A330PDF Export

8/18/2019 A330PDF Export

1/9

HEATED FLOOR PANELS

Reference: 25.27.00002 First Issue Date: 03-APR-2007 Last Publication Date:

09-JUL-2014

ATA: 25-27 A/C Type : A330 ; A340

Supplier : PANASONIC AVIONICS CORPORATION

Linked Documentation: MOD 57244 ; MOD 57245 ; MOD 57246

Engineering Support

First Issue Date: 03-APR-2007 Last Publication Date: 09-JUL-2014

SUBJECT: Heated Floor Panels

APPLICABILITY: ALL

REFERENCES: AMM 25-27-00 and 25-27-51

IPC 25-27 and 53, (Jan 08)

TFU 21.00.00.032: DAMAGED DOOR HEATED FLOOR

PANELS MOD 57244, 57245, 57246

REVISION REASON:

This revision No. 1 is issued to:

- Include MOD references and implementation rank, for production aircraft- Add reason for non mixability between HFP PN 4E33xx and 4E46xx series

- Update the PN cross reference table

1. PURPOSE:

The purpose of this article is to provide operators with the necessary information to enable replacement of the heatedfloor panels (HFP), Part Number (PN) 4E33xx, 4E40xx and 4E47xx series with new Titanium HFP PN 4E46xx series.

2. BACKGROUND:

2.1 Heated Floor Panels PN 4E33xx series

https://w3.airbus.com/awn-server/consult-client?param=H4sIAAAAAAAA_32SX2vCMBTFv0rJ0wZLo-4vxda5rdtLVbAKvo2YXmtmm5SkafXbL610biiDEC4nv5N7cslwtM8zpwKluRQ-6rs95IBgMuEi9dFy8Y6f0CgY0lp4BVU0h9Kiv3jkWL_QngV8ZJTwKFdrozFNJGvE7rw8FKDPiVbumL3mPtqWZeERUte1W9-6UqVk0Ov1yWoSxWwLOcVc6JIKBtaluadbMZKMlm2gCxFW8RsxGpR12vAbygAzKTY8Nao1kdPD3L1OHBQM21heYdY4Ac0UL0qpOnUHB0dY3kcKKpzQ0iapaGas8BmN4wVyyDlq21ecncgxV9PnyglFygWAssO-aGNG_1g-wulFJpcJZKeLo6ilyH9PyLjYdfXGCNZMAX8dqWA-Dd1ZASIGqtj25fCquB0Np1doMntDN82O7x8Hdw-2tmsxX4ZNdd21PLuwOzh2JX-_UvANIb6WvoECAAA=https://w3.airbus.com/awn-server/consult-client?param=H4sIAAAAAAAA_32SUWvCMBSF_0rJ0wZLo26yUWydm91eOgWr4NuI6bVmtklJ0lb__dJK54YyCOFy8p3ck0tG40OeORUozaXwUd_tIQcEkwkXqY9Wyzf8hMbBiNbCK6iiORiL_uKRY_1CexbwUamER7nalBrTRLJG7M7NsQB9SbRyxxw099HOmMIjpK5rt753pUrJoNfrk_VHFLMd5BRzoQ0VDKxLc0-3YiQZNW2gKxHW8ZSUGpR12vBbygAzKbY8LVVrIueHuQedOCgYtbG8otzgBDRTvDBSdeoejo6wvI8UVDihxiapaFZa4TOaxEvkkEvUtq84O5MTrmbPlROKlAsAZYd91cZK_WN5D2dXmVwmkJ0vjqKWIv89IeNi39XbUrBmCvjrRAWLWejOCxAxUMV2L8dXxe1oOL1BH_Mpumt2PHwcPAxtbddysQqb6rZreXFhd3DqSv5-peAbWNutC4ECAAA=https://w3.airbus.com/awn-server/consult-client?param=H4sIAAAAAAAA_32SUWvCMBSF_0rJ0wZLo86xUWydm91eOgWr4NuI6bVmtklJ0lb__dJK54YyCOFy8p3ck0tG40OeORUozaXwUd_tIQcEkwkXqY9Wyzf8hMbBiNbCK6iiORiL_uKRY_1CexbwUamER7nalBrTRLJG7M7NsQB9SbRyxxw099HOmMIjpK5rt753pUrJoNfrk_VHFLMd5BRzoQ0VDKxLc0-3YiQZNW2gKxHW8ZSUGpR12vBbygAzKbY8LVVrIueHuQedOCgYtbG8otzgBDRTvDBSdeoejo6wvI8UVDihxiapaFZa4TOaxEvkkEvUtq84O5MTrmbPlROKlAsAZYd91cZK_WN5D2dXmVwmkJ0vjqKWIv89IeNi39XbUrBmCvjrRAWLWejOCxAxUMV2L8dXxe1oOL1BH_Mpumt2_PA4GA5tbddysQqb6rZreXFhd3DqSv5-peAbsAWU0YECAAA=


