Airworthiness: Preventive Maintenance

Presented to:

By:

Date:

Federal AviationAdministration Airworthiness

Preventive MaintenanceR1

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OBJECTIVE • Define preventive maintenance.

• Persons authorized to perform preventive maintenance.

• Maintenance record entries.

• Performance rules (general).

• List of Preventive Maintenance work.

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Preventive Maintenance - Defined FAR 1

• Simple or Minor preservation operations and the replacement of small standard parts not involving complex assembly operations.

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Persons Authorized to Perform Preventive Maintenance – FAR 43.3• Holder of a mechanic certificate issued under

Part 65• Holder of a repairman certificate• Holder of Part 145, 121 and 135 certificate• Holder of a Pilot Certificate issued under Part

61• A person working under the supervision of a

mechanic or repairman

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Let’s Take a Closer Look at what type of Pilot is authorized to Perform… PREVENTIVE MAINTENCE

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Types of Pilot Licenses

• Student Pilot

• Recreational Pilot

• Sport Pilot

• Private Pilot

• Commercial Pilot

• ATP

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A Person holding a Pilot Certificate can perform Preventive MaintenanceAlthough 43.3 does not specify the type of pilot certificate that is required to perform preventive maintenance, 43. 7 does specify at least a private pilot certificate to make the logbook entry. The person making the logbook

entry must be the same person who performed the maintenance

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Question

• Can a holder of at a Private Pilot certificate supervise and sign off preventive maintenance work performed on his/her aircraft if the work is done by another person?

A) Yes

B) No

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Preventive Maintenance FAR 43.3

• The Sport Pilot – Limited to the sport pilot plane that they own or operate.

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Preventive Maintenance Items

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FAR 43 Appendix A Preventive Maintenance

• (1) Removal, installation, and repair of landing gear tires.

• (2) Replacing elastic shock absorber cords on landing gear.

• (3) Servicing landing gear shock struts by adding oil, air, or both.

• (4) Servicing landing gear wheel bearings, such as cleaning and greasing.

• (5) Replacing defective safety wiring or cotter keys• (6) – (31)

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Types of Aircraft Authorized

• Operated under Part 91.

• Not operated under FAR 121, 125 or 135

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Maintenance Record Entries(43.9)

• 1) A description of work performed.• 2) The date of completion of the work

performed.• 3) The name of the person performing the

work if other than the person approving return to service.

• 4) Upon satisfactory performance of the work, the signature, certificate number, and kind of certificate held by the person approving the work.

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Performance Rules (general)(43.13)

• 43.13 a) “use the methods, techniques, and practices prescribed in the current manufacturer’s maintenance manual or Instructions for Continued Airworthiness prepared by its manufacturer or other methods, techniques, and practices acceptable to the Administrator.”

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PPPP

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Performance Rules (general)(43.13 a) Cont’d

• “use the tools, equipment, and test equipment so the work is done in accordance with accepted industry practices. Must use special tools or test equipment recommended by the manufacturer involved, or its equivalent acceptable to the Administrator.”

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Performance Rules (general)43.13 (cont’d)

• 43.13 b) ……”shall do that work and use materials that the condition will be at least equal to its original or properly altered condition (with regard to aerodynamic function, structural strength, resistance to vibration and deterioration, and other qualities affecting airworthiness).”

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Tool CalibrationBe absolutely sure your measuring

tools are accurate.

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Performance Rules (general)43.13 (cont’d)

• 43.13 b) ……”shall do that work and use materials that the condition will be at least equal to its original or properly altered condition (with regard to aerodynamic function, structural strength, resistance to vibration and deterioration, and other qualities affecting airworthiness).”

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Question

A pilot may perform Preventive Maintenance on any Part 91 aircraft?

A.True

B.False

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Question

Which of the following is/are authorized to “approve for return to service” after preventive maintenance?

a. A Sport Pilot

b. Certificated Mechanic

c. A Private Pilot

d. All the above

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Question:

What regulation lists Preventive Maintenance actions?

a.FAR 43.3

b.FAR 43.7

c.FAR 43.9

d.FAR 43 Appendix A

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Question

What conditions must be met before a mechanic or repairman can supervise preventive maintenance?

a. Authorized to perform the work

b. Observes the work is done properly

c. Is readily available for consultation

d. All of the above

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(4) Servicing landing gear wheel bearings, such as cleaning and greasing.

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(6) Lubrication not requiring disassembly other than removal of nonstructural items such as cover plates, cowlings, and fairings.

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(7) Making simple fabric patches not requiring rib stitching or the removal of structural parts or control surfaces.

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(9) Refinishing decorative coating of fuselage, balloon baskets, wings tail group surfaces (excluding balanced control surfaces), fairings, cowlings, landing gear, cabin, or cockpit interior when removal or disassembly of any primary structure or operating system is not required.

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(11) Repairing upholstery and decorative furnishings of the cabin, cockpit, or balloon basket interior when the repairing does not require disassembly of any primary structure or operating system or interfere with an operating system or affect the primary structure of the aircraft.

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(12) Making small simple repairs to fairings, nonstructural cover plates, cowlings, and small patches and reinforcements not changing the contour so as to interfere with proper air flow.

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(13) Replacing side windows where that work does not interfere with the structure or any operating system such as controls, electrical equipment, etc.

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(14) Replacing safety belts.

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(15) Replacing seats or seat parts with replacement parts approved for the aircraft, not involving disassembly of any primary structure or operating system.

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(16) Trouble shooting and repairing broken circuits in landing light wiring circuits.

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(20) Replacing or cleaning spark plugs and setting of spark plug gap clearance.

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(26) Replacement or adjustment of nonstructural standard fasteners incidental to operations.

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Additional Guidance

• AC 20-106, Aircraft Inspection for the General Aviation Aircraft Owner

• AC 23-2A Flammability Tests• AC 43.12A Preventive Maintenance

– (Find these and more AC’s on FAA.gov)

• FAA Publication P-8740-15Maintenance Aspects of Owning Your Own Aircraft ( find it on FAASafety.gov)

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Conclusion

• Questions and comments

• Faasafety.gov

• G A Awards Program

• WINGS Program

• AMT Award Program• Feedback wanted:

http://www.faa.gov/about/office_org/headquarters_offices/avs/stakeholder_feedback/afs/field/sf_faasteam

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Sometimes thinking you are safe, doesn’t always mean that you are!