should be clearly identified and listed in a controlregister.◄

Additional AMC - Military Maintenance Organizations (MMOs) only

10. Only ►Defence◄ provided hand tools and ►Test and Measuring Equipment (TME)◄ should be used. Such tools ►, including Precision Termination Tooling,◄ and TME should be ►appropriately◄ managed ►◄.

11. ►◄


12. Once the ►organization◄ has determined the intended scope of approval forconsideration by the MAA, it should be able to show that all tools and equipment asspecified in the Technical Information can be made available when needed.

13. ►◄

14. Where agreed in the relevant contract, Government Furnished Equipment isacceptable ►and◄ should be controlled in the manner stipulated above.

GuidanceMaterial

4808(2)

►Availability of◄ Equipment, Tools and Materials (MRP145.A.40(►b◄))15. Nil.

3 ►Refer to RA 4816 – Maintenance Organization Exposition (MRP 145.A.70) - Approved Maintenance Organizations Only.◄

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Regulation

4808(3)

►Management and Calibration◄ of Equipment ►and◄ Tools ►◄(MRP 145.A.40(►c◄))

4808►(3)◄ The organization shall ensure that all tools, equipmentand particularly test equipment, as appropriate, are controlledand calibrated according to an officially recognized standard,at a frequency to ensure serviceability and accuracy.Records of such calibrations and traceability to the standardused shall be kept by the organization.


4808(3)

►Management and Calibration◄ of Equipment ►and◄ Tools ►◄(MRP 145.A.40(►c◄))Common AMC

16. ►The organization should have a procedure to inspect/service and, whereappropriate, calibrate tools and equipment on a regular basis and indicate to usersthat the item(s) is within any inspection, service or calibration expiry limit. A clearsystem of labelling all tooling, equipment and test equipment should be employed andprovide information on when the next inspection, service or calibration is due and if theitem is unserviceable for any other reason that may not be obvious.

17. Any tools and equipment that the organization authorizes for use should beclearly identified and listed in a control register.◄


18. All hand tools and TME should be uniquely identified and stored in anauthorized location ►◄.

19. MMOs should employ control procedures to ensure the full accountability andtraceability of all hand tools used on ►Air Systems◄ or ►Air System◄ components►◄.


20. ►◄

21. A register should be maintained for all precision tooling and equipment togetherwith a record of calibrations and standards used.

22. Inspection, service or calibration on a regular basis should be in accordancewith the equipment manufacturer’s instructions ►unless approved otherwise by the MAA◄.

GuidanceMaterial

4808(3)

►Management and Calibration◄ of Equipment ►and◄ Tools ►◄(MRP 145.A.40(►c◄))►◄

23. ►◄

►◄

24. ►◄

►◄

25. For the purpose of ►this Regulation◄, ‘officially recognized standard’ willnormally mean those standards established by the manufacturer or published by anofficial body.

26. ►Additional checks may be instigated by appropriately authorized individuals and/or in accordance with a tool manufacturer’s Technical Information.◄

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RA 4809 - Acceptance of Components (MRP 145.A.42)

Rationale ►The maintenance of Air Systems requires the replacement and subsequentmovement of components between organizations. Failure to correctly identify, classifyand trace the life of components could lead to unsuitable items being accepted byMaintenance Organisations (MOs), potentially compromising Airworthiness andincreasing Risk to Life. RA 4809 requires a MO to only accept components if theyhave been correctly identified and classified.◄

Contents 4809(1): Component Classification (MRP 145.A.42(a))

4809(2): Suitability of Components (MRP 145.A.42(b))

4809(3): Local Manufacture/Fabrication of Components (MRP145.A.42(c))

4809(4): Certification of Components as Unsalvageable/Scrap(MRP 145.A.42(d))

Regulation

4809(1)

Component Classification (MRP 145.A.42(a))

4809(1) Components shall be classified and appropriatelysegregated into the following categories:

a. Components which are in a serviceable condition,released on an MOD Form 731 ►◄ or equivalent.

b. Unserviceable components ►◄.

c. Unsalvageable/Scrap components which are►appropriately◄ classified►1◄.

d. Standard parts used on an ►Air System◄, engine,propeller or other ►Air System◄ component whenspecified in the manufacturer's illustrated parts catalogueand/or the Technical Information.

Note:

These parts shall only be considered serviceable ifaccompanied by a manufacturer’s Certificate ofConformity (or equivalent).

e. Material both raw and consumable used in the course ofmaintenance when the organization is satisfied that thematerial meets the required specification and hasappropriate traceability.

Note:

All material shall only be considered serviceable ifaccompanied by documentation clearly relating to theparticular material and containing a ‘conformity tospecification’ statement plus both the manufacturing andsupplier source.

1 ►Refer to RA 4809(4) – Certification of Components as Unsalvageable/Scrap (MRP 145.A.42(d)).◄

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4809(1)

Component Classification (MRP 145.A.42(a))Common AMC

1. With respect to RA 4809(1)(a) (MRP 145.A.42(a)(a)), only the followingdocuments should be accepted as an equivalent to the MOD Form 731 for identifyinga component as ready for release to service2:

a. A European Aviation Safety Agency (EASA) Form 1 issued by an EASAapproved organization for products, parts and appliances within the scope ofsuch an approval under the following conditions only:

(1) New parts issued under EASA ►Part◄ 21 Regulations.

(2) Maintained, repaired or overhauled parts having applicability3 tocivilian registered ►Air Systems◄, that are also utilized on militaryregistered ►Air Systems◄, released under Practice 14 of the EASACertificate of release Regulations5.

b. A UK MAA Form 1 (only when issued by a ►MO◄ approved by the MAAand only for products, parts or appliances within the scope of that approval).The format and notes for completion of a UK MAA Form 1 are at Annex A.

c. A European Defence Agency (EDA) participating Member State’snational derivative of the European Military Airworthiness Requirements(EMAR) Form 1 template (only when issued by a ►MO◄ appropriatelyapproved by the MAA or approved by an authority with which the MAA has anextant Recognition6 with a scope that includes the acceptability of their ►MO◄approvals).

d. A Certificate of Conformity (CoC) or MOD Form 640 (these documentsare acceptable only when they meet the information requirements of DefenceCondition (DEFCON) 627 and traceability of certification can be maintained, andthe item is in unbroached primary packaging).

e. MOD Form 3910 (for consumable components only).



2. Prior to ►the return and/or transfer of◄ an item of technical equipment►between MOs or into◄ the supply/logistics organization, ►the item◄ should beconditioned in order to determine its serviceability state. ►◄

Additional AMC - Approved Maintenance Organizations (AMOs) only


3. When a ‘standard part’ is received with a CoC, the accreditations of theoriginator should be established as far as reasonably practicable. AMOs shouldhave a procedure in place for assessing suppliers.

GuidanceMaterial

4809(1)

Component Classification (MRP 145.A.42(a))4. Whilst the UK MAA Form 1 has blocks to detail the release of new item(s) (aswould be permitted under an EASA Part 21 production release) there is currently noequivalent MAA Regulation to underpin this certification. Therefore, the UK MAAForm 1 is not to be used to certify new products at this time.

5. MOD logistics policy permits MOD Form 640s and CoCs to be held at the

2 ‘Release to service’ in this sense ►means◄ that the item meets the design specification, detailed within ►Technical Information◄,after being maintained, repaired or overhauled.3 Certified as a part or appliance by or on behalf of EASA for use on civil type certified ►Air Systems◄.4 Practice 1 is defined within EASA Letter JAN/kgu/R(4) 2013(D)51397 – Rulemaking interpretation on “Maintenance release ofaircraft not covered by the basic regulation”. The EASA Letter can be found at the following link:https://www.easa.europa.eu/system/files/dfu/13D51397 Maint. release of aircraft not covered by BR for website publication.pdf5 EASA have clarified that the use of an EASA Form 1 under Practice 1 as an Airworthiness release certificate for a repaired part thatis only eligible to be installed in a military ►Air System◄ is considered improper by EASA, and not in line with the provisions of theBasic Regulation – EASA Maintenance Regulations Section, 06 Apr 2016.6 The list of EDA participating Member States that have recognition agreements with the UK MAA is at the following link:https://www.gov.uk/government/publications/maa-recognition.

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GuidanceMaterial

4809(1)

depot/Main Operating Base (MOB) where the item(s) is initially received. Therefore,provided that each individual component remains in unbroached primary packaging,these items may be dispatched to ►MOs◄ without a copy of their respective MODForm 640 or CoC attached. The absence of this accompanying document isacceptable provided that all of the following are met:

a. The item was accompanied by a MOD Form 640 or CoC on receipt intothe MOD. If required, the depot/MOB can provide the original MOD Form 640or CoC for clarification in this regard. MOD policy is detailed in the DefenceLogistics Framework (DLF)7.

b. The item has been received by the ►MO◄ through the MOD, with anaccompanying issue voucher, as a serviceable item.

c. The item is delivered to the ►MO◄ in unbroached primary packaging.

d. All ►Technical Information◄ (modification state, component life, etc), asapplicable, is available on certified documentation elsewhere.

6. For clarification, the CoC is the document produced by the componentmanufacturer or contracted maintainer that contains a mark (normally a signature orstamp) to certify its quality (following manufacture) or serviceability (followingmaintenance). It may also be known as the Certificate of Conformance, or Certificateof Compliance.

7. DEFCONs are available through the Commercial Toolkit8.

8. ►◄

Regulation

4809(2)

Suitability of Components (MRP 145.A.42(b))

4809(2) Prior to the installation of a component, the organizationshall satisfy itself that the particular component is suitable.To be considered suitable the component shall be in anacceptable state, be appropriately conditioned/released andbe of the correct standard when different Modification and/orAirworthiness Directives (AD)/Special Instruction (Technical)(SI(T)) standards may be applicable.


4809(2)

Suitability of Components (MRP 145.A.42(b))Common AMC

9. The organization should ensure that the component meets the approveddata/standard, such as the required design and modification standard. This may beaccomplished by reference to the Topic 3A, manufacturer's parts catalogue or other►Technical Information◄.

10. The organization should also ensure that the component complies withapplicable SI(T)s or ►AD◄ and be aware of the status of any life limited parts fitted tothe ►Air System◄ component.


11. For components that require an Engineering Record Card (ERC), the ERCshould be controlled ►◄.


12. Nil.

7 The DLF is hosted on the Defence Gateway at www.defencegateway.mod.uk8 The Commercial Toolkit can be found in the Acquisition System Guidance, hosted on the Defence Gateway at the following link.

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GuidanceMaterial

4809(2)

Suitability of Components (MRP 145.A.42(b))13. “Be appropriately conditioned/released” means that the component’sserviceability has been confirmed►9◄.

14. When used, the UK MAA Form 1, EASA Form 1 or EMAR Form 1 identifies thestatus of an ►Air System◄ component. The "Remarks" block 12 on the forms maycontain vital Airworthiness related information, which may need appropriate andnecessary actions. The MOD Form 731 may also contain Airworthiness relatedinformation.

Regulation

4809(3)

Local Manufacture/Fabrication of Components (MRP 145.A.42(c))

4809(3) The local manufacture/fabrication of ►Air System◄ Partsand Airborne Equipment by ►an MO◄ shall require specificauthorization. Such Parts/Equipment shall only bemanufactured/fabricated in accordance with ►Approved Data◄.


4809(3)

Local Manufacture/Fabrication of Components (MRP 145.A.42(c))Common AMC

15. ►Local manufacture/fabrication, inspection, assembly and test should beundertaken within the technical and procedural capability of the MO. All personnelshould be specifically assessed as competent10 for the tasks they are expected tocomplete.

16. Any locally manufactured/fabricated part should be subjected to an inspectionstage before, and preferably independently from, any inspection of its installation. Theinspection should establish full compliance with the relevant manufacturing data, andthe part should be unambiguously identified as fit for use by stating conformity to theApproved Data.

17. Adequate records should be maintained of all such localmanufacture/fabrication processes including heat treatment and the final inspection.

18. All parts, unless size prohibits it, should carry a part number which clearlyrelates it to the manufacturing/inspection data. Additional to the part number, theorganization's identity should be marked on the part for traceability purposes.◄


19. ►The local manufacture/fabrication of Air System parts should be undertakenin accordance with approved orders and procedures11.◄


20. AMOs should only locally manufacture/fabricate parts within its own facilities inaccordance with procedures identified in the exposition and approved by the MAA.

21. The agreement by the MAA for the local manufacture/fabrication of ►parts◄ bythe AMO should be formalized through the approval of a detailed procedure in theMaintenance Organization Exposition.

22. ►◄

23. Items locally manufactured/fabricated by an AMO should only be used by thatorganization in the course of overhaul, maintenance, Modifications, or Repair of ►Air Systems◄ or components undergoing work within its own facility. The permission tolocally manufacture/fabricate does not constitute approval ►to manufacture multiple items◄, or to supply externally. A MOD Form 731 (or equivalent) annotated in red►ink◄, “FABRICATED ITEM IAW RA 4809(3) (MRP 145.A.42(c)) FOR EXCLUSIVEUSE BY THE FABRICATING ORGANIZATION WITHIN ITS OWN FACILITIES”should be attached to the part. This prohibition also applies to the bulk transfer of

9 ►Refer to RA 4812(4) – Certification of Component Release and Cannibalization (MRP 145.A.50(d)).10 Refer to RA 4806(5) – Personnel Competences and Authorization (MRP 145.A.30(e)).11 Refer to RA 4815(2) – Procedures for Good Maintenance Practices (MRP 145.A.65(b)).◄

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4809(3)

surplus inventory, in that locally manufactured/fabricated parts are physicallysegregated and excluded from any delivery certification.

24. Local manufacture/fabrication of parts, Modification kits, etc, for onward supplyand/or sale, should not be conducted by an AMO, unless they have been specificallycontracted to produce items by the MOD. If separately contracted, then thisproduction would be considered to be outside of the MRP Part 145 approval.

25. When locally manufacturing/fabricating parts, care should be taken to ensurethat the data used includes details of part numbering, dimensions, materials,processes, and any special manufacturing techniques, special raw materialspecification or/and incoming inspection requirement and that the approvedorganization has the necessary capability. That capability should be defined ►in the MO’s exposition◄. Where special processes or inspection procedures are defined inthe ►Approved Data◄, which are not available at the organization, the organizationshould not locally manufacture/fabricate the part unless the ►Air System◄ TypeAirworthiness Authority (TAA) gives an approved alternative. This principle alsoapplies to the technique of 3D printing/additive manufacturing.

26. All locally manufactured/fabricated parts should be in accordance with►Technical Information◄ provided in overhaul or Repair manuals, Modificationschemes and service bulletins, drawings or otherwise approved by the TAA.

Note:

Items should not be locally manufactured/fabricated to pattern unless anengineering drawing of the item is produced which includes any necessarymanufacturing/fabrication processes and which is acceptable to the TAA.

27. For civil-derivative ►Air Systems◄, where a ►Type Certificate◄ holder,Design Organization or an approved production organization is prepared to makeavailable complete data which is not referred to in ►Air System◄ manuals, ►Service Bulletins◄ or SI(T)s, but provides manufacturing drawings for items specified in partslists, the local manufacture/fabrication of these items should not be considered aswithin the scope of an organization’s approval, unless agreed otherwise by the TAA inaccordance with a procedure specified in the exposition.

►◄

28. ►◄

29. ►◄

30. ►◄

GuidanceMaterial

4809(3)

Local Manufacture/Fabrication of Components (MRP 145.A.42(c))Common GM

31. Nil.


32. ►Nil.◄


33. Examples of local manufacture/fabrication permitted for AMOs can include, butare not limited to, the following:

a. Fabrication of bushes, sleeves and shims.

b. Fabrication of secondary structural elements and skin panels.

c. Fabrication of control cables.

d. Fabrication of flexible and rigid pipes.

e. Fabrication of electrical cable looms and assemblies.

f. Formed or machined sheet metal panels for repairs.

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Regulation

4809(4)

Certification of Components as Unsalvageable/Scrap ((MRP145.A.42(d))

4809(4) Components which have reached their certified life limit orcontain a non-repairable fault shall be classified asunsalvageable/scrap and shall not be permitted to re-enterthe component supply system unless the TAA or an MAA–approved Design Organization12 has either:

a. Extended certified life limits; or

b. Approved a recovery solution.


4809(4)

Certification of Components as Unsalvageable/Scrap ((MRP145.A.42(d))Common AMC

34. Nil.


35. Components should only be classified as unsalvageable/scrap by an MMO inaccordance with ►approved orders and procedures11◄.