2/9

The combination of sixteen (16) Heated Floor Panels PN 4E33xx series and the new defined floor panel PN F5367xxxxxxwere introduced in the door 1, 2, 3 and 4 (LH and RH) areas on A330/A340 family aircraft, as a product improvement furtherto airlines’ indications of too low temperatures on such areas.

Picture 1.: PN 4E33xx Aluminum HFP installation

Airbus has been receiving reports of Aluminum HFP (Part Number PN 4E33xx series) delamination and corrosion.

Several other reports have shown cases of damaged panel with presence of burnt holes on the inner aluminum plate.

As a consequence the affected Heated Floor Panels lose their heating function, thus affecting the temperature levelat the doors and galleys areas. Flight diversions have been reported due to overheating of HFP located at door 2LH or due to a burning plastic smell with an unusual high temperature of the cabin floor in the door 4 LH area.

Corrosion and delamination were found at the aluminum sheets of the HFP, mainly located at the edges and theouter fastener bore holes. The flanges of the HFP are delaminated in between the Aluminum sheet, with

possibility of moisture ingress in that area. Findings are due to:

• Damage of the surface protection mainly at the edges and in bore holes

• Moisture ingress between the HFP and the honeycomb floor panel

• Galvanic corrosion between heated aluminum plate and adjacent carbon fiber panels

Corroded and delaminated panels are not repairable.

Further to the above-mentioned issues, Airbus initiated the development of new integrated composite heated floor panels with an aluminum top layer, with PN 4E40xx and 4E47xx series.

2.2 Heated Floor Panels PN 4E40xx and PN 4E47xx series


3/9

Picture 3.: PN 4E40xx and PN 4E47xx Aluminum HFP build-up

Note: Aluminium HFP PN 4E47xx series have the same design as the 4E40xx series except that they are FAR 25.856 (a)

compliant. To fulfil the FAR 25.856 (a) requirements, the Epoxy adhesive from vendor Stycast is replacing the foamadhesive (Spray, vendor: 3M) and an additional stainless steel foil is installed between the lower surface of the panel andthe insulation foam.

Despite improvements, Airbus has been receiving few reports of Composite HFP corrosion, on PN 4E40xx series, but to alesser extent than on Aluminium HFP PN 4E33xx series.

The system, with HFP PN 4E40xx and PN 4E47xx series, is connected to the Ice Protecting Control Unit (IPCU), whichallows identification of a faulty panel via a class III Centralized Fault Display System (CFDS) message (for

instance: "252751-HEATR 3xx/IPCU FWD14DS" or "252751-HEATR 4xx/IPCU AFT16DS").

Corrosion was found at the aluminum sheets of the HFP, mainly at the edges and the outer fastener bore holes. Findingsare due to:

• Damage of the surface protection mainly at the edges and in bore holes

• Galvanic corrosion between heated aluminum and carbon fiber plates, bridges are createdthrough attachment points.


4/9

Picture 4.: Corrosion at the edges and the outer fastener bore holes

Corroded panels are not repairable.

2.3 Temporary solution for HFP, pending the availability of PN 4E46xx series

When a HFP is reported inoperative or regulating too hot, it is recommended to perform the “Operational Check of theDoor Area Heating System by using the Test Button on each Control Unit” as per Aircraft Maintenance Manual (AMM)

25-27-00-710-801 (for HFP PN 4E33xx) and “Bite Test of the Door Area Heating System” as per AMM 25-27-00-740-801 (for HFP PN 4E33xx, 4E40xx and 4E47xx).

When a failure in form of overheat or corrosion (visually detected) of the panels is identified, three possibilitiesare proposed up to availability of the Titanium HFP PN 4E46xx series:

a) When the structural integrity of the affected panel is still intact, deactivate the heated floor panel system forthis door prior the aircraft departure by pulling and securing all circuit breakers associated to the system as

per AMM 25-27-00-040-801 “Deactivation of the Heating Floor Panels” and Aircraft Schematic Manual(ASM) 25-27-00 Schema 01.

b) For HFP PN 4E33xx series: When panels are in a shape that they will no longer support mechanicalloads, deactivate the system via the respective circuit breakers and replace the corroded heated floor panels

by locally manufactured dummy panels from the same size made from al2024 or al6061 with a thickness of3mm or 0.125inch.

c) Replace the heated floor panel (HFP) with the same PN of HFP.

For HFP PN 4E33xx, when the HFP system is deactivated, the Maintenance Planning Document (MPD) task 252700-01-1“DOOR AREA HEATING SYSTEM” (interval '2C') shall no longer be applied.

3. DESCRIPTION OF TITANIUM HEATED FLOOR PANELS PN 4E46xx SERIES

New developed heated floor panels consist of a composite base plate on which a heater foil and titanium cover sheetare laminated (Titanium HFP top plate instead of Aluminum as on PN 4E40xx and PN 4E47xx series).Additionally, the edges of the panels are specially protected.

These laminated panels eliminate the corrosion issue, as primarily reported on HFP PN 4E33xx series.


5/9

Picture 5.: PN 4E46xx Titanium HFP build-up

In production, these new Titanium HFP PN 4E46xx series are introduced through:

- MOD57244 for A330/A340 with a first implementation on

o MSN925 (for A330-200)

o MSN928 (for A330-300)

o MSN938 (for A340-300)

- MOD57245 for A340-500, with a first implementation on MSN924- MOD57246 for A340-600, with a first implementation on MSN1027

4. REPLACEMENT PROCEDURE:

As listed in the IPC, the new Titanium heated floor panels, PN 4E46xx, are replacing the following HFPs:

• PN 4E33xx series that shall be removed in conjunction with the adjacent HFP and their associatedfloor panels, which are PN F5367xxxx (listed in IPC 53-XX),

• PN 4E40xx,

• PN 4E47xx.

- The Titanium HFP PN 4E46xx installed in production, through MOD55903, shall be replaced by the same new PN4E46xx.

- In-service, HFP PN 4E33xx series are “one-way interchangeable” with the new HFP PN 4E46xx series with the

following conditions:

• PN 4E33xx may be replaced:

o With PN 4E33xx

o With PN 4E46xx only if the conditions listed in section 4.1 are fulfilled

• Once PN 4E46xx, has been installed as a spare part, it may be replaced:o With PN 4E46xx

o With PN 4E33xx if the adjacent HFP PN 4E46xx is also replaced by PN 4E33xx

(please refer to section 4.1 for more details) and the associated floor panels are re-

installed.

- In-service, HFP PN 4E40xx and 4E47xx series are “one-way interchangeable” with the new HFP PN 4E46xx:• PN 4E40xx/4E47xx may be replaced by PN 4E46xx or PN 4E40xx/4E47xx


6/9

• Once PN 4E46xx has been installed as a spare part, it may be replaced by PN 4E46xx or PN4E40xx/4E47xx.

Airbus recommends to follow the same conditions as listed for the replacement of HFP PN 4E33xx series, please refer tosection 4.1 for more details.

Note: As already listed in the IPC, HFP PN 4E40xx is one-way interchangeable with (Replacedby) with HFP PN 4E47xx.

4.1 Door areas

The heated floor panels shall be replaced by pairs for each door area, in order to avoid:- Galvanic couple that may lead to an accelerated corrosion of the remaining aluminum or composite

HFP.- Overlap or gap, due to different dimensions in Y direction.

• FIN 20DS and FIN 22DS shall be replaced at the same time






• FIN 38DS, FIN 40DS and FIN 112DS shall be replaced at the same time

• FIN 39DS, FIN 41DS and FIN 111DS shall be replaced at the same time


• FIN 117DS, FIN 118DS, FIN 119DS and FIN 121DS shall be replaced at the same time

Note: The above replacement rules are applicable to HFP PN 4E33xx series and are recommendations for HFP PN4E40xx and 4E47xx series, due to galvanic couple that may lead to an accelerated corrosion of the remaining compositeHFP.

The HFP PN 4E33xx series shall be removed in conjunction with their associated floor panels, which are PN F5367xxxx

(listed in IPC 53-XX):

• FIN 20DS and FIN 222GF shall be removed at the same time

• FIN 21DS and FIN 221GF shall be removed at the same time

• FIN 22DS and FIN 222KF shall be removed at the same time


• FIN 26DS and FIN 242KF shall be removed at the same time• FIN 27DS and FIN 241KF shall be removed at the same time

• FIN 28DS and FIN 242JF shall be removed at the same time


• FIN 32DS and FIN 262EF shall be removed at the same time

• FIN 33DS and FIN 261EF shall be removed at the same time

• FIN 34DS and FIN 262DF shall be removed at the same time

• FIN 35DS and FIN 261DF shall be removed at the same time






7/9

Picture 6.: Door areas HFP location and FIN

4.2 Galley areas

The galley areas are only equipped with HFP PN 4E40xx or 4E47xx series.