36. The following types of components should typically be classified asunsalvageable/scrap:

a. Components with non-repairable faults, whether visible or not to thenaked eye.

b. Components that do not meet design specifications, and cannot bebrought into conformity with such specifications.

c. Components subjected to unacceptable modification or rework that isirreversible.

d. Certified life-limited parts that have reached or exceeded their certified lifelimits, or have missing or incomplete records.

e. Components that cannot be returned to ►an◄ airworthy condition due toexposure to extreme forces, heat or adverse environment.

f. Components for which conformity with an applicable ►AD◄ or ►◄SI(T) cannot be accomplished.

g. Components for which maintenance records and/or traceability to themanufacturer cannot be retrieved.

GuidanceMaterial

4809(4)

Certification of Components as Unsalvageable/Scrap ((MRP145.A.42(d))37. Caution must be exercised to ensure that unsalvageable components aredisposed of in a manner that does not allow them to be returned to service ►◄.

38. ►◄

12 Only if privileged by a TAA in accordance with RA 5850(10) – Privileges ►◄.

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ANNEX A

AUTHORIZED RELEASE CERTIFICATE UK MAA FORM 1 FORMAT

1. INSTRUCTIONS FOR USE. These instructions relate only to the use of the UK MAA Form 1.

2. PURPOSE AND USE. The primary purpose of the Certificate is to declare the Airworthiness ofmaintenance work undertaken on products, parts and appliances (hereafter referred to as “item(s)”. ►◄

3. Correlation must be established between the Certificate and the item(s). The originator must retaina Certificate in a form that allows verification of the original data.

4. The Certificate may be acceptable to many Airworthiness authorities, but may be dependent on theexistence of bilateral or multilateral agreements and/or policy of the respective National MAA (NMAA). The“approved design data” mentioned in this Certificate then means that which is approved by the competentauthority of the importing country.

5. The Certificate is not a delivery or shipping note.

6. ►Air Systems◄ are not to be released using the Certificate.

7. The Certificate does not constitute approval to install the item(s) on a particular ►Air System◄,engine, or propeller but indicates to the end user the serviceability state of the item(s).

8. A mixture of production released and maintenance released item(s) is not permitted on the sameCertificate.

9. GENERAL FORMAT. The Certificate must comply with the format detailed below, including blocknumbers and the location of each block. The size of each box may be varied to suit individual applicationbut not to the extent that would make the Certificate unrecognisable.

10. The Certificate must be in A4 ‘landscape’ format but the overall size may be increased so long asthe Certificate remains recognisable and legible. If in doubt consult the MAA.

11. The user/installer responsibility statement can be placed on either side of the Certificate.

12. All printing must be clear and legible to permit easy reading.

13. The Certificate may either be pre-printed or computer generated but in either case the printing oflines and characters must be clear and legible and in accordance with the defined format.

14. The Certificate must be in English and, if appropriate, may be in one or more additional languages.

15. The details to be entered on the Certificate may be either machine/computer printed or hand-writtenusing block letters and must permit easy reading.

16. Limit the use of abbreviations to a minimum to aid clarity.

17. The space remaining on the reverse side of the Certificate may be used by the originator for anyadditional information but must not include any certification statement. Any use of the reverse side of theCertificate must be referenced in the appropriate block on the front side of the Certificate.

18. The use of continuation forms is permitted for clarity as long as they are referenced in theappropriate block on the Certificate. Any use of continuation forms must reference the appropriate block13a or 14a release statement on the Certificate and contain reference to the Certificate’s form trackingnumber.

19. Table A-1 contains the detailed description of the entries to be made when using the UK MAAForm 1. Draf

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Table A-1 UK MAA Form 1 Format

Block Title Completion Notes1 Approving Competent

Authority/Country.State the competent authority under whose approval thecertificate was issued.

2 AUTHORIZEDRELEASE

CERTIFICATEUK MAA FORM 1

Form header.

3 Form Tracking Number. Enter the unique number established by the numberingsystem/procedure of the organization identified in block 4; thismay include alphanumeric characters.

4 Approved OrganizationName and Address.

Enter the full name and address of the approved organizationreleasing the item(s) covered by this certificate. Logos, etc arepermitted if the logo can be contained within the block.

5 Work Order / Contract /Invoice Reference.

To facilitate Operating Organization/►Continuing Airworthiness Management Organization (CAMO)◄ traceability of the item(s),enter the work order number, contract tasking number, invoicenumber, or similar reference number.

6 Item. Serialize the item(s) by entering line item numbers when thereis more than one line item. This block permits easy cross-referencing to the Remarks block 12.

7 Description. Enter the name or description of the item(s). Preferenceshould be given to the term used in the instructions forContinuing Airworthiness or maintenance data (eg IllustratedParts Catalogue, ►Air System◄ Maintenance Manual, ServiceBulletin, Component Maintenance Manual).

8 Part Number. Enter the part number as it appears on the item(s) ortag/packaging. In case of an engine or propeller the typedesignation may be used.The part number as it appears on the item(s) is usually definedin the design data. Information about the contents of the kit ormedia may be given in block 12 or in a separate documentcross-referenced from block 12.►This Block can also be used to record the NATO Stock Number (NSN). If an NSN is to be recorded it must be clearlyidentified, eg NSN: 1234 99 1234567.◄

9 Quantity. State the quantity of each line item(s).10 Serial/Batch Number. If the item(s) is (are) required to be identified with a serial

number, enter it here. If there is no serial number identified onthe item(s) enter “N/A”. For item(s) without serial numbers thebatch number must be entered.

11 Status. Enter only one of the following terms; where more than onemay be applicable, use the one that most accurately describesthe majority of the work performed or the status of the item(s).

►◄

For maintenance purposes, enter either “OVERHAULED”,“REPAIRED”, “INSPECTED/TESTED” or “MODIFIED”.

“OVERHAULED”:

a. A process that ensures the item(s) is (are) incomplete conformity with all the applicable standards(*).The item must be at least disassembled, cleaned,inspected, repaired as necessary, reassembled andtested in accordance with the above specified data.

“REPAIRED”:

a. The item(s) has (have) undergone rectification ofdefect(s) using an applicable standard(*).

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Block Title Completion Notes“INSPECTED/TESTED”:

a. Airworthiness has been established byexamination, measurement, etc in accordance with anapplicable standard(*) (eg visual inspection, functionaltesting, bench testing etc).

“MODIFIED”:

a. The alteration of the item(s) to conform to anapplicable standard(*).

(*) Applicable standard means “to the service tolerancesspecified in the equipment manufacturer’s approved►Continuing Airworthiness instructions◄ or amanufacturing/design/maintenance/quality standard,method, technique or practice approved by or acceptableto the TAA.” The applicable standard must be describedin block 12.

12 Remarks. Describe the work identified in block 11, either directly or byreference to supporting documentation, necessary for the userinstaller to determine the Airworthiness of item(s) in relation tothe work being certified. If necessary, a separate sheet may beused and referenced from the main UK MAA Form 1. Eachstatement must clearly identify which item(s) in block 6 it relatesto. If there is no statement, state “none”.

Examples of such remarks are, but not limited to:a. Maintenance data including revision status andreferences;b. Compliance with Airworthiness Directives orService Bulletins (including SI(T));c. Repair(s) undertaken;d. Modification(s) undertaken and finalModification state;e. Life limited part(s) status;f. Deviations, deficiencies or concessions;g. Data pertinent to an end user such that theyunderstand any hazard(s) or non-approved part(s) thatare fitted for packaging/transport purposes only (suchas blanks, bungs, inhibiting oil etc).

►13a-e◄ ►NOTE: Whilst the MAA Form 1 has blocks to detail therelease of new item(s) (as would be permitted under an EASAPart 21 production release) there is currently no equivalentMAA regulation to underpin this certification. Therefore the UKMAA Form 1 is not to be used to certify new products at thistime.

NOTE: These blocks are not used for maintenance release. Formaintenance purposes, blocks 13a-e should be shaded,darkened, or otherwise marked to preclude their inadvertent orunauthorized use.◄

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Block Title Completion Notes14a Maintenance Release

Statement.Used for maintenance release purposes ONLY

The box marked ‘MRP Part 145.A.50 (RA 4812)’ should bechecked when the part is released under the scope of anapproval granted by the UK MAA.

The Box marked ‘Other regulation specified in block 12’ shouldbe checked when the organization is releasing the part underthe Regulatory control of another NMAA. If checked the NMAAand Regulatory release should be quoted, along with the otherRegulator’s approval number, in block 12. (eg FR DSAE FREMAR.145.A.50 approval number 123456.)

Both check boxes must be marked if releasing under ‘dualrelease’ when the UK MAA and another EDA participatingMember State agree to permit such activity.

For all maintenance carried out by ►MOs◄ approved inaccordance with MRP Part 145, the certification statement“unless otherwise specified in block 12” is intended to addressthe following cases:

a. Where the maintenance could not be completed.b. Where the maintenance deviated from thestandard required by MRP Part 145.c. Where the maintenance was carried out inaccordance with a requirement other than that specifiedin MRP Part 145. In this case block 12 should specifythe particular standard to which the maintenance wasundertaken.

14b Authorized Signature. This space must be completed with the signature of theauthorized person. Only persons specifically authorized inaccordance with RA 4807 ►– Certifying Staff and Support Staff (MRP 145.A.35)◄ to meet the requirements of RA 4806(9) ►– Component Certifying Staff (MRP 145.A.30(i))◄ are permittedto sign this block. To aid recognition, a unique numberidentifying the authorized person may be added.

NOTE: The signature can be computer printed subjectto the MAA being satisfied that only the signatory candirect the computer and that a signature is not possibleon a blank computer-generated form.

14c Approval/AuthorizationNumber.

Enter the AMO’s approval number or certifying individual’s ►◄ authorization code. The approval number is issued by the MAAto the AMO. ►◄

14d Name. Enter the name of the person signing in block 14b.14e Date (dd/mm/yyyy). Enter the date on which block 14b was signed in the given

format; dd = 2 digit day, mm = 2 digit month, yyyy = 4 digit year.14a-e NOTE: These blocks are not used for production release. ►◄Draf

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Initial Issue Jun 16

1. Approving Competent Authority/Country AUTHORIZED RELEASE CERTIFICATE

UK MAA FORM 1

3. Form Tracking Number

4. Approved Organization Name and Address 5. Work Order/Contract/Invoice Reference

6. Item 7. Description 8. Part Number 9. Quantity 10. Serial/Batch Number 11. Status/Work

12. Remarks

Limited Life Parts must be accompanied with life history such as elapsed time, cycles or shelf/ultimate life dates since new.

13a. Certifies that the items identified above were manufactured in conformity to:

□ approved design data and are in condition for safe operation

□ non-approved design data specified in block 12

14a. □ MRP Part 145.A.50 (RA 4812) □ Other regulation specified in block 12

Certifies that unless otherwise specified in block 12, the work identified in block 11 and described in block 12,was accomplished in accordance with MRP Part 145 and in respect to that work the item(s) is (are) consideredready for release to service.

13b. Authorized Signature 13c. Approval/Authorization Number 14b. Authorized Signature 14c. Approval/Authorization Number

13d. Name 13e. Date (dd/mm/yyyy) 14d. Name 14e. Date (dd/mm/yyyy)

USER/INSTALLER RESPONSIBILITIESThis Certificate does not automatically constitute authority to install the item(s).Where the user/installer performs work in accordance with regulations of an airworthiness authority different than the airworthiness authority specified in block 1, it is essential that the user/installer ensures that their airworthiness authority accepts items fromthe airworthiness authority specified in block 1.Statements in blocks 13a and 14a do not constitute installation certification. In all cases ►Air System◄ maintenance records must contain an installation certification issued in accordance with the applicable regulations by the user/installer before the ►Air System◄ may be flown.

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RA 4810 - Technical Information (MRP 145.A.45)

Rationale ►The maintenance of Air Systems can be a complex and involved activity thatrequires the use of accurate, detailed Technical Information in order to ensuremaintenance personnel are working to current processes and procedures. Failure touse and adhere to the Technical Information published in the Air System DocumentSet (ADS) will adversely affect the Continuing Airworthiness of an Air System orcomponent, increasing the likelihood of an Occurrence and potentially Risk to Life.RA 4810 requires a Maintenance Organization (MO) to use current and approvedTechnical Information and to employ systems that enable the reporting ofunsatisfactory features and amendments.◄

Contents 4810(1): ►Use of◄ Approved and Current Technical Information(MRP 145.A.45(a))

4810(2): ►Scope of◄ Applicable Technical Information (MRP145.A.45(b))

4810(3): Requirement to Inform Technical Information Author ofErrors (MRP 145.A.45(c))

4810(4): Modification of Technical Information (MRP 145.A.45(d))

4810(5): Common Work Card or Work Sheet (MRP 145.A.45(e))

4810(6): Availability of Technical Information (MRP 145.A.45(f))

4810(7): Maintaining the Amendment State of TechnicalInformation (MRP 145.A.45(g))

Regulation

4810(1)

►Use of◄ Approved and Current Technical Information (MRP145.A.45(a))

4810(1) The organization shall hold and use applicable, approvedand current Technical Information in the performance ofmaintenance, including modifications and repairs. In thecase of Technical Information provided by the ContinuingAirworthiness Management Organization (CAMO), theorganization shall hold such data when the work is inprogress, noting the additional requirements of RA 4813(3)►– Management of Retained Maintenance Records◄ (MRP145.A.55(c)).


4810(1)

►Use of◄ Approved and Current Technical Information (MRP145.A.45(a))1. ►Nil.◄

GuidanceMaterial

4810(1)

►Use of◄ Approved and Current Technical Information (MRP145.A.45(a))2. ►Nil.◄

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Regulation

4810(2)

►Scope of◄ Applicable Technical Information (MRP 145.A.45(b))

4810(2) To complement its MAA02 definition►,◄ for the purposes of►MRP Part 145,◄ applicable Technical Information►1◄

shall ►also◄ include, but not be limited to, any of thefollowing:

a. Any applicable requirement, procedure, operationaldirective or information issued by the authorityresponsible for the oversight of the ►Air System◄ orcomponent.

b. Any applicable Special Instructions (Technical) (SI(T))or Airworthiness Directives (AD) issued by theauthority responsible for the oversight of the ►Air System◄ or component.

c. ►Continuing Airworthiness instructions◄ issued bythe MAA-approved Design Organization, or theCAMO.

d. Any applicable standard, such as, but not limited to,maintenance standard practices recognized by theMAA as a good standard for maintenance.

e. Any applicable information issued in accordance withRA 4810(4) ►– Modification of Technical Information◄ (MRP 145.A.45(d)).


4810(2)

►Scope of◄ Applicable Technical Information (MRP 145.A.45(b))3. An organization undertaking ►Air System◄ and/or uninstalled engine/AuxiliaryPower Unit (APU) maintenance should hold and use the following ►additional◄ Technical Information, where published:

a. The appropriate sections of the Air System Document Set►2◄, includingall relevant Technical Publications, or engine/APU Technical Publications,depending on the ►◄ organization’s planned ►scope of◄ work ►whether a◄Military Maintenance ►Organization (MMO)◄ or ►a contracted MO seekingapproval◄.

b. Service Bulletins, Service Letters and service instructions (all covered inthe MOD system by SI(T)s).

c. Modification leaflets.

d. Non-Destructive Testing/Non-Destructive Inspection manual.

e. ►◄

4. An organization undertaking component maintenance, other than completeengines/APUs, should hold and use the following ►additional◄ TechnicalInformation, where published:

a. The appropriate sections of the vendor maintenance and Repair manual.

b. MOD SI(T)s, Service Bulletins and Service Letters.

c. ►◄

5. An organization undertaking only specialized services (eg Non-DestructiveTesting) should hold and use all applicable specialized service(s) processspecifications.

1 ►Refer to RA 5401 – Provision of Technical Information.2 Refer to RA 1310(1) – Air System Document Set.◄

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GuidanceMaterial

4810(2)

►Scope of◄ Applicable Technical Information (MRP 145.A.45(b))Common GM

6. ‘Applicable’ means relevant to any ►Air System◄, component or processspecified in the organization’s approval class rating schedule or planned scope ofwork and in any associated capability list.

7. In relation to Paragraphs 1 and 2, ‘appropriate sections’ means the TechnicalInformation relevant to the scope of maintenance undertaken at each particularmaintenance facility.


8. Nil.

Additional GM - ►Approved Maintenance Organizations (AMOs)◄ only

9. ‘Technical Information’, as defined in MAA02, comprises a wider range ofdocumentation than the civil aviation term ‘Maintenance Data’, which may be morefamiliar to those AMOs ►utilizing◄ traditional civil aviation processes. However,within the context of its use in ►MRP Part 145◄, the term ‘Maintenance Data’ may beused in lieu of the term ‘Technical Information’ in such AMO’s documentation.

Regulation

4810(3)

Requirement to Inform Technical Information Author of Errors(MRP 145.A.45(c))

4810(3) The organization shall use a recognized procedure to ensurethat, if found, any ►errors3◄ in Technical Information usedby maintenance personnel is recorded and notified to theTechnical Information sponsor.


4810(3)

Requirement to Inform Technical Information Author of Errors(MRP 145.A.45(c))►◄

10. ►◄

►◄

11. ►◄

►◄

12. The ►◄ procedure should ensure that when maintenance personnel discoverinaccurate, incomplete or ambiguous information in the Technical Information they willrecord the details. The procedure should then ensure that the ►MO◄ notifies theproblem to the ►authorized◄ sponsor of the Technical Information in a timelymanner.

13. A record of such communications to the ►authorized◄ sponsor of theTechnical Information should be retained by the ►MO◄ until such time as the►authorized sponsor◄ has clarified the issue by, for example, amending theTechnical Information.

14. The ►◄ procedure should be specified in the Maintenance OrganizationExposition (MOE) ►or orders as applicable◄.

GuidanceMaterial

4810(3)

Requirement to Inform Technical Information Author of Errors(MRP 145.A.45(c))►◄

15. ►◄

►◄

3 ►Including inaccurate, incomplete or ambiguous Technical Information.◄

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GuidanceMaterial

4810(3)

16. ►◄

►◄

17. The preferred process for proposing amendments to Technical Information isthrough submission of a MOD Form 765, Unsatisfactory Feature Report ►(UFR). The MOD Form 765 UFR is used to notify and document subsequent actions relating to theproposed amendments to Technical Information in the Defence Air Environment.

18. When there is a perceived risk to personnel or equipment as a result of aTechnical Information shortfall, the organization may use a more expedient method tonotify the Technical Information sponsor; for example, by phone or by E-Mail. Theprocess to conduct such activity is to be agreed with the Technical Informationsponsor and must be included in associated orders and the MOE whereappropriate.◄

Regulation

4810(4)

Modification of Technical Information (MRP 145.A.45(d))

4810(4) The organization shall only modify Technical Information inaccordance with an approved procedure. ►For all modifications to Technical Information◄, the organizationshall demonstrate that they result in equivalent or improvedmaintenance standards and shall inform the TAA and CAMOor other approved organization of such changes.


4810(4)

Modification of Technical Information (MRP 145.A.45(d))Common AMC

19. Nil.


20. ►Nil.◄


21. The ►◄ procedure should address the need for the organization to seekauthority from the ►authorized sponsor◄ to deviate from relevant TechnicalInformation.

22. The procedure should include a ►requirement to retain a◄ paper/electronicrecord of the complete process from start to finish and ensure that the relevantTechnical Information clearly identifies the modification.

GuidanceMaterial

4810(4)

Modification of Technical Information (MRP 145.A.45(d))

►Common GM◄

23. For the purposes of ►this Regulation◄, ‘relevant Technical Information’ meansinstructions on how to carry out the particular maintenance task; they exclude theengineering design of Repairs and Modifications.

►Additional GM – MMOs Only

24. Deviation from Technical Information must be appropriately authorized4.

Additional GM – AMOs Only

25. Nil.◄

4 ►Refer to RA 4812(5) – Deferred and Incomplete Maintenance (MRP 145.A.50(e)).◄

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Regulation

4810(5)

Common Work Card or Work Sheet (MRP 145.A.45(e))

4810(5) The organization shall provide a common work card or worksheet system to be used throughout relevant parts of theorganization, to be used as follows:

a. The organization shall either transcribe accurately theTechnical Information►5◄ onto such work cards orwork sheets, or make precise reference to theparticular maintenance task or tasks contained in suchTechnical Information.

b. Work cards and work sheets that are computergenerated and held on an electronic database shallbe subject to both adequate safeguards againstunauthorized alteration and a back-up electronicdatabase, which shall be updated within 24 hours ofany entry made to the main electronic database.

c. Complex maintenance tasks shall be transcribed ontothe work cards or work sheets and subdivided intoclear stages to ensure a record of the accomplishmentof the complete maintenance task.

d. The organization shall establish processes to ensurethat all work cards and/or work sheets are completedin a correct and consistent manner.


4810(5)

Common Work Card or Work Sheet (MRP 145.A.45(e))►◄

26. ►◄

►◄

27. ►◄MOs should only record maintenance on ►sponsor6 approved◄ forms,work cards and work sheets►◄. Such documents should be completed inaccordance with the ►sponsor’s◄ respective Instructions for Use and processes►◄.

►◄

28. ►Work◄ cards should differentiate and specify, when relevant, disassembly,accomplishment of task, reassembly and testing.

GuidanceMaterial

4810(5)

Common Work Card or Work Sheet (MRP 145.A.45(e))Common GM

29. The terms ‘work card’ and ‘work sheet’ refer to the document on which amaintenance task or scheduled sequence of tasks have been pre-populated.Examples include, but are not limited to, a Topic 5 maintenance schedule, a MODF707MP and an authorized pre-printed maintenance work order.

30. In the case of a lengthy maintenance task involving a succession of personnelcompleting the task, it may be necessary to use supplementary forms, work cards orwork sheets to indicate what was accomplished by each individual person.


31. ►Nil◄.

5 ►Refer to RA 4810(2) – Applicable Technical Information (MRP 145.A.45(b)) and RA 4810(4) – Modification of Technical Information (MRP 145.A.45(d)).6 Air System and Air System equipment specific MOD Form 700 numerical series forms are sponsored by an authorized individualwithin a Project Team. The MAA sponsors all other MOD Form 700 numerical series forms.◄

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GuidanceMaterial

4810(5)


32. The term ‘relevant parts of the organization’ is used to mean, for example, ►Air System◄ base maintenance, ►Air System◄ line maintenance, engine workshops,mechanical workshops, avionic workshops, etc. Therefore, for example, engineworkshops will have a common system throughout such engine workshops, but thismay be different to the system used in ►Air System◄ base maintenance.

33. ►◄

34. ►Where an AMO is contracted to use the same form, work card or work sheet system as an MMO, they must comply with the same Instructions for Use andprocesses.◄

Regulation

4810(6)

Availability of Technical Information (MRP 145.A.45(f))

4810(6) The organization shall ensure that all applicable TechnicalInformation is readily available for use when required bymaintenance personnel.


4810(6)

Availability of Technical Information (MRP 145.A.45(f))35. Technical Information should be available in close proximity to the ►Air System◄ being maintained, for the relevant staff to study.

36. Where Technical Information is held electronically, or on microfilm/microfiche,the number of terminals to access the data should be sufficient in relation to the sizeof the work programme to enable easy access for supervisors, mechanics andcertifying staff.

GuidanceMaterial

4810(6)

Availability of Technical Information (MRP 145.A.45(f))37. Nil.

Regulation

4810(7)

Maintaining the Amendment State of Technical Information(MRP 145.A.45(g))

4810(7) The organization shall establish a procedure to ensure thatTechnical Information it controls is kept up to date. In thecase of an AMO using MOD-sponsored TechnicalInformation, the AMO shall be able to show that either it haswritten confirmation from the MOD that all such TechnicalInformation is up to date, or it has work orders specifying theamendment status of the Technical Information to be used,or it can show that it is on the MOD-sponsored TechnicalInformation amendment list.


4810(7)

Maintaining the Amendment State of Technical Information(MRP 145.A.45(g))►◄

38. ►◄

►◄

39. ►◄

►◄

40. To keep data up to date, a procedure should be set up to monitor theamendment status of all data and maintain a check that all amendments are beingreceived by being a subscriber to any document amendment scheme. Alternatively, asuitable arrangement should be made with the relevant ►CAMO◄ to receive data

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4810(7)

amendments.

41. Where Electronic Technical Publications, Logistic Information Systems ormicrofilm/microfiche readers are used, a control procedure should also be in place toensure that, where prints are produced, out of date data is not used.

GuidanceMaterial

4810(7)

Maintaining the Amendment State of Technical Information(MRP 145.A.45(g))42. Nil.

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RA 4811 - Maintenance Planning (MRP 145.A.47)

Rationale ►In order to successfully complete Air System and Air System componentmaintenance, an organization must consider the resources needed to achieve suchtasks in order to ensure Air System availability and compliance with MRP Part 145. Ifa Maintenance Organization (MO) fails to undertake adequate planning or implementan appropriate system of work, which considers Human Factors, there is an increasedrisk of maintenance error and risk to Airworthiness. RA 4811 details the requirementsfor an MO to have adequate management systems in place, tailored to meet thecomplexity of the work required in order to ensure its safe completion.◄

Contents 4811(1): Maintenance Planning System (MRP 145.A.47(a))

4811(2): Human Factors Limitations (MRP 145.A.47(b))

4811(3): Handover of Maintenance Tasks (MRP 145.A.47(c))

Regulation

4811(1)

Maintenance Planning System (MRP 145.A.47(a))

4811(1) The organization shall have a system appropriate to theamount and complexity of work to plan the availability of allnecessary personnel, tools, equipment, material, TechnicalInformation and facilities in order to ensure the safecompletion of the maintenance work.


4811(1)

Maintenance Planning System (MRP 145.A.47(a))1. For the purpose of ►MRP Part 145◄, the maintenance planning functionshould include 2 complementary elements:

a. Scheduling the maintenance work ahead, to ensure that it will notadversely interfere with other work with regards to the availability of allnecessary personnel, tools, equipment, material, Technical Information andfacilities.

b. During maintenance work, organizing maintenance teams and shifts andprovide all necessary support to ensure the completion of maintenance withoutundue time pressure.

2. When establishing the maintenance planning procedure, consideration shouldbe given to the following, where applicable:

a. Logistics, supply coordination and inventory control.

b. Square metres of working accommodation.

c. Man-hours estimation.

d. Man-hours availability.

e. Preparation of work.

f. Hangar availability.

g. Environmental conditions (access, lighting standards and cleanliness).

h. Scheduling of safety critical tasks.

GuidanceMaterial

4811(1)

Maintenance Planning System (MRP 145.A.47(a))Common GM

3. Nil.

Additional GM - Military Maintenance Organizations (MMOs) only

4. Due to the unpredictable variations in the scheduled work that most MMOsexperience, a documented Maintenance Planning System is not mandatory.

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GuidanceMaterial

4811(1)

However, the MMO must be able to demonstrate that it has established a system ofwork (shift patterns, internal logistics processes, etc) that is appropriate to the scopeof work it intends to conduct.

Additional GM - Approved Maintenance Organizations (AMOs) only

5. Depending on the amount and complexity of work generally performed by the►MO◄, the planning system may range from a very simple procedure to a complexorganizational set-up, including a dedicated planning function in support of themaintenance function.

Regulation

4811(2)

Human Factors Limitations (MRP 145.A.47(b))

4811(2) The planning of maintenance tasks, and the organizing ofshifts, shall take into account Human Factors Limitations.


4811(2)

Human Factors Limitations (MRP 145.A.47(b))6. Human Factors Limitations, in the context of ►this Regulation◄, refers to theupper and lower limits, and variations, of certain aspects of human performance(circadian rhythm, 24 hours body cycle, etc.) which personnel should be aware ofwhen planning work and shifts.

GuidanceMaterial

4811(2)

Human Factors Limitations (MRP 145.A.47(b))7. Nil.

Regulation

4811(3)

Handover of Maintenance Tasks (MRP 145.A.47(c))

4811(3) When it is required to hand over the continuation orcompletion of maintenance tasks for reasons of a shift orpersonnel changeover, relevant information shall beadequately communicated between outgoing and incomingpersonnel.


4811(3)

Handover of Maintenance Tasks (MRP 145.A.47(c))►◄

8. ►MOs◄ should have a procedure for shift and task handover, addressing thefollowing 3 elements:

a. The outgoing person’s ability to understand and communicate theimportant elements of the job or task being passed over to the incoming person.

b. The incoming person’s ability to understand and assimilate theinformation being provided by the outgoing person.

c. A formalized process for exchanging information between outgoing andincoming persons and a planned shift overlap and a place for such exchangesto take place.

►◄

9. ►◄

►◄

10.

GuidanceMaterial

4811(3)

Handover of Maintenance Tasks (MRP 145.A.47(c))11. Nil.

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RA 4812 - Certification of ►Air System Release◄ and ComponentRelease (MRP 145.A.50)

Rationale ►There is a chain of organizational and individual responsibility for all maintenance of military registered Air Systems and components carried out within the Defence AirEnvironment (DAE). Without a system for recording the certification and release of allcompleted maintenance, configuration control could be lost and Risk to Life increased.RA 4812 details the requirement for a maintenance organization to record thecertification and release of Air Systems and components from maintenance.◄

Contents 4812(1): Certification of ►Air System◄ Release (MRP 145.A.50(a))

4812(2): ►Air System◄ Release for Flight (MRP 145.A.50(b))

4812(3): New Faults (MRP 145.A.50(c))

4812(4): Certification of Component Release and Cannibalization(MRP 145.A.50(d))

4812(5): Deferred and Incomplete Maintenance (MRP 145.A.50(e))

►◄

Regulation

4812(1)

4812(2)

Certification of ►Air System◄ Release (MRP 145.A.50(a))

4812(1) The Certification of ►Air System◄ Release shall beendorsed by appropriately authorized certifying staff onbehalf of the organization when it has been verified that allmaintenance has been properly carried out by theorganization in accordance with approved procedures, takinginto account the availability and use of the TechnicalInformation ►(TI)1◄, and that there are no non-complianceswhich are known to endanger Air Safety.

►Air System◄ Release for Flight (MRP 145.A.50(b))

4812(2) The Certification of ►Air System◄ Release shall beendorsed before flight at the completion of any maintenanceon ►the Air System◄.


4812(1)

4812(2)


►Air System◄ Release for Flight (MRP 145.A.50(b))Common AMC

1. Nil.


2. ►Certification of Air System Release and Air System Release for Flight shouldbe recorded using MOD Form 700 documentation.◄


3. The Certification of ►Air System◄ Release should be accompanied by astatement declaring that the work has been carried out in accordance with theappropriate ►Regulations◄, as follows:

a. In the case of ►Air Systems◄ using the MOD Form 700 as the ►◄technical log, this statement is made by virtue of completing the paperwork inaccordance with the relevant ►◄ processes and the Instructions for Use of

1 ►Refer to RA 4810 – Technical Information (MRP 145.A.45).◄

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Acceptable

Means ofCompliance

4812(1)

4812(2)

each form; no further statement is required.

b. Where alternative documentation is used, the following statement shouldbe used: ‘Certifies that the work specified except as otherwise specified wascarried out in accordance with ►MRP Part 145◄ and in respect to that workthe ►Air System◄ is considered ready for use’.

4. The document on which the Certification of ►Air System◄ Release is endorsedshould:

a. Relate to the maintenance task ordered or the appropriate elements ofthe ►Air System◄ maintenance manual, which itself may cross-refer to otherTechnical Publications, Special Instructions (Technical) (SI(T)s), etc.

b. Include or refer to the date such maintenance was carried out and whenthe maintenance took place relative to any life or overhaul limitation in terms ofdate/flying hours/cycles/landings etc. as appropriate.

5. When extensive maintenance has been carried out and the documentcontaining the Certification of ►Air System◄ Release summarizes this maintenance,a unique cross-reference to the work package should be included. This workpackage should contain full details of maintenance carried out, retaining anydimensional information.

6. The person endorsing the Certification of ►Air System◄ Release should usehis normal signature except in the case where electronic certification is used. In thislatter case, the MAA will need to be satisfied that only the particular person canelectronically endorse the Certification of ►Air System◄ Release.

GuidanceMaterial

4812(1)

4812(2)


►Air System◄ Release for Flight (MRP 145.A.50(b))7. The Certification of ►Air System◄ Release is the act of completing the finalsignature/electronic authorization confirming the ►completion◄ of the ►preceding◄maintenance processes and every care must be taken in ensuring that suchcertification is correctly endorsed. For ►Air Systems◄ using the MOD Form 700 asthe ►◄ technical log, the Certification of ►Air System◄ Release is the signature onthe appropriate MOD Form ►707B◄ by an appropriately authorized individual ►◄.►Where authorized, Air System Release for Flight is the signature on the appropriate MOD Form 705.◄

8. ‘Endanger Air Safety’ means any instances where safe operation could not beassured or which could lead to an unsafe condition. It typically includes, but is notlimited to, significant cracking, deformation, corrosion or failure of primary structure,any evidence of burning, electrical arcing, significant hydraulic fluid or fuel leakageand any emergency system or total system failure. It does not include any Faults forwhich rectification has been deferred by an authorized individual►2 ◄.