Picture 7.: Galley areas HFP location and FIN

4.3 Part Numbers Cross

Reference


8/9

For the replacement of the aluminum (4E33xx series) or composite heated floor panels (4E40xx and4E47xx series), the IPC is the reference document for the Part Numbers (PN). However, in order to provide a

complete picture, the here-attached PN cross-reference table can be referred to. Please note that this table will not berevised with the IPC revision.

Pre-Mod Pre-Enhanced a/c (Aluminum) Pre-Mod Enhanced a/c (Composite) Post-mod (T

PANEL LOCATION - FIN Floor Panel HFP HFP Alu surface

Current HFP / Alu

surface / FAR

compliant

Composite

Titanium Su

D1, LH, (A) - 21DS F536 71144 000 4E3356-1 4E4032-1 4E4732-1 4E4632

D1, LH, (A) - 21DS 4E4032-3 4E4732-3 4E4632

4E3357-1D1, LH, (B) - 23DS F536 71145 000

4E3357-2 4E4033-1 4E4733-1 4E4633

D1, LH, (B) - 23DS 4E4033-3 4E4733-3 4E4633

D1, RH, (A) - 20DS F536 71144 001 4E3358-1 4E4032-2 4E4732-2 4E4632

D1, RH, (A) - 20DS 4E4032-4 4E4732-4 4E4632

4E3359-1D1, RH, (B) - 22DS F536 71146 000

4E3359-2 4E4035-2 4E4735-2 4E4635

D1, RH, (B) - 22DS 4E4035-4 4E4735-4 4E4635

D2, LH, (A) - 27DS 4E4036-1 4E4736-1 4E4636

D2, LH, (A) - 27DS F536 72869 000 4E3360-1 4E4036-3 4E4736-3 4E4636

D2, LH, (B) - 29DS F536 72868 006 4E3361-4 4E4037-1 4E4737-1 4E4637

D2, LH, (B) - 29DS 4E4037-3 4E4737-3 4E4637

D2, LH, (B) - 29DS 4E4037-5 4E4737-5 4E4637

D2, LH, (B) - 29DS 4E4037-7 4E4737-7 4E4637

4E3361-1D2, LH, (B) - 29DS F536 72868 000

4E3361-5 4E4037-9 4E4737-9 4E4637

F536 72868 002 4E4037-11 4E4737-11 4E4637-D2, LH, (B) - 29DS

F536 72868 008 4E3361-2

4E4037-21 4E4737-21 4E4637-

4E3361-3D2, LH, (B) - 29DS F536 72868 004

4E3361-6 4E4037-13 4E4737-13 4E4637-

4E4637-

D2, RH, (B) - 28DS 4E4737-17 4E4637-

D2, LH, (B) - 29DS 4E4737-23 4E4637-

D2, RH, (A) - 26DS 4E4036-2 4E4736-2 4E4636

D2, RH, (A) - 26DS F536 72869 001 4E3362-1 4E4036-4 4E4736-4 4E4636

D2, RH, (B) - 28DS F536 72868 007 4E3363-4 4E4037-2 4E4737-2 4E4637

D2, RH, (B) - 28DS 4E4037-4 4E4737-4 4E4637

D2, RH, (B) - 28DS 4E4037-6 4E4737-6 4E4637

D2, RH, (B) - 28DS 4E4037-8 4E4737-8 4E4637

F536 72868 001 4E3363-1D2, RH, (B) - 28DS

F536 72868 001 4E3363-5 4E4037-10 4E4737-10 4E4637-

F536 72868 003 4E4037-12 4E4737-12 4E4637-D2, RH, (B) - 28DS

F536 72868 009 4E3363-2

4E4037-22 4E4737-22 4E4637-

F536 72868 005 4E3363-3D2, RH, (B) - 28DS

F536 72868 005 4E3363-6 4E4037-14 4E4737-14 4E4637-

4E4637-

D2, RH, (B) - 28DS 4E4737-18 4E4637-

D2, RH, (B) - 28DS 4E4737-24 4E4637-

D3, LH, (A) - 33DS 4E4038-1 4E4738-1 4E4638