9. When maintenance is certified using an electronic system, the use of amagnetic or optical personal card in conjunction with a ►Personal Identification Number◄ known only to the individual may be used. A certification stamp is optional.

10. ►◄

11. In the case of ►Air Systems◄ being maintained through traditional civilianaviation systems, the document on which the Certification of ►Air System◄ Releaseis endorsed may be named the ‘Certificate of Release to Service’.

Regulation

4812(3)

New Faults (MRP 145.A.50(c))

4812(3) New Faults or incomplete maintenance work orders identifiedduring ►Air System◄ maintenance shall be brought to theattention of the appropriate engineering manager and/or the►Mil CAMO◄ for the specific purpose of obtainingagreement to rectify such Faults or completing the missing

2 ►Refer to RA 4812(5) – Deferred and Incomplete Maintenance (MRP 145.A.50(e)).◄

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Regulation

4812(3)

elements of the maintenance work order. In the case wherethe appropriate engineering manager and/or the ►Mil◄ CAMO declines to have such maintenance carried out underthis paragraph, RA 4812(5) ►– Deferred and Incomplete Maintenance◄ (MRP 145.A.50(e)) shall be applicable.


4812(3)

New Faults (MRP 145.A.50(c))►◄

12. ►◄

►◄

13. ►◄

►◄

14. Referral to the ►Mil◄ CAMO should take place when the rectification of suchFault or completion of such maintenance will affect the ►Air System’s◄ availability tothe respective Front Line Command.

15. ►An Air System or component should be considered unserviceable andtherefore requiring corrective maintenance (unless such maintenance is deferred2)whenever:

a. A Fault is reported to, or detected by, the maintenance organization.

b. A loose article is suspected or confirmed.

c. A component/item is cannibalized.◄

GuidanceMaterial

4812(3)

New Faults (MRP 145.A.50(c))16. ►Nil.◄

Regulation

4812(4)

Certification of Component Release and Cannibalization (MRP145.A.50(d))

4812(4) A document containing the Certification of ComponentRelease shall be issued on the following occasions:

a. At the completion of any maintenance on a componentwhilst off the ►Air System◄.

Note:When an AMO maintains a component for its own use, a formalCertificate of Component Release may not be necessary, but theorganization’s internal release procedures shall be defined in theMaintenance Organization Exposition (MOE).

b. When a component is removed as serviceable from an►Air System◄ or assembly ►◄.

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4812(4)

Certification of Component Release and Cannibalization(MRP 145.A.50(d))Common AMC

17. ►A component which has been maintained off the Air System should beendorsed by appropriately authorized certifying staff3 with a Certification ofComponent Release on a MOD Form 7314 or UK MAA Form 15, for suchmaintenance, with one exception as detailed in the Regulatory Statement6.◄


18. ►◄

19. Cannibalization of parts from ►Air Systems◄ and uninstalled ►Air System◄ equipment should be strictly controlled and documented ►by appropriately authorized personnel3◄.


20. ►◄

21. The appropriately-rated AMO should ensure that all reasonable measures havebeen taken to ensure that only approved and serviceable ►Air System◄ componentsare endorsed with a Certification of Component Release. Such certification shouldnot be endorsed for any item when it is known that the item is unserviceable, except inthe case of an item undergoing a series of maintenance processes at severalmaintenance organizations and a document containing a Certification of ComponentRelease is required to accompany the component to enable an organization to acceptthe item for subsequent maintenance processes. In this instance, a clear mark of thecomponent’s serviceability (or a Statement of Limitation) should be endorsed with theCertification of Component Release.

22. The Certification of Component Release endorsed in accordance with ►this Regulation◄ should be annotated with a statement confirming that the item has beeninspected. In addition, the following should be specified:

a. When the last maintenance was carried out and by whom.

b. If the component is unused, when the component was manufactured andby whom with a cross reference to any original documentation, which should beincluded with the certificate.

c. A list of all Airworthiness Directives (ADs)/SI(T)s, repairs andmodifications known to have been incorporated or, if no ADs/SI(T)s, repairs ormodifications are known to be incorporated, then this should be so stated.

d. Detail of life used for service life limited parts being any combination offatigue, overhaul or storage life.

e. Details, if applicable, of the ►Air System◄ component’s maintenancehistory record, as long as the record contains details that would otherwise berequired on the Certificate of ►Component Release◄. The maintenancehistory record and acceptance test report or statement, if applicable, should beattached to the Certificate of ►Component Release◄.

Note:

Where the Certification of Component Release is endorsed on a MOD Form731, completed in accordance with the appropriate Instructions for Use, itmeets the requirements of Paragraph ►22◄.

New/Unused ►Air System◄ components - AMOs only

23. If a Certification of Component Release is to be endorsed for a stored and

3 ►Refer to RA 4806(5) – Personnel Competences and Authorization (MRP 145.A.30(d)).◄4 Completed in accordance with the instructions in the ►Manual of Maintenance and Airworthiness Processes Supplement - MOD form 700 Series of Forms◄.5 Completed to the requirements specified in RA 4809(1) - Component Classification (MRP 145.A.42(a)).6 ► The note to RA 4812(4)a (MRP 145.A.50(d)a).◄

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4812(4)

unused ►Air System◄ component without an existing Certification of ComponentRelease endorsed in accordance with ►this Regulation◄, the following should becontained within the procedure for endorsing the Certification of Component Release,which should be defined within the MOE:

a. An acceptance test report or statement should be available for all usedand unused ►Air System◄ components that are subjected to acceptancetesting after manufacturing or maintenance►◄.

b. The ►Air System◄ component should be inspected for compliance withthe manufacturer’s instructions and limitations for storage and condition,including any requirement for limited storage life, inhibitors, controlled climateand special storage containers. In addition, or in the absence of specificstorage instructions, the ►Air System◄ component should be inspected fordamage, corrosion and leakage to ensure good condition.

c. The storage life used of any storage life limited parts should beestablished.

d. If it is not possible to establish satisfactory compliance with all applicableconditions specified in sub-Paragraphs ►23a◄ to ►23c◄ inclusive, the ►Air System◄ component should be disassembled by an appropriately rated AMOand subjected to a check for incorporated ADs/SI(T)s, repairs and modificationsand inspected/tested in accordance with the manufacturer’s maintenanceinstructions to establish satisfactory condition and, if relevant, all seals,lubricants and life limited parts replaced. On satisfactory completion afterreassembly, a Certification of Component Release may be endorsed statingwhat was carried out and the reference of the manufacturer’s maintenanceinstructions included.

24. The certification/release of a stored but unused ►Air System◄ component inaccordance with Paragraph ►23◄ should be considered as a maintenance releaseunder ►MRP Part 145◄ and not a production release. It is not intended to bypass aproduction release procedure agreed by the MAA for parts and subassembliesintended for fitment on the manufacturer’s own production line.

Components removed as serviceable from an ►Air System◄- AMOs only

25. If a Certification of Component Release is to be endorsed for a serviceable►Air System◄ component removed from a UK military registered ►Air System◄, thefollowing should be complied with:

a. The AMO should ensure that the component was removed from the►Air System◄ by an appropriately ►authorized◄ person.

b. The ►Air System◄ component should only be deemed serviceable ifthe last flight operation with the component fitted revealed no Faults on thatcomponent/related system.

c. The ►Air System◄ component should be inspected for satisfactorycondition including in particular damage, corrosion or leakage and compliancewith any additional manufacturer’s maintenance instructions.

d. The ►Air System maintenance records◄ should be researched for anyunusual events that could affect the serviceability of the ►Air System◄component such as involvement in accidents, incidents, heavy landings orlightning strikes. Under no circumstances should a Certification of ComponentRelease be endorsed if it is suspected that the ►Air System◄ component hasbeen subjected to extremes of stress, temperatures or immersion.

e. A maintenance history record should be available for all used serialized►Air System◄ components.

f. Any Modification embodiment and previous Repairs should beestablished.

g. The flight hours/cycles/landings as applicable of any service life limitedparts including time since overhaul should be established.

h. Compliance with known applicable ADs/SI(T)s should be established.

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4812(4)

i. Any maintenance required by the Type Airworthiness Authority (TAA) or►Mil◄ CAMO should be carried out (for example, a Standard ServiceabilityTest).

j. The ►document◄ containing the Certification of Component Releaseshould contain the information as specified in Paragraph ►23◄, including theidentification of the ►Air System◄ from which the ►Air System◄ componentwas removed.

26. Certification of Component Release for serviceable ►Air System◄ componentsremoved from any ►Air System◄ other than a UK military registered ►Air System◄should only be endorsed if the components are leased or loaned from a maintenanceorganization approved under ►MRP Part 145◄, who retains control of theAirworthiness status of the components.

Components removed from an ►Air System◄ withdrawn from service - AMOsonly

27. If a Certification of Component Release is to be endorsed for a serviceable►Air System◄ component removed from a UK military registered ►Air System◄withdrawn from service, the following should be complied with:

a. ►Air Systems◄ withdrawn from service and dismantled for sparesshould only be accomplished under the control of an AMO, employingprocedures approved by the MAA.

b. To be eligible for installation, components removed from such ►Air Systems◄ should be endorsed with a Certification of Component Release byan appropriately rated AMO following a satisfactory assessment, as detailed inthis AMC.

c. As a minimum, the assessment should satisfy the standards set out inParagraphs ►25◄ and ►26◄, as appropriate. This should, where known,include the possible need for the alignment of scheduled maintenance that maybe necessary to comply with the maintenance programme applicable to the►Air System◄ on which the component is to be installed.

d. The AMO responsible for certifying any removed component shouldsatisfy itself that the manner in which the components were removed and storedare compatible with the ►requirements of MRP Part 145◄.

e. A structured plan should be formulated to control the ►Air System◄ disassembly process. The disassembly should be carried out by anappropriately rated AMO, under the supervision of certifying staff, who►should◄ ensure that the ►Air System◄ components are removed anddocumented in a structured manner in accordance with the appropriate ►TI◄and disassembly plan.

f. All recorded ►Air System◄ Faults should be reviewed and the possibleeffects these may have on both normal and standby functions of removedcomponents are to be considered.

g. Dedicated control documentation should be used as detailed by thedisassembly plan, to facilitate the recording of all maintenance actions andcomponent removals performed during the disassembly process. Componentsfound to be unserviceable should be identified as such and quarantinedpending a decision on the actions to be taken. Records of the maintenanceaccomplished to establish serviceability should form part of the componentmaintenance history.

h. Suitable ►MRP Part 145◄ facilities for the removal and storage ofremoved components should be used, which include suitable environmentalconditions, lighting, access equipment, ►Air System◄ tooling and storagefacilities for the work to be undertaken. While it may be acceptable forcomponents to be removed, given local environmental conditions, without thebenefit of an enclosed facility, subsequent disassembly (if required) and storageof the components should be in accordance with manufacturer’srecommendations.

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4812(4)

Components maintained by organizations without MAA approval - AMOs only

28. If a Certification of Component Release is to be endorsed for a used componentmaintained by a maintenance organization without ►MRP Part 145◄ approval, anappropriately rated ►AMO◄ should establish satisfactory conditions by:

a. Dismantling the component for sufficient inspection in accordance withthe appropriate ►TI◄.

b. Replacing of all service life limit components when no satisfactoryevidence of life used is available and/or the components are in an unsatisfactorycondition.

c. Reassembling and testing the component as necessary.

d. Completing all certification requirements as specified in ►this Regulatory Article◄.

Components removed from an ►Air System◄ involved in an accident orincident - AMOs only

29. Components removed from ►Air Systems◄ involved in an accident or incident(including, but not limited to heavy landings and lightning strikes) should only beendorsed with a Certification of Component Release when processed in accordancewith Paragraph ►25◄ and a specific work order including all additional tests andinspections made necessary by the accident or incident. Such a work order mayrequire input from the TAA or MAA-approved Design Organization, as appropriate.This work order should be referenced with the Certification of Component Release.

GuidanceMaterial

4812(4)

Certification of Component Release and Cannibalization (MRP145.A.50(d))Common GM

30. ►The MOD Form 731 or equivalent7 are the only documents upon which theCertification of Component Release can be made. They serve as an official certificatefor items released from an AMO or MMO to users. The Certification of ComponentRelease is not a delivery or shipping note.◄


31. ►Personnel endorsing the Certification of Component Release must comply with the maintenance policy of the items concerned, as specified in the item’s specificTI and any other instructions issued by the appropriate TAA.

32. Items must be endorsed with a Certification of Component Release:

a. Prior to transfer between maintenance organizations.

b. Prior to movement within the same maintenance organization from onework location to another, for the purpose of further maintenance orreinstallation.

c. When the item is the subject of Cannibalization and is transferredbetween a Station, Ship or Unit.

d. Prior to return to the supply/logistic organization for whatever reason.

33. The person endorsing the Certification of Component Release for an item mustensure that the item is correctly prepared for subsequent movement or storage onUnit.

34. Removal of components as serviceable from an Air System for Cannibalizationpurposes must only be authorized when all of the following circumstances apply:

a. The item is required urgently to restore another Air System toserviceability.

b. Engineering or supply personnel, as appropriate, have checked all

7 ►Refer to RA 4809 – Acceptance of Components (MRP 145.A.42).◄

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GuidanceMaterial

4812(4)

possible sources of uninstalled spares on the Station/Ship/Unit, considered localmanufacture7, Repair or local purchase.

c. A logistics demand of the appropriate priority has been placed and thedelivery forecast is such that the item will not be available within the requiredtimescale.

d. Where possible, if the part must be transferred between lifed assemblies,including engines, the residual life on the item fitted must be at least equal tothat of the item being removed.◄


35. The purpose of the Certification of Component Release is to:

a. Release assemblies/items/components/parts (referred to throughout►this Regulation◄ as ‘item(s)’) after maintenance.

b. Allow items removed from one ►Air System or Air System◄ componentto be fitted to another ►Air System or Air System◄ component followingCannibalization.

36. The Certification of Component Release for a component does not remove theneed for further certification►8◄ to be carried out in regard to a component beinginstalled properly on the ►Air System◄ when such action occurs►◄.

37. In addition to the Certification of Component Release for a componentmaintained by the organization, an appropriately rated organization under ►MRP Part 145◄ may also endorse a Certification of Component Release for an ►Air System◄component on the following occasions, as detailed in the AMC to this Regulation:

a. A component maintained before the Maintenance Approved OrganizationScheme became effective, or manufactured before the Design ApprovedOrganization Scheme became effective.

b. A component used on an ►Air System◄ and removed in a serviceablecondition (a process known in the ►DAE◄ as Cannibalization).

c. A component removed from an ►Air System◄ which has beenwithdrawn from service, or from an ►Air System◄ which has been involved inabnormal occurrences such as accidents, incidents, heavy landings or lightningstrikes.

d. Components maintained by an organization not approved under ►MRP Part 145◄.

38. ►◄

39. The certificate containing the Certification of Component Release may be usedas a rotable tag/label by utilizing the available space for any additional information anddespatching the item with 2 copies of the certificate so that one copy may beeventually returned with the item to the maintenance organization. The alternativesolution is to use existing rotable tags/label and also supply a copy of the certificate.

40. For the purposes of ►this Regulation◄, ‘appropriately rated’ means anorganization with an approval class rating for the type of component or for the productin which it may be installed.

Regulation

4812(5)

Deferred and Incomplete Maintenance (MRP 145.A.50(e))

4812(5) By derogation to RA 4812(1) ►– Certification of Air System Release◄ (MRP 145.A.50(a)), an organization may endorsea Certification of ►Air System◄ Release on the followingoccasions:

a. When an appropriately authorized individualagrees to defer outstanding corrective or

8 ►Refer to RA 4812(1) – Certification of Air System Release (MRP 145.A.50(a)) and RA 4812(2) – Air System Release for Flight (MRP 145.A.50(b)).◄

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Regulation

4812(5)

preventive maintenance. Such maintenanceshall only be deferred if considered justifiableand safe.

b. When an AMO is unable to complete allmaintenance ordered, it may endorse aCertification of ►Air System◄ Release withinthe approved ►Air System◄ limitations. Theorganization shall enter such fact on thedocument containing the Certification of ►Air System◄ Release before its issue.

Note:

In all instances, details of any deferred or incompletemaintenance shall be entered in the ►◄ technical log byappropriately authorized ►individuals◄, who have made thejudgement that the ►Air System◄ is safe to fly, with appropriatelimitations and constraints caveated, despite incompletemaintenance.


4812(5)

Deferred and Incomplete Maintenance (MRP 145.A.50(e))Common AMC

41. Nil.


42. ►Out-of-limit Faults and damage should be notified to the Mil CAMO9 usingprocesses that are documented in the relevant Continuing Airworthiness ManagementExposition (CAME).

43. In cases where a Fault or damage is not recognized in the Air SystemDocument Set or TI, the Mil CAMO should be notified using processes that aredocumented in the relevant CAME.◄


44. If an appropriately authorized individual agrees to the deferment ofmaintenance, then details of the deferment, including, where applicable, reference tosuch approval for deferment, should be entered in the ►◄ technical log (eg MODForm 700) and sanctioned by an authorized individual.

Note:

Whether or not the individual authorizing the deferment has such authority todefer maintenance is an issue between the organization and the contractingorganization►10◄, where applicable. In case of doubt concerning such adecision the AMO should inform the ►Mil◄ CAMO of such doubt, beforereleasing the ►Air System◄.

45. The procedure for complying with ►this Regulation◄ should:

a. Draw attention to the fact that RA 4812(1) ►– Certification of Air System Release◄ (MRP 145.A.50(a)) does not normally permit the endorsement of theCertification of ►Air System◄ Release in the case of non-compliance.

b. State what action the mechanic, supervisor and certifying staff arerequired to take to bring the matter to the attention of the ►Mil◄ CAMO, so that

9 ►Refer to RA 4947(1) – Military Continuing Airworthiness Management Organization (Mil CAMO) Responsibilities. 10 Refer to RA 1006 – Delegation of Engineering Authorizations.◄

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the issue may be discussed and resolved with the ►Mil◄ CAMO.

c. Ensure that the appropriate person(s)►11◄ is kept informed in writing ofsuch possible non-compliance situations.

GuidanceMaterial

4812(5)

Deferred and Incomplete Maintenance (MRP 145.A.50(e))Common GM

46. ►On occasions when a maintenance activity cannot comply with relevant TI, or there is insufficient resource, the maintenance must remain incomplete. However, anoperational requirement may necessitate a maintenance activity being completed priorto resources becoming available or prior to an approved and promulgated TIamendment being issued1 by the TAA. In such cases, the Mil CAMO must beconsulted for deferment of such maintenance and/or deviation from the TI.

47. Deferring maintenance and deviating from TI carries risk. When consideringdeferment or deviation, the authorized individual must assess the associated risks andconsider all factors that will mitigate the risk and ensure the Air System is airworthy.The mitigating factors must be adequately documented in the appropriatemaintenance work order.◄


48. ►Air Systems on continuous charge remain under the control of the Aircraft Commander12 who may accept Faults between successive flights. On landingbetween flights, the Aircraft Commander must complete their post-flight reporting ofFaults. If it is considered that a Fault is unacceptable for further flight, the Air Systemwill be declared unserviceable and returned to the responsible maintenanceorganization13.◄


49. Where the ►Military◄ authorization system is adopted by an AMO, theauthorization to defer maintenance must be controlled►10◄.

50. Being unable to establish full compliance with RA 4812(1) ►– Certification of Air System Release◄ (MRP 145.A.50(a)) means that the maintenance required by the►Air System◄ operator could not be completed due either to running out of available►Air System◄ maintenance downtime for the scheduled check or by virtue of thecondition of the ►Air System◄ requiring additional maintenance downtime.

51. The purpose of ►this Regulation◄ is to govern the situation when a ►Mil◄CAMO permits an AMO to endorse a Certification of ►Air System◄ Release, butfurther maintenance is required before the ►Air System◄ can be declaredserviceable. ►◄

11 ►Refer to RA 4806(2) – Personnel Responsible to the Accountable Manager (Maintenance) (MRP 145.A.30(b)).12 Refer to RA 2115 – Aircraft Commanders.13 Refer to RA 2210 – Flight Servicing and Continuous Charge Operations.◄

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RA 4813 - Maintenance Records (MRP 145.A.55)

Rationale ►A record of all maintenance activities carried out on military registered Air Systems and Air System components is required to provide an audit trail of the work and toenable quality assurance, data exploitation and investigations. Without a sufficientlevel of maintenance recording, the Continuing Airworthiness of an Air System couldbe compromised, potentially increasing Risk to Life. RA 4813 establishes therequirement for the minimum level of work recording, record retention and themanagement of such records.◄

Contents 4813(1): Recording and Retention of Maintenance Work(MRP 145.A.55(a))

4813(2): Copies of Maintenance Records (MRP 145.A.55(b))

4813(3): Management of Retained Maintenance Records(MRP 145.A.55(c))

Regulation

4813(1)

Recording and Retention of Maintenance Work (MRP 145.A.55(a))

4813(1) The organization shall record all details of maintenance workcarried out. As a minimum, the organization shall retainrecords necessary to prove that all requirements have beenmet for endorsing the Certification of ►Air System◄/Component Release, including subcontractor'scertificates/release documents, where applicable.


4813(1)

Recording and Retention of Maintenance Work (MRP 145.A.55(a))Common AMC

1. Nil.


2. MMOs should record details of maintenance work using the MOD Form 700documentation ►in accordance with the appropriate Instructions for Use and procedures◄.

3. All maintenance work carried out on ►Air Systems◄ and ►Air System◄equipment should be recorded and certified ►by an appropriately authorized person1◄.

4. MMOs should retain ►◄ maintenance records ►if the information they contain continues to be pertinent to the Continuing Airworthiness of an Air System.Maintenance records should be retained for a period determined by the form sponsorand, if relevant, in consultation with the relevant Type Airworthiness Authority (TAA).◄


5. ►To ensure traceability to installed Air System component documentation and associated Technical Information2,◄ records should contain basic details of allserialized ►Air System◄ components installed.

6. Maintenance records should refer to the revision status of the TechnicalInformation used.

7. The maintenance record can be either a paper or computer system or anycombination of both.

a. Paper systems should use robust material which can withstand normalhandling and filing. The record should remain legible throughout the required

1 ►Refer to RA 4806(5) – Personnel Competences and Authorization (MRP 145.A.30(e)).2 Refer to RA 4810 – Technical Information (MRP 145.A.45).◄

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4813(1)

retention period.

b. Computer systems used for maintenance should have at least onebackup system, which should be updated at least within 24 hours of anymaintenance. Each terminal should contain programme safeguards againstthe ability of unauthorized personnel to alter the database.

8. Some gas turbine engines are assembled from modules and a true total time inservice for a total engine is not kept. When such an engine is being maintained, thetotal time in service and maintenance records for each module should be kept. Themaintenance records as specified should be kept with the module and showcompliance with any mandatory requirements pertaining to that module.

9. AMOs should describe document retention and transfer procedures ►, as directed by the relevant TAA,◄ within the Maintenance Organization Exposition(MOE).

GuidanceMaterial

4813(1)

Recording and Retention of Maintenance Work (MRP 145.A.55(a))Common GM

10. ► Certification of Air System or Air System equipment maintenance is required to provide a fully auditable record of the work carried out. It must identify uniquely,those responsible for the work in a manner that can be authenticated. When certifyinga maintenance record, a person is implicitly stating that they have completed orsupervised the maintenance task in accordance with applicable TechnicalInformation2, orders, Instructions for Use, procedures and processes.

11. A full detailed description of the work carried out must include the following,where appropriate:

a. Reference to any Technical Information that was used to aid the task(including the amendment state of the publication).

b. Serial number, and life recording data, of any item/component removedas part of that task.

c. The batch number of consumables used as part of the item/componentrefit or reconnection when batch details are known, detailed on un-broachedequipment packaging, or on acceptable accompanying documentation.

d. The serial number of any calibrated tools, equipment, and particularly testequipment, used to confirm the serviceability of an Air System.

12. When more than one person is detailed to work on a maintenance task, eachperson must be identified and sign for the work they complete within that task.

13. Parts dismantled or components removed for access or if replaced require anappropriate record to this effect. The record must contain the complete nomenclatureand serial number of such items and must refer to any associated TechnicalInformation2 references that describe its removal.

14. Completed documentation that continues to be relevant in support ofAirworthiness investigations must also be retained.

15. When electronic means are used to record maintenance carried out, electronicsignatures will be considered as legally equivalent to those made on hardcopymaintenance documents.

16. Properly executed and retained records provide information essential incontrolling unscheduled and scheduled maintenance and troubleshooting to eliminatethe need for re-inspection and additional work to establish Airworthiness. The primeobjective is to have secure and easily retrievable records with comprehensive andlegible contents.◄


17. ►To maintain configuration control, new forms must not be created and used within the MOD Form 700 series unless endorsed by the MAA3.◄

3 ►Refer to MAA03: MAA Regulatory Processes.◄

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GuidanceMaterial4813(1)


18. ►Nil.◄

Regulation

4813(2)

Copies of Maintenance Records (MRP 145.A.55(b))

4813(2) The AMO shall provide a copy of each document relating tothe Certification of ►Air System◄/Component Release tothe relevant Continuing Airworthiness ManagementOrganization (CAMO), together with a copy of any specificapproved repair/modification instructions used forrepairs/modifications carried out.


4813(2)

Copies of Maintenance Records (MRP 145.A.55(b))19. Nil.

GuidanceMaterial

4813(2)

Copies of Maintenance Records (MRP 145.A.55(b))20. Nil.

Regulation

4813(3)

Management of Retained Maintenance Records (MRP 145.A.55(c))

4813(3) The organization shall manage retained copies of all detailedmaintenance records and any associated TechnicalInformation, as instructed by the MAA, such that:

a. Records under ►this Regulation◄ shall be stored ina safe way with regard to fire, flood and theft.

b. Computer backup discs, tapes, etc shall be stored ina different location from that containing the workingdiscs, tapes, etc, in an environment that ensures theyremain in good condition.

c. Where an AMO terminates its operation, all retainedmaintenance records shall be transferred to therelevant CAMO.


4813(3)

Management of Retained Maintenance Records (MRP 145.A.55(c))Common AMC

21. Nil.


22. ►◄

23. The MOD Form 700 documents should be kept in safe custody, kept free fromdefacement and kept legible at all times.

24. ►Maintenance records◄ may be scanned and stored electronically, butshould be subject to certification that the electronic copy is a true, legible andcomplete facsimile of the original. Such electronic storage of documentation should►meet the same requirements as those for the hard copy.

25. In the event that maintenance records are lost, corrupted or inaccurate, theCAMO should be consulted4.◄

4 ►Refer to RA 4964(2) – Continuing Airworthiness Records.◄

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4813(3)


26. Maintenance records should be retained until the work it records has beeninvalidated by documented work carried out subsequently (for example, routineelements of Scheduled Base Maintenance (SBM), Major maintenance, or equivalent)►◄.

27. In addition, maintenance records for ►Air Systems◄ subject to Civil AviationAuthority (CAA) oversight should be kept for a minimum of 3 years from the date the►Air System◄ or component to which the work relates was released from theorganization.

28. Any reconstructed records should be submitted to the CAMO for acceptance.

GuidanceMaterial

4813(3)

Management of Retained Maintenance Records (MRP 145.A.55(c))Common GM

29. ‘Associated Technical Information’ is specific information such as repair andmodification instructions. This does not necessarily require the retention of allTechnical Publications.


30. ►Nil.◄


31. The term “terminates its operation” in ►this Regulation◄ is deemed to meanthe ending of the contractual relationship with the MOD and thus the cessation of anAMO’s approval.

32. Reconstruction of lost or destroyed records can be done by reference to otherrecords which reflect the time in service, research of records maintained by repairfacilities and reference to records maintained by individual mechanics, etc. Whenthese things have been done and the record is still incomplete, the CAMO may makea statement in the new record describing the loss and establishing the time in servicebased on the research and the best estimate of time in service.

Note:

Additional maintenance may be required.

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RA 4814 - Occurrence Reporting (MRP 145.A.60)

Rationale ►Accurate and timely Occurrence reporting and effective investigation is fundamental to identifying Air Safety risks and delivering effective mitigation. UnreportedOccurrences, or failure to correctly capture and analyse such reporting, could lead topreventable and avoidable accidents, which compromise Air Safety and potentiallyincrease Risk to Life. RA 4814 requires Maintenance Organizations to establish andutilize a reporting system for all Air Safety Occurrences, reportable Faults and qualityissues.◄

Contents 4814(1): Unsafe Condition Reporting (MRP 145.A.60(a))

4814(2): Internal Occurrence reporting (MRP 145.A.60(b))

4814(3): MOD Sponsored Reporting Action (MRP 145.A.60(c))

►◄

►◄

Regulation

4814(1)

Unsafe Condition Reporting (MRP 145.A.60(a))

4814(1) The organization shall report ►◄ any condition of the ►Air System◄ or component ►◄ that has resulted or may resultin an unsafe condition that is a hazard to Air Safety.


4814(1)

Unsafe Condition Reporting (MRP 145.A.60(a))1. All equipment in the ►Defence Air Environment (DAE)◄ should be subject toFault reporting procedures.

GuidanceMaterial

4814(1)

Unsafe Condition Reporting (MRP 145.A.60(a))2. This Regulation must be read in conjunction with:

a. ►The requirements1 for MOD Occurrence reporting.

b. The requirements2 for DAE quality policy.

c. The Regulation3 that details the methods of reporting to be followedwithin the DAE.

d. The requirements4 for Fault reporting.◄

Regulation

4814(2)

Internal Occurrence Reporting (MRP 145.A.60(b))

4814(2) The organization shall establish an internal Occurrencereporting system to enable the collection and evaluation ofsuch reports, including the assessment and extraction ofthose Occurrences to be reported►5◄.


4814(2)

Internal Occurrence Reporting (MRP 145.A.60(b))Common AMC

3. ►The system should identify adverse trends, corrective actions taken, or to betaken, by the organization to address deficiencies and include evaluation of all knownrelevant information relating to such Occurrences including a method to circulate theinformation as necessary.

1 ►Refer to RA 1410 – Occurrence Reporting.2 Refer to RA 4700 – Military Air Environment Quality Policy.3 Refer to RA 4814(3) – MOD Sponsored Reporting Action (MRP 145.A.60(c)).4 Refer to RA 5404 – Fault Reporting and Investigation for Contractors.5 Refer to RA 4814(1) – Unsafe Condition Reporting (MRP Part 145.A.60(a)).◄

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4814(2)

4. An organization should ensure that personnel are not reprimanded for reportingor co-operating with Occurrence investigations.

5. The internal reporting process should be closed-loop, ensuring that actions aretaken internally to address safety hazards.

6. The process should provide feedback to report originators, both on anindividual and more general basis, since it is important to ensure their continuedsupport for the scheme.

7. Defence Air Safety Occurrence Reports (DASORs), raised using the AviationSafety Information Management System (ASIMS), should be used to report thoseinternal Occurrences that are deemed ‘reportable Air Safety Occurrences’1.◄


8. Nil.

Additional AMC - ►Approved Maintenance Organizations (AMOs)◄ only

9. The ►system◄ should be defined in the Maintenance OrganizationExposition.

10. ►◄

11. ►◄

12. ►◄

13. ►◄

GuidanceMaterial

4814(2)

Internal Occurrence Reporting (MRP 145.A.60(b))Common GM

14. The aim of Occurrence reporting is to identify the factors contributing toincidents and to make the system resistant to similar errors. An Occurrence reportingsystem must therefore enable and encourage free and frank reporting of any(potentially) safety related Occurrence. This will be facilitated by the establishment ofa ‘Just Culture’►6◄.

15. ►◄ MOD Occurrence reporting ►requirements1◄ must be read in conjunctionwith this ►Regulation◄, noting that ►the requirements1 do◄ not differentiatebetween internal and external Occurrence reporting. ►◄ Adherence to theseprocesses will satisfy the requirements of ►this Regulation◄ when augmented by asuitable internal closed-loop system to report ►Occurrences◄ that do not necessarilyrequire a DASOR to be raised.


16. Where implemented by the relevant Operating Duty Holder Flight SafetyOrganization, MMOs may utilize hardcopy Error Management System Report Forms,as part of the Defence Aviation Error Management System (DAEMS), to report internalOccurrences where Air Safety was not compromised, but the potential for Air Safety tobe compromised in the future was recognized. Further guidance on the DAEMS isavailable on the MAA Website7.