D3, LH (A) - 33DS / RH (B) - 34DS 4E4038-3 4E4738-3 4E4638

D3, LH (A) - 33DS / RH (B) - 34DS F536 71485 001 4E3367-2 4E4038-5 4E4738-5 4E4638

D3, LH (A) - 33DS / RH (B) - 34DS F536 71493 001 4E3367-3 4E4038-7 4E4738-7 4E4638

D3, LH, (A) - 33DS F536 71495 002 4E3364-1 4E4038-9 4E4738-9 4E4638

D3, LH, (A) - 33DS 4E4738-11 4E4638-

D3, LH, (B) - 35DS 4E4039-1 4E4739-1 4E4639

D3, LH, (B) - 35DS F536 71491 000 4E4039-3 4E4739-3 4E4639

D3, LH, (B) - 35DS F536 71491 002 4E3365-1

4E4039-5 4E4739-5 4E4639

D3, LH, (B) - 35DS 4E4039-7 4E4739-7 4E4639

D3, LH, (B) - 35DS 4E4739-9 4E4639

D3, RH, (A) - 32DS 4E4038-2 4E4738-2 4E4638

D3 RH (A) - 32DS / LH (B) - 35DS 4E4038-4 4E4738-4 4E4638

D3 RH (A) - 32DS / LH (B) - 35DS F536 71485 000 4E3365-2 4E4038-6 4E4738-6 4E4638

D3 RH (A) - 32DS / LH (B) - 35DS F536 71493 000 4E3365-3 4E4038-8 4E4738-8 4E4638

D3, RH, (A) - 32DS F536 71495 003 4E3366-1 4E4038-10 4E4738-10 4E4638-

D3, RH, (A) - 32DS 4E4738-12 4E4638-

D3, RH, (B) - 34DS 4E4039-2 4E4739-2 4E4639

D3, RH, (B) - 34DS F536 71491 001 4E4039-4 4E4739-4 4E4639

D3, RH, (B) - 34DS F536 71491 003 4E3367-1

4E4039-6 4E4739-6 4E4639

D3, RH, (B) - 34DS 4E4039-8 4E4739-8 4E4639

D3, RH, (B) - 34DS 4E4739-10 4E4639-

Pre-Mod Pre-Enhanced a/c (Aluminum) Pre-Mod Enhanced a/c (Composite) Post-mod (T

PANEL LOCATION - FIN Floor Panel HFP HFP Alu surface

Current HFP / Alu

surface / FAR

compliant

Composite

Titanium Su

F536 72337 000 4E4640D4, LH, (A) - 39DS F536 72337 002 4E3368-1 4E4040-1 4E4740-1 4E4640


9/9

F536 72337 004 4E4040-3 4E4740-3 4E4640

D4, LH, (A) - 39DS 4E4040-5 4E4740-5 4E4640

D4, LH, (B) - 41DS F536 72338 000 4E3369-1 4E4041-1 4E4741-1 4E4641

D4, LH, (B) - 41DS 4E4041-3 4E4741-3 4E4641

F536 72337 003 4E4040-2 4E4740-2 4E4640

F536 72337 005 4E4040-4 4E4740-4 4E4640D4, RH, (A) - 38DS

F536 72337 001

4E3370-1

4E4640

D4, RH (A) - 38DS 4E4040-6 4E4740-6 4E4640

D4, RH, (B) - 40DS F536 72338 001 4E3371-1 4E4041-2 4E4741-2 4E4641

D4, RH, (B) - 40DS 4E4041-4 4E4741-4 4E4641

EMERGENCY DOOR, LH(A) - 45DS

/ RH(B) - 46DS 4E4042-1 4E4742-1 4E4642

EMERGENCY DOOR, RH(A) - 44DS

/ LH(B) - 47DS 4E4042-2 4E4742-2 4E4642

D4, LH, (C) - 111DS 4E4043-1 4E4743-1 4E4643

D4, LH, (C) - 111DS 4E4043-3 4E4743-3 4E4643

D4, RH, (C) - 112DS 4E4043-2 4E4743-2 4E4643

D4, RH, (C) - 112DS 4E4043-4 4E4743-4 4E4643

GALLEY AREA, FWD - 113DS 4E4044-1 4E4744-1 4E4644

GALLEY AREA, REAR - 114DS 4E4044-2 4E4744-2 4E4644

GALLEY AREA, REAR - 114DS 4E4044-4 4E4744-4 4E4644

LD GALLEY, FWD LH