17. Nil.

Regulation

4814(3)

MOD Sponsored Reporting Action (MRP 145.A.60(c))

4814(3) The organization shall ►ensure that all◄ reports ►are submitted◄ in a form and manner established by the MAAand ensure that they contain all ►required◄ information►◄.

6 ►As defined in MAA02: MAA Master Glossary.7 www.gov.uk/government/collections/reporting-air-safety-concerns.◄

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4814(3)

MOD Sponsored Reporting Action (MRP 145.A.60(c))18. Extant MOD procedures for Occurrence reporting should be used, including theuse of ASIMS. ►◄

a. ►◄

b. ►◄

c. ►◄

GuidanceMaterial

4814(3)

MOD Sponsored Reporting Action (MRP 145.A.60(c))19. ►Further details of Occurrence1, quality2 and Fault reporting4 are publishedwithin the applicable MAA Regulatory Publications.◄

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RA 4815 - Maintenance Procedures and Safety and Quality Policy(MRP 145.A.65)

Rationale ►Maintenance organizations within the Defence Air Environment (DAE) undertake a wide range of complex maintenance activity on Air Systems and Air Systemcomponents in the course of their duty or contract. Without a system of assurancethat such maintenance is being undertaken to a standard directed by procedures andTechnical Information, the validity of any release statement1 may be undermined.RA 4815 details the requirements for a maintenance organization to operate with adefined quality policy and establish a Quality Management System to deliverassurance of approved maintenance procedures.◄

Contents 4815(1): Organization Safety and Quality Policy (MRP 145.A.65(a))

4815(2): Procedures for Good Maintenance Practices(MRP 145.A.65(b))

4815(3): Quality System (MRP 145.A.65(c))

Regulation

4815(1)

Organization Safety and Quality Policy (MRP 145.A.65(a))

4815(1) Military Maintenance Organizations (MMOs) shall operatewithin the Air Safety Management System (ASMS) developedby the relevant Duty Holder and the applicable single-Servicequality policy►2◄.

Approved Maintenance Organizations (AMOs) shall establisha safety and quality policy for the organization, to be includedin the ►Maintenance Organization Exposition (MOE)3◄.


4815(1)

Organization Safety and Quality Policy (MRP 145.A.65(a))Common AMC

1. Nil.


2. Nil.


3. The safety and quality policy should, as a minimum, include a statementcommitting the organization to:

a. Recognize safety as a prime consideration at all times.

b. Apply Human Factors principles.

c. Encourage personnel to report maintenance related errors/incidents.

d. Recognize that compliance with procedures, quality standards, safetystandards and regulations is the duty of all personnel.

e. Recognize the need for all personnel to co-operate with the qualityauditors.

GuidanceMaterial

4815(1)

Organization Safety and Quality Policy (MRP 145.A.65(a))Common GM

4. ►All◄ Defence Aviation organizations ►are required4 to◄ establish ►an ASMS◄ in order to achieve the Secretary of State’s Safety Policy►5◄ and ►the ASMS requirements4◄ must be read in conjunction with this Regulation.

1 ►Refer to RA 4812 – Certification of Air System Release and Component Release (MRP 145.A.50).2 Refer to RA 4700 – Military Air Environment Quality Policy.3 Refer to RA 4816 – Maintenance Organization Exposition (MRP 145.A.70) - Approved Maintenance Organizations Only.4 Refer to RA 1200 – Defence Air Safety Management.◄

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GuidanceMaterial

4815(1)


5. ►Nil.◄


6. The safety and quality policy ►required by this Regulation◄ must be coherentwith the organization’s ASMS.

Regulation

4815(2)

Procedures for Good Maintenance Practices (MRP 145.A.65(b))

4815(2) The organization shall follow approved procedures, takinginto account Human Factors, to ensure good maintenancepractices and compliance with ►MRP Part 145◄.Procedures shall include a clear process, work order orcontract such that ►Air Systems◄ and components may bereleased for use►1◄. AMOs shall detail such procedures intheir ►MOE◄.

a. The maintenance procedures established or to beestablished by the organization under ►this Regulation◄ shall cover all aspects of carrying out themaintenance activity, including the provision and controlof specialized services and lay down the standards towhich the organization intends to work.

b. With regard to ►Air System◄ maintenance, theorganization shall establish procedures to minimize therisk of multiple errors and capture errors on criticalsystems. In particular, the organization shall haveprocedures to ensure that no one person is required toself-supervise a maintenance task that involves someelement of disassembly/reassembly and then repeatthat same maintenance task on identical or similarsystems on the same ►Air System◄. However, whenonly one person is available to carry out these tasks,then the organization’s work card or work sheet shallinclude an additional stage for re-inspection of the workby this person after completion of all the same tasks.

c. Maintenance procedures shall be established to ensurethat damage is assessed and modifications and repairsare carried out using approved Technical Information.


4815(2)

Procedures for Good Maintenance Practices (MRP 145.A.65(b))Common AMC

7. ►◄


8. ►MMOs should ensure that all established maintenance procedures andprocesses pertaining to good maintenance practices achieve compliance with MRPPart 145.◄

9. With respect to RA 4815(2)(b) (MRP 145.A.65(b)(b)), an independent inspectionshould be carried out ►on Air Systems or Air System components on occasions that include, but are not limited to, whenever maintenance work involves disconnection,replacement, connection, assembly or adjustment of the following systems:

5 ►Refer to DSA01.1 – Defence Policy for Health, Safety and Environmental Protection.◄

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4815(2)

a. Those stipulated by the Type Airworthiness Authority (TAA) in the Air SystemDocument Set (ADS).

b. Any element of an Air System control system.

c. Those additionally mandated by an Aviation Duty Holder (ADH) Chief AirEngineer (CAE) or a Military Continuing Airworthiness Management Organization(Mil CAMO).

10. An independent inspection should be sufficient to verify correct assembly andfunctionality covering the level of disturbance to the system.

11. An independent inspection should be conducted by an individual suitablycompetent and authorized6 who has had no involvement with the original maintenanceactivity.◄

12. ►For Air Systems◄ and ►Air System◄ structural components that arebeyond the Repair capability of the maintenance organization ►the Military Continuing Airworthiness Manager should be informed and should direct alternate means toeffect a Repair◄.


13. Maintenance Procedures should be reviewed and updated at an appropriateperiodicity to ensure that they reflect current best practice. It is the responsibility of allorganizations' employees to report any unauthorized deviation from approvedprocedures via their organization’s internal occurrence reporting mechanisms.

14. All procedures, and changes to those procedures, should be verified andvalidated before use where practical.

15. All maintenance procedures governing technical activity should be designedand presented in accordance with good Human Factors principles.

16. With respect to RA 4815(2)(b) (MRP 145.A.65(b)(b)), procedures should beestablished to detect and rectify maintenance errors that could, as minimum, result ina failure, malfunction, or fault endangering the safe operation of the ►Air System◄ ifnot performed properly. The procedure should identify the method for capturingerrors, and the maintenance tasks or processes concerned. This procedure shouldapply to any maintenance work that involves disconnection, replacement, connection,assembly or adjustment of any element of an ►Air System control system◄, or anyadditional task that may be generated from, for example:

a. Previous experiences of maintenance errors, depending on theconsequence of the failure.

b. Information arising from the ‘Occurrence reporting system’►7◄.

c. ►TAA and/or Mil CAMO◄ requirements to capture errors, if applicable.

17. In order to prevent omissions, every maintenance task or group of tasks shouldbe signed-off. To ensure the task or group of tasks is completed, it should only besigned-off after completion. Work by unauthorized personnel (eg temporary staff or atrainee), should be checked by authorized personnel before they sign-off. Thegrouping of tasks for the purpose of signing-off should allow critical steps to be clearlyidentified.

18. The maintenance organization should ensure that when carrying out amodification, repair or maintenance, the limits expressed within the approvedTechnical Information provided are not compromised; this will require the developmentof appropriate procedures, where necessary, by the ►◄ organization. Themaintenance organization should pay particular attention to possible adverse effectsof any wiring changes, even a change not specifically associated with the fuel tanksystem. For example, it ►is◄ common practice to identify segregation of fuelgauging system wiring, as defined within the approved Technical Information.

6 ►Refer to RA 4806 – Personnel Requirements (MRP 145.A.30) and RA 4807 – Certifying Staff and Support Staff (MRP 145.A.35).7 Refer to RA 4814 – Occurrence Reporting (MRP 145.A.60).◄

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4815(2)

Note:

The maintenance of ignition prevention features is necessary for the inherentsafety and reliability of an ►Air System’s◄ fuel tank system. The ►Air System◄ cannot be operated indefinitely with the failure of an ignitionprevention feature. The failure will have a direct adverse effect on operationalsafety. It could prevent the continued safe flight and landing of the ►Air System◄ or cause serious or fatal injury to the occupants. The fuel systemreview required will identify ignition prevention features of the design. Thefailure of any of these features may not immediately result in an unsafecondition, but it may warrant certain maintenance to support continuedAirworthiness.

GuidanceMaterial

4815(2)

Procedures for Good Maintenance Practices (MRP 145.A.65(b))►◄

19. For the purpose of RA 4815(2)(b) (MRP 145.A.65(b)(b)), ‘to self-supervise amaintenance task’ means to both carry out and inspect/supervise that maintenancetask.

►◄

20. ►◄

►◄

21. Specialized services include any specialized activity, such as, but not limited to,Non-Destructive Testing requiring particular skills and/or qualification. ►In addition to the qualification of personnel8◄, there is a need to establish maintenance proceduresthat cover the control of any specialized process.

22. ►The integrity of Air System control systems is vital to Air Safety. The Accountable Manager (Maintenance), the ADH CAE and the Mil CAMO may mandatethe requirement for an independent inspection on any system. Additionally, amechanic or supervisor may require an independent inspection of a system if heconsiders it justified by the nature or circumstances of the maintenance work beingundertaken.◄

23. For the purpose of this Regulation, ►‘Air System control system’◄ means anysystem, whether electrical, mechanical or optical, operated by user input orautomation, by which an ►Air System’s◄ speed, direction, flight attitude or propulsiveforce are changed in the air or on the ground or by which the undercarriage isretracted or lowered. The term includes power operated and assisted controls,including the immediate connections between those controls and their power systems,and may further extend to the systems that provide power to such controls. Automaticsystems that can be instantly overridden by the pilot are not considered to be ►Air System control systems◄ within the meaning of this Regulation, unless their failure,either in the air or on the ground, would place life or the ►Air System◄ at risk. Anyelements of a system, including attachment points to the ►Air System◄ structure,linking the appropriate pilot’s control to any of the following, must be considered as►Air System control systems◄. Although the list is not exhaustive, examples of ►Air System control systems◄ are:

a. Primary flying controls and reaction control systems.

b. Tabs, flaps, slats and airbrakes.

c. Wing sweep control actuators.

d. Primary power unit control mechanisms, including those for throttles,variable intakes, reverse thrust, high-pressure fuel cocks, propeller constantspeed units and rotating nozzles.

e. Helicopter rotor blade transmission and tail rotor transmission and pitch

8 ►Refer to RA 4806(6) – Specialized Services (MRP 145.A.30(f)).◄

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GuidanceMaterial

4815(2)

change mechanisms, ►including automatic blade fold systems◄.

►Note:

The functioning of a blade folding and/or spreading system may notnecessarily constitute ‘disturbance’ of that particular system or of theassociated flying control/transmission systems.◄

f. Undercarriage retraction and lowering and undercarriage steeringmechanisms.

g. ►Air System◄ wheel brakes.

h. Automatic flight control systems.

24. A list of those systems subject to independent inspections for a particularplatform type will be detailed in the relevant Technical Information.

25. One purpose of ►RA 4815(2)(b) (MRP 145.A.65(b)(b))◄ is to minimize thepossibility of an error being repeated whereby the identical ►Air System◄components are not reassembled correctly thereby compromising more than onesystem. An example is the remote possibility of failure to reinstall engine gearboxaccess covers or oil filler caps on all engines of a multi-engine ►Air System◄resulting in major oil loss from all engines.

26. A ‘sign-off’ is a statement or signature by the competent person performing orsupervising the work, that the task or group of tasks has been correctly performed. Asign-off relates to one step in the maintenance process and is therefore different fromthe Certification of ►Air System◄ Release. ‘Authorized personnel’ means personnelformally authorized by the maintenance organization approved under ►MRP Part 145◄ to sign-off tasks. Authorized personnel are not necessarily staff withcertification authorization►9◄.

Regulation

4815(3)

Quality System (MRP 145.A.65(c))

4815(3) The organization shall establish a quality system thatincludes the following:

a. Independent audits in order to monitor compliance withrequired ►Air System/Air System◄ componentstandards and adequacy of the procedures to ensurethat such procedures invoke good maintenancepractices and airworthy ►Air System/Air System◄components; and

b. A quality feedback reporting system to the person orgroup of persons specified►10◄ and ultimately to theAccountable Manager (Maintenance) that ensuresproper and timely corrective action is taken in responseto reports resulting from the independent auditsestablished to meet RA 4815(3)(a) (MRP145.A.65(c)(a)).


4815(3)

Quality System (MRP 145.A.65(c))Common AMC

27. Nil.


28. The ►Regulation2 for◄ quality auditing ►◄ should be followed.

9 ►Refer to RA 4807(7) – Issue of Certification Authorization (MRP 145.A.35(g)).10 Refer to RA 4806(2) – Personnel Responsible to the Accountable Manager (Maintenance) (MRP 145.A.30(b)).◄

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4815(3)

29. ►◄


30. Independent audits should include a percentage of random audits carried outon a sample basis when maintenance is being carried out. This means some auditsduring the night for those organizations that work at night.

31. The independent audit should ensure that all aspects of ►MRP Part 145◄compliance, including all sub-Regulations, AMC, GM and ►MOE◄ processes, inaddition to other RAs required by contract, are checked every 12 months and may becarried out as a complete single exercise or subdivided over the 12 month period inaccordance with a scheduled plan.

32. The independent audit does not require each procedure to be checked againsteach product line when it can be shown that the particular procedure is common tomore than one product line and the procedure has been checked every 12 monthswithout resultant findings. However, where findings have been identified, theparticular procedure should be rechecked against other product lines until the findingshave been rectified, after which the independent audit procedure may revert back to12 monthly for the particular procedure.

33. Except as specified otherwise in Paragraph ►32◄, the independent auditshould sample check one product on each product line every 12 months as ademonstration of the effectiveness of and compliance to maintenance procedures.

34. The independence of the audit should be established by always ensuring thataudits are carried out by personnel not responsible for the function, procedure orproducts being checked.

35. A small organization (one with a maximum of 10 personnel actively engaged inmaintenance) that chooses to contract the independent audit element of the qualitysystem in accordance with RA 4806(3)(a) (MRP 145.A.65(c)(a)) should only do sowith agreement from the MAA and under the condition that the audit is carried outtwice in every 12 month period.

36. Where the organization has line stations listed►11◄, the quality system shoulddescribe how these are integrated into the system and include a plan to audit eachlisted line station at a frequency consistent with the extent of flight activity at theparticular line station. The maximum period between audits of a particular line stationshould not exceed 12 months.

37. A report should be raised each time an audit is carried out, describing whatwas checked and the resulting findings against applicable requirements, proceduresand products.

38. The quality feedback system should not be contracted to outside persons.

39. On receiving the independent quality audit report, the relevant department(s)should rectify findings and inform the quality department or nominated quality auditorof such rectification.

40. The Accountable Manager (Maintenance) should hold regular meetings withstaff to check progress on rectification except that, for large organizations (with morethan about 500 maintenance staff), such meetings may be delegated on a day-to-daybasis to the quality manager, subject to the Accountable Manager (Maintenance)meeting at least twice per year with the senior staff involved to review the overallperformance and receiving at least a half yearly summary report on findings of non-compliance.

41. All records pertaining to the independent quality audit and the quality feedbacksystem should be retained for at least 2 years after the date of clearance of thefinding to which they refer.

11 ►Refer to RA 4817(1) – Privileges of the Organization (MRP 145.A.75).◄

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GuidanceMaterial

4815(3)

Quality System (MRP 145.A.65(c))Common GM

42. Nil.


43. ►This Regulation◄ requires an MMO to have its own quality system►2◄ thatincorporates a schedule of independent audits with a formal reporting mechanism tomanagement. The ‘Self Audit’ and reporting processes►2◄ satisfies this requirement,with independence being achieved by using staff independent of the process beingaudited. ►◄

44. ►◄


45. The primary objective of the quality system is to enable the organization toensure that it can deliver a safe product and that the organization remains incompliance with applicable Regulation and policy. Essential elements of the qualitysystem are the independent audit and the quality feedback system.

The independent audit ►- AMOs only◄

46. The independent audit is an objective process of routine sample checks of allaspects of the organization’s ability to carry out all maintenance to the requiredstandards and includes some product sampling as this is the end result of themaintenance process. It represents an objective overview of the completemaintenance related activities and is intended to complement the ►◄requirement►12◄ for certifying staff to be satisfied that all required maintenance hasbeen properly carried out before endorsement of the Certification of ►Air System◄Release.

47. Procedures and product audits may be combined by selecting a specific productexample, such as an ►Air System◄, engine or instrument, and sample checking allthe procedures and requirements associated with the specific product example toensure that the end result is an airworthy product.

48. For the purpose of the independent audit, a product line includes any productunder ►an◄ approval class rating►13◄, as specified in the approval schedule issuedto the particular organization. It therefore follows, for example, that a maintenanceorganization approved under ►MRP Part 145◄ with a capability to maintain ►Air Systems◄ and repair engines, brakes and autopilots would need to carry out 4complete audit sample checks each year, unless a different interval of audits has beenstipulated by the MAA.

49. The sample check of a product means to witness any relevant testing andvisually inspect the product and associated documentation. It is not intended for thesample check to involve repeat disassembly or testing, unless the sample checkidentifies findings requiring such action.

50. In order to ensure the independence of the auditor(s), it follows that:

a. A large maintenance organization approved under ►MRP Part 145◄,being an organization with more than about 500 maintenance staff, will mostlikely have a dedicated quality audit group, whose sole function is to conductaudits, raise finding reports and follow up to check that findings are beingrectified.

b. A medium-sized maintenance organization approved under ►MRP Part 145◄, being an organization with less than about 500 maintenance staff, mayuse competent personnel from one section/department not responsible for theproduction function, procedure or product to audit the section/department that isresponsible, subject to the overall planning and implementation being under thecontrol of the ►quality manager◄.

12 ►Refer to RA 4812(1) – Certification of Air System Release (MRP 145.A.50(a)).13 Refer to RA 4804 – Terms of Approval (MRP 145.A.20) – Approved Maintenance Organizations (AMOs) Only.◄

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GuidanceMaterial

4815(3)

c. Small organizations with a maximum of 10 maintenance staff activelyengaged in carrying out maintenance may contract the independent auditelement of the quality system to another organization approved under ►MRP Part 145◄, or a suitably qualified and competent person.

51. The table at Annex A provides guidance on just one acceptable working outlineaudit plan to meet part of the needs of ►this Regulation◄. There is any number ofother acceptable working audit plans.

The quality feedback system ►- AMOs only◄

52. The principal function of the quality feedback system is to ensure that allfindings resulting from the independent quality audits of the organization are properlyinvestigated and corrected in a timely manner and to enable the Accountable Manager(Maintenance) to be kept informed of any safety issues and the extent of compliancewith ►MRP Part 145◄.

53. A key part of this feedback system is sending the independent quality auditreports to the relevant department(s) for rectification action giving target rectificationdates. Rectification dates may be discussed with such department(s) before thequality department or nominated quality auditor confirms such dates in the report.

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ANNEX A

EXAMPLE OUTLINE AUDIT PLAN (AMOs only)

1. The example outline audit plan at Table A-1 lists the subject matter that will be covered by the audit;its applicability to the various types of workshops and ►Air System◄ facilities will have to be assessed.The list will therefore be tailored for the particular situation and more than one list may be necessary.

2. Each list will need to be shown against a timetable to indicate when the particular item is scheduledfor audit and when the audit was completed.

Table A-1. Example Outline Audit Plan.

ITEM Sub-Item HANGARENGINE

WORKSHOPMECH

WORKSHOPAVIONIC

WORKSHOPRA 4800 (MRP Part-145) RA 4800(1)RA 4801 (MRP 145.A.01) RA 4801(2)RA 4802 (MRP 145.A.10) RA 4802(1)RA 4803 (MRP 145.A.15) RA 4803(1)RA 4804 (MRP 145.A.20) RA 4804(1)

RA 4805 (MRP 145.A.25)

RA 4805(1)RA 4805(2)RA 4805(3)RA 4805(4)

RA 4806 (MRP 145.A.30)

RA 4806(1)RA 4806(2)RA 4806(3)RA 4806(4)RA 4806(5)RA 4806(6)RA 4806(7)RA 4806(8)RA 4806(9)

RA 4806(10)

RA 4807 (MRP 145.A.35)

RA 4807(1)RA 4807(2)RA 4807(3)RA 4807(4)RA 4807(5)RA 4807(6)RA 4807(7)RA 4807(8)RA 4807(9)

RA 4807(10)RA 4807(11)RA 4807(12)RA 4807(13)

RA 4808 (MRP 145.A.40)RA 4808(1)RA 4808(2)

►RA 4808(3)◄

RA 4809 (MRP 145.A.42)

RA 4809(1)RA 4809(2)RA 4809(3)RA 4809(4)

RA 4810 (MRP 145.A.45)

RA 4810(1)RA 4810(2)RA 4810(3)RA 4810(4)RA 4810(5)RA 4810(6)RA 4810(7)

RA 4811 (MRP 145.A.47)RA 4811(1)RA 4811(2)RA 4811(3)

RA 4812 (MRP 145.A.50)

RA 4812(1)RA 4812(2)RA 4812(3)RA 4812(4)RA 4812(5)

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WORKSHOPMECH

WORKSHOPAVIONIC

WORKSHOP

RA 4813 (MRP 145.A.55)RA 4813(1)RA 4813(2)RA 4813(3)

RA 4814 (MRP 145.A.60)RA 4814(1)RA 4814(2)RA 4814(3)

RA 4815 (MRP 145.A.65)RA 4815(1)RA 4815(2)RA 4815(3)

RA 4816 (MRP 145.A.70)

RA 4816(1)RA 4816(2)RA 4816(3)RA 4816(4)

RA 4817 (MRP 145.A.75) RA 4817(1)RA 4818 (MRP 145.A.80) RA 4818(1)RA 4819 (MRP 145.A.85) RA 4819(1)

RA 4820 (MRP 145.A.90)RA 4820(1)RA 4820(2)

RA 4821 (MRP 145.A.95) RA 4821(3)MOE Part 2.1MOE Part 2.2MOE Part 2.3MOE Part 2.4MOE Part 2.5MOE Part 2.6MOE Part 2.7MOE Part 2.8MOE Part 2.9

MOE Part 2.10MOE Part 2.11MOE Part 2.12MOE Part 2.13MOE Part 2.14MOE Part 2.15MOE Part 2.16MOE Part 2.17MOE Part 2.18MOE Part 2.19MOE Part 2.20MOE Part 2.21MOE Part 2.22MOE Part 2.23MOE Part 2.24MOE Part 2.25MOE Part 2.26MOE Part 2.27MOE Part 2.28MOE Part L2.1MOE Part L2.2MOE Part L2.3MOE Part L2.4MOE Part L2.5MOE Part L2.6MOE Part L2.7MOE Part 3.1MOE Part 3.2MOE Part 3.3MOE Part 3.4MOE Part 3.5MOE Part 3.6MOE Part 3.7MOE Part 3.8MOE Part 3.9

MOE Part 3.10MOE Part 3.11MOE Part 3.12

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WORKSHOPMECH

WORKSHOPAVIONIC

WORKSHOPMOE Part 3.13MOE Part 3.14

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RA 4947 - Continuing Airworthiness Management - MRP Part M SubPart G

Rationale ►For a Military Continuing Airworthiness Management Organization (Mil CAMO) to beapproved by the MAA it must have adequate procedures for ensuring the ContinuingAirworthiness Management of its Air Systems. If these procedures do not address allof the tasks required to maintain Airworthiness, an Air System could be released forflight in a non-airworthy condition. RA 4947 identifies the minimum activity that a MilCAMO must accomplish in order to ensure Airworthiness of its Air Systems.◄

Contents 4947(1): Military Continuing Airworthiness ManagementOrganization (Mil CAMO) Responsibilities

Regulation

4947(1)

Mil CAMO Responsibilities

4947(1) For all Air Systems within its control, the approved Mil CAMOshall:

a. Develop and control an Aircraft MaintenanceProgramme, support any applicable reliabilityprogramme and propose amendments and additionsto the maintenance schedule to the TypeAirworthiness Authority (TAA).

b. Manage the embodiment of Modifications andRepairs.

c. Ensure that all maintenance is carried out to therequired quality and in accordance with (iaw) theAircraft Maintenance Programme, and be releasediaw RA 48121.

d. Ensure that all applicable Special Instructions(Technical) (SI(T)) are applied.

e. Ensure that Military Maintenance Organizations►(MMOs)◄ or MRP Part 145 Approved MaintenanceOrganizations ►(AMOs)◄ correctly manage Faultsreported, or discovered during scheduledmaintenance.

f. Co-ordinate scheduled maintenance, the applicationof SI(T)s and the replacement of service life limitedparts.

g. Manage and archive all Continuing Airworthinessrecords and the operator's technical log.

h. Assure that the weight and moment statement reflectsthe current status of the Aircraft.

i. Initiate and coordinate any necessary actions andfollow-up activity highlighted by an Occurrence report.

1 RA 4812 – Certification of ►Air System Release◄ and Component Release (MRP 145.A.50).

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4947(1)


4947(1)a1. ► Refer to RA 4961 – Aircraft Maintenance Programme – MRP Part M SubPart C.◄

4947(1)b►◄

2. ► Refer to RA 4963 – Modifications and Repairs – MRP Part M Sub Part C.◄

3. ►◄

a. ►◄

b. ►◄

c. ►◄

►◄

4. ►◄

a. ►◄

b. ►◄

c. ►◄

4947(1)c5. ►For all maintenance activity the Mil CAMO should agree the work packagecontent with the Maintenance Organization (MO) conducting the work and assure itssatisfactory completion.◄

6. The Mil CAMO should:

a. Ensure the ►MO◄ has access to the applicable current approved data,including that relating to Modifications and Repairs.

b. ►◄

c. Be responsible for the management and oversight of any issues arisingfrom the maintenance including the delivery and acceptance processes.

7. The Mil CAMO should maintain an airworthy fleet, and therefore assure thestandard of output from any ►MO◄.

a. Where the Mil CAMO and ►MO◄ share the same Quality Assurance(QA) system, this could be achieved through the internal QA process. Forcontracted organizations, the Mil CAMO should ensure appropriate contractcover is in place in order to provide equivalent levels of assurance.

b. Where the Mil CAMO and ►MO◄ do not share the same QA system,such assurance should be achieved through either formal visits to theorganization or ►external 2nd/3rd◄party auditing.

4947(1)d8. ►Refer to RA 4962 – Special Instructions (Technical) – MRP Part M SubPart C.◄

9. ►◄

a. ►◄

b. ►◄

c. ►◄

d. ►◄

10. ►◄

11. ►◄

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4947(1)

4947(1)e12. The Mil CAMO should ensure the use of a ►MMO◄ or ►AMO◄ to conductcorrective maintenance, and assure that they utilise appropriately authorizedpersonnel for the task.

13. The Mil CAMO should review Limitations/Acceptable Deferred Faults in orderto:

a. Highlight and address adverse trends, notifying these to the TAA,►Aviation Duty Holder (ADH)◄ or ►Accountable Manager (Military Flying (AM(MF))◄ as appropriate.

b. Identify any cumulative risk.

c. Ensure that, for out-of-limits Faults and damage, advice has been soughtfrom the TAA on Airworthiness risk.

14. The Mil CAMO should ensure that a register is maintained of reportedinstances of Aircraft displaying Uncommanded Flying Control Movements, ControlRestrictions or other abnormal flying characteristics, with any detected trends beingthoroughly investigated.

4947(1)f15. The Mil CAMO should plan and control all maintenance activity, including theuse of latitudes, deferments or concessions as part of the fleet management task.

16. The Mil CAMO should inform the ►ADH◄ or AM(MF) if there are anysignificant aspects of maintenance that cannot be carried out and advise of theimplications.

4947(1)g17. ►Refer to RA 4964 – Continuing Airworthiness Management Records – MRPPart M Sub Part C.◄

a. ►◄

b. ►◄

(1) ►◄

(2) ►◄

(3) ►◄

(4) ►◄

(5) ►◄

(6) ►◄

18. ►◄

19. ►◄

20. ►◄

21. ►◄

22. ►◄

4947(1)h23. Nil.

4947(1)i24. The Mil CAMO should maintain oversight of Occurrence reports raised (thisincludes, but is not limited to: ►Defence Air Safety Occurrence Reports (DASORs)◄,MF760s, Serious Fault Reports) and subsequent action.

25. The Mil CAMO should report to the MAA, TAA and any other Mil operator anyidentified condition of an Aircraft, component or maintenance procedure that

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4947(1)

endangers Air Safety as identified by the Mil CAMO.

26. Where an ►Air System◄ Occurrence report2 has an Airworthiness aspect, theMil CAMO should ensure the investigation of the Occurrence and subsequentrecovery of the ►Air System◄ (including any associated components) is robust.

27. Where the Occurrence report has a Continuing Airworthiness implication for thefleet, the Mil CAMO should ensure that appropriate remedial action is taken tominimise re-occurrence. This could include:

a. Changes to the Aircraft Maintenance Programme.

b. Addressing Human Factors issues (which could include training, workingconditions etc).

GuidanceMaterial

4947(1)


4947(1)28. ►MRP Part M Sub Part C is designed to directly support the Airworthiness tasks required by this RA. Compliance with Sub Part C is necessary to achieve anapproval for MRP Part M Sub Part G. Consequently a separate Sub Part C approvalis not required.◄

29. ►◄

30. ►◄

31. ►◄

32. ►◄

33. ►◄

34. ►◄

35. ►◄

36. ►◄

37. ►◄

38. ►◄

4947(1)a►◄

39. ►Nil.◄

4947(1)b40. ►Nil.◄

41. ►◄

42. ►◄

43. ►◄

a. ►◄

b. ►◄

c. ►◄

d. ►◄

e. ►◄

►◄

44. ►◄

a. ►◄

b. ►◄

2 ►Refer to RA 1410 – Occurrence Reporting.◄

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GuidanceMaterial

4947(1)

c. ►◄

d. ►◄

e. ►◄

4947(1)c45. The Project Team (PT) will set up the support contract and framework where►Air System◄/component maintenance is contracted out to an AMO on behalf of theMil CAMO.

46. Where appropriate the Mil CAMO will:

a. Conduct input and output meetings for each ►Air System◄ to establishthe required maintenance (including any applicable Modifications, Repairs,SI(T)s and upgrades) and ensure its satisfactory completion.

b. Manage the completion or deferment of emerging work, seeking andobtaining ►Technical Information.◄

47. ►MOs◄ must notify the Mil CAMO at the earliest opportunity that ►they have◄ deviated from Technical Information. When a notification has been received,the Mil CAMO must, having acknowledged receipt, consider the implications andprovide comment on the ►deviation◄ with a view to ►◄ advising appropriateremedial action.

4947(1)d48. ►Nil.◄

49. ►◄

4947(1)e50. Nil.

4947(1)f51. The PT may have an influence on the maintenance plan eg:

a. Providing the link between contracted ►MO◄ and Mil CAMO.

b. Identifying any shortfalls in funding or contracted maintenance-man-hours to enable the Mil CAMO / ►ADH◄ / (AM(MF)) to prioritise and/or seekappropriate resources/funding.

52. Where a service life limited part’s life cannot be ascertained, the Mil CAMOmust ensure that it is not used until such life can be determined, recovered or the partdisposed of.

4947(1)g53. Assurance of correct recording of ►Air System◄ and component ContinuingAirworthiness information can be provided by ►the◄ Mil ►Airworthiness Review(AR)◄ surveyor, who would undertake a documented review of ►Air System◄records as part of the Mil AR process.

4947(1)h54. The weight and moment statements will be checked as part of the Mil ARprocess to provide assurance that:

a. Aircraft configuration reflects that recorded in the MF700/technicallog/►Airworthiness Information System3◄.

b. Changes to weight and moment since last weigh have been accuratelycalculated and recorded.

55. Although managed by the Mil CAMO, the Mil CAMO itself is not responsible forcarrying out the weighing activity.

3 ►Refer to RA 1223 – Airworthiness Information System.◄

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GuidanceMaterial

4947(1)

4947(1)i56. The Mil CAMO must ensure/direct appropriate follow-up activity, keeping the►ADH◄ or AM(MF) apprised of any significant Airworthiness issues. This wouldinclude ensuring the satisfactory completion of the maintenance aspects of the ►Air System’s◄ DASOR.

57. Where the Occurrence report has a Type Airworthiness implication the MilCAMO must assure itself that appropriate remedial action is being taken by theTAA/Original Equipment Manufacturers. This could be assured by:

a. Raising a MF760 ►or equivalent◄.

b. Identifying the requirement for a Follow Up Report to the Occurrencereport to be carried out by the TAA.

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RA 4953 - Record Keeping - MRP Part M Sub Part G

Rationale ►Withdrawn - Incorporated into RA 4964◄

Contents 4953(1): ►Withdrawn - Incorporated into RA 4964◄

4953(2): ►Withdrawn - Incorporated into RA 4964◄

Regulation

4953(1)

4953(2)


4953(1) ►Withdrawn - Incorporated into RA 4964◄

Retention of Records

4953(2) ►Withdrawn - Incorporated into RA 4964◄


4953(1)

4953(2)

Mil CAMO Responsibilities and Retention of Records1. ►Withdrawn - Incorporated into RA 4964◄

GuidanceMaterial

4953(1)

4953(2)

Mil CAMO Responsibilities and Retention of Records2. ►Withdrawn - Incorporated into RA 4964◄

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RA 4961 - Aircraft Maintenance Programme - MRP Part M Sub Part C

Rationale The Type Airworthiness Authority (TAA) publishes the Air System Maintenance requirements in the Air System Technical Information (TI). If these requirements are not carried out, the Airworthiness of the Air System may be compromised. RA 4961 requires the Military Continuing Airworthiness Management Organization (Mil CAMO) to use an Aircraft Maintenance Programme (AMP) to ensure all necessary Air System corrective and preventative Maintenance is carried out before flight. This requires consideration of several factors, including the environment the Air System is operated in. Where this is not possible, the Maintenance is to be formally deferred by a competent and authorized individual who has assessed the Air System as airworthy.

Contents 4961(1): Aircraft Maintenance Programme (AMP)

4961(2): Reliability Programme

Regulation

4961(1)

Aircraft Maintenance Programme (AMP)

4961(1) The Military Continuing Airworthiness Manager (Mil CAM) shall ensure all Air Systems identified in their Continuing Airworthiness Management Exposition (CAME) are maintained to the requirements of the applicable TI.


4961(1)


1. The Mil CAMO should ensure that each Air System’s Maintenance is planned using an AMP. The AMP should detail all the Maintenance requirements for that Air System, including as a minimum:

a. TAA approved maintenance schedules.

b. Other TAA produced TI (including Special Instructions (Technical)).

c. Locally produced TI (including Aviation Local Technical Instructions1).

d. Environmental factors.

e. Embodiment of Modifications.

f. Corrective Maintenance requirements that have been identified but not yet carried out.

2. The Mil CAMO should have a process2 for managing the AMP. The process should ensure the AMP is compliant with the applicable TI and in concurrence with the protocols required by the TAA3.

3. Where the operating environment may affect the Continuing Airworthiness of the Air System and no mitigating action is included in the TI, the Mil CAMO should consult with the TAA to determine appropriate mitigating activity for subsequent inclusion in the AMP.

4. The Mil CAMO should agree the AMP work package content with the relevant Maintenance organization and ensure its satisfactory completion before flight.

5. The Mil CAMO should ensure that prior to an Air System being released for flight, all corrective and preventative Maintenance due before the end of the planned period of operation has been completed and documented in the Air System technical log4.

1 Refer to RA 4462 – Aviation Local Technical Instructions. 2 Refer to RA 4943 – Continuing Airworthiness Management Exposition (CAME) – MRP Part M Sub Part G. 3 Refer to RA 5320 – Aircraft Maintenance Programme – Design Guidelines. 4 Refer to RA 4964 – Continuing Airworthiness Records – MRP Part M Sub Part C.

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4961(1)

6. Where preventative Maintenance latitudes are permitted by the applicable TI, the Mil CAMO should detail the process2 for assessing the Airworthiness impact and recording5 the applied latitude. The recording of the deferment should clearly identify:

a. Why the deferment applies.

b. Why the deferment does not compromise Airworthiness6.

c. When the Maintenance must be conducted.

d. The competent7 and authorized individual who approved the decision.

7. The AMP should be reviewed by the Mil CAMO at least annually, to ensure it remains valid.

Guidance Material

4961(1)


Producing the AMP

8. The AMP is a planning system that may be managed through a series of tools incorporating different levels of detail (eg combining a high level fleet plan, a more detailed long forecast and a highly detailed short forecast). The AMP as a whole needs to be of sufficient detail to ensure an Air System does not fly without completing or formally deferring each serial of Maintenance that is due.

9. Flight Servicing is considered to be preventative Maintenance, which is to be managed according to the principles laid out in this Regulation and hence described in the AMP.

10. In addition to the minimum requirements at Paragraph 1, the AMP may include elements such as Ageing Aircraft Audits, specific integrity inspection programmes, sampling requirements and any other actions the Mil CAMO or TAA require to ensure the Airworthiness of the Air System.

Deferral and Anticipation of Scheduled Maintenance

11. If anticipating Maintenance, the Mil CAMO will consider any Airworthiness risk that may be inadvertently introduced.

12. Individuals deferring preventative Maintenance are subject to the appropriate competence requirements7.

Air System Release

13. Following the Certification of Air System Release8, a check that there is no more Maintenance outstanding before the end of the next flight needs to be carried out and recorded by a suitably competent person.

14. For Maintenance organizations using MOD Form 700 Series paperwork to record Air System Maintenance, the requirement for recording the check outlined in Paragraph 13 is met through co-ordination of the documentation using the MOD Form 705.

Review

15. The AMP is a live document and must be updated constantly. The annual requirement is a calendar backstop to ensure all changes have been incorporated.

Regulation

4961(2)

Reliability Programme

4961(2) The Mil CAM shall ensure all Air Systems identified in their CAME are subject to a reliability programme.

5 In the Aircraft technical log. 6 Refer to RA 4947 – Continuing Airworthiness Management – MRP Part M Sub Part C. In particular, note the requirement in AMC to RA 4947(1)f to inform the ADH or AM(MF) of significant aspects of Maintenance that cannot be carried out. 7 Refer to RA 4945 – Personnel Requirements – MRP Part M Sub Part G. 8 Refer to RA 4812 – Certification of Air System Release and Component Release (MRP 145.A.50).

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4961(2)


16. If the reliability programme identifies Airworthiness risks due to applying the preventative Maintenance periodicity in the TI, the Aviation Duty Holder / Accountable Manager (Military Flying) and the TAA should be informed.

Guidance Material

4961(2)


17. The reliability programme’s principal use is to validate the preventative Maintenance periodicity in the TI. Where the TI is not optimal, the Mil CAMO can propose amendments and additions for the existing Maintenance programmes to the TAA.

18. The Mil CAMO will obtain assurance of the effectiveness of the AMP through the Military Airworthiness Review process, other Mil CAMO tasks, the condition and standard of individual Air Systems, receipt checks from Depth and the condition of the fleet as a whole.

19. The Mil CAMO undertakes trending and analysis of Maintenance data as part of a reliability programme. This will enable it to act upon Faults and arising rates, deferred Fault trends etc in order to highlight and address any concerns proactively.

20. The data gathered may show that efficiency savings can be made by increasing the periodicity of preventative Maintenance. This information and data can be shared with the TAA who may use it as evidence to adjust the TI. The AMP must not be updated to incorporate these changes without the approval of the TAA.

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RA 4962 - Special Instructions (Technical) - MRP Part M Sub Part C

Rationale Special Instructions (Technical) (SI(T)) are instructions, issued by, or on behalf of, theType Airworthiness Authority (TAA) or commodity Project Team (PT), to undertake awork package to identify, monitor, repair or prevent the Occurrence or reoccurrence ofa potential Fault1. Failure to complete an SI(T) on all applicable Air Systems couldrender this action ineffective, therefore compromising Airworthiness. Some SI(T) haverecurrent actions that make management of them more complex. Effectiveimplementation and management of SI(T) controlled by the Military ContinuingAirworthiness Management Organization (Mil CAMO) will ensure that the Air Systemremains airworthy.

Contents 4962(1): Special Instructions (Technical)

Regulation

4962(1)

Special Instructions (Technical)

4962(1) The Military Continuing Airworthiness Manager (Mil CAM)shall ensure all SI(T) applicable to Air Systems identified intheir Continuing Airworthiness Management Exposition(CAME) are correctly embodied as required by the TAA orcommodity PT.


4962(1)

Special Instructions (Technical)1. The Mil CAMO should ensure the satisfaction of SI(T) in the mandatedtimescales. If the Mil CAMO cannot meet the mandated timescale, deferment shouldbe obtained from the TAA or commodity PT issuing the SI(T).

2. The Mil CAMO should manage the compliance of such instructions by:

a. Arranging for the distribution and ensuring the receipt of the SI(T)2.

b. Incorporation of the SI(T) into applicable Aircraft MaintenanceProgrammes.

c. Tasking appropriate maintenance organizations.

d. Recording applicability and completion of embodiment for each individualAir System.

3. The Mil CAMO should consider any follow-up action that may be required postSI(T) implementation.

4. The Mil CAMO should support the development of SI(T) by advising of anyimpact on availability, capability and sustainability.

5. The Mil CAMO should maintain records of extant SI(T) and advise the TAA orcommodity PT and Aviation Duty Holder (ADH) or Accountable Manager (MilitaryFlying) (AM(MF)) of completion of the requirement. Where the SI(T) cannot besatisfied within required timescales and no deferment has been issued by the TAA orcommodity PT, the Mil CAMO should inform the TAA or commodity PT and theADH/AM(MF).

6. The Mil CAMO should adopt a process, published in the CAME, to ensurerecurrent SI(T) are carried out at the prescribed intervals and prevent Air Systemsflying if they have not had an applicable SI(T) satisfied.

7. The Mil CAMO should ensure that SI(T) actions no longer required by the TAAor commodity PT are correctly removed from the Aircraft Maintenance Programme.

8. The Mil CAMO should ensure the satisfaction of locally approved procedures3

using the same principles as for an SI(T).

1 Refer to RA 5405 – Special Instructions (Technical).2 To key stakeholders, possibly including the Delivery Duty Holder and relevant Chief Air Engineer.

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GuidanceMaterial

4962(1)

Special Instructions (Technical)9. Mil CAMOs do not need to manage the satisfaction of Airworthiness Directives(AD) from Civil Aviation Authorities or Service Bulletins (SB) from Civil Type CertificateHolders unless issued through the TAA4 as an SI(T). Mil CAMOs receiving AD or SBdirectly need to ensure the TAA is aware of the document.

10. Mil CAMs of military registered Air Systems subject to Civil Aviation Authorityoversight need to be aware that a European Aviation Safety Agency (EASA) approvedCAMO supporting the platform will be required to embody AD and may choose toembody SB to remain within the EASA controlled environment. Close liaison betweenthe Mil CAMO, EASA approved CAMO and TAA for these Air Systems is vital when anew AD or SB is issued.

11. For civil derived Air Systems, the TAA will assess whether AD or SB need to beembodied and issued as an SI(T) if necessary, however, close liaison between the MilCAMO and TAA is necessary to ensure all Continuing Airworthiness risks outlined inAD and SB are captured and mitigated effectively.

12. SI(T) can have a recurrent element. It is important to note that althoughrecurrent satisfaction of an SI(T) has much in common with the management ofscheduled maintenance, deferral of SI(T) recurrence may only be carried out wherespecifically allowed in the SI(T) or agreed by the TAA or commodity PT.

3 Eg Aviation Local Technical Instructions.4 Refer to RA 1124 – Civil Aviation Authority Oversight of Military Registered Aircraft.

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RA 4963 - Modifications and Repairs - MRP Part M Sub Part C

Rationale Air System Modification and Repair instructions will be developed in accordance withRA 5000 Series (Type Airworthiness Engineering) Regulations. If Modifications andRepairs are not conducted according to these instructions the Airworthiness of the AirSystem will be compromised. Additionally, the operational situation may requiredeferral of a Modification or Repair which could compromise Airworthiness if notcorrectly managed. Oversight by the Military Continuing Airworthiness ManagementOrganization (Mil CAMO) is critical to ensure Air Systems remain airworthy afterundergoing Modifications or Repairs or when deferral of these processes is required.

Contents 4963(1): Modifications and Repairs

Regulation

4963(1)

Modifications and Repairs

4963(1) The Military Continuing Airworthiness Manager (Mil CAM)shall ensure all Modifications and Repairs1 on Air Systemsidentified in their Continuing Airworthiness ManagementExposition (CAME) are correctly embodied in compliancewith the instructions issued by the Type AirworthinessAuthority (TAA).


4963(1)

Modifications1. The Mil CAMO should assess the impact of all planned Modifications, considerthe implications for the Aviation Duty Holder (ADH)/Accountable Manager (MilitaryFlying) (AM(MF)) and develop an implementation strategy in consultation with the TAAand the Maintenance Organization (MO) embodying the Modification.

2. The Mil CAMO should schedule Modifications and then manage Modificationembodiment:

a. For Modifications with an Airworthiness impact, the Mil CAMO shouldensure that the embodiment is completed within the TAA-mandated timescalesfor the platform.

b. The Mil CAMO should monitor progress throughout the embodimentprocess.

c. The Mil CAMO should ensure configuration control of the Modificationand that the overall Modification state and Airworthiness condition of the AirSystem is documented.

Repairs3. The Mil CAMO should:

a. Ensure all known and suspected Faults are assessed to see if theyrequire a Repair.

b. Report Serious Faults to the TAA2.

c. Schedule the Repair and then manage its embodiment in conjunctionwith the organization conducting the Repair.

d. Request an appropriate Repair scheme or concession for damageoutside Approved Data from the TAA or appropriately Approved DesignOrganization.

e. Monitor the use of Repair schemes and concessions and report issues tothe ADH, or AM(MF), or inform the TAA of any additional requirements.

4. The Mil CAMO should ensure all Repair deferrals and limitations are assessed

1 Refer to MAA 02: MAA Master Glossary.2 In addition to the general reporting requirements in RA 1410 – Occurrence Reporting.

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4963(1)

by a competent individual, are correctly recorded and that the ADH/AM(MF) isinformed of any arising issues. The process for managing this should be detailed inthe CAME.

5. The Mil CAMO should not allow deferral of Faults that exceed limits laid downin the Technical Information (TI), or where there are no limits and the competentindividual assesses that the Air System is not airworthy, unless the relevant ADHaccepts the risk.

6. Where maintenance organizations require a deviation from TI for any reason,this requirement should be managed in the same way as a deferral.

7. The Mil CAMO should inform the TAA of any Type requirements resulting fromthe management of deferrals and limitations.

GuidanceMaterial

4963(1)

Modifications and Repairs8. The Mil CAMO’s role is to embody the Modification in support of the TAA’sRegulatory requirements3.

9. The Mil CAMO is not responsible for identifying the requirement for capabilityModifications.

10. There are a number of reasons for modifying an Air System, includingAirworthiness, reliability, efficiency, survivability and capability. In managing theembodiment of Modifications the Mil CAMO will:

a. Advise the ADH or AM(MF) on the impact of non-AirworthinessModifications and the scheduling of embodiment where applicable.

b. Maintain oversight of the assembly, storage and issue of Modificationkits.

11. The Mil CAMO will need to consider issues associated with embodiment ofModifications and Repairs, taking into account ADH or AM(MF) fleetcapability/availability requirements to meet operational and training commitments.

12. The Mil CAMO must maintain oversight of individual airframe Airworthiness aswell as trends across the fleet. Therefore the Mil CAMO must coordinate thescheduling of Repairs and manage their approvals where suitable data is notavailable. This will be achieved by:

a. All requests for approved data/Repair schemes being made to the TAAthrough the Mil CAMO.

b. Performing the function of fleet manager/controller.

c. Consulting with the maintenance organizations conducting Repairs todetermine priorities.

d. Deciding where Repairs are carried out and managing the tasking andtransfer process where appropriate.

e. Authorizing Cannibalization.

3 See RA 5301-5320 – Control of Design and Design Records and RA 5603 – Design Change Approval and Validation ofModifications, for further details.

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Documents

Redacted - GOV.UK · Airworthiness tasks; a separate Sub Part C approval is not required. References in Continuing Airworthiness Management Expositions may need updating, but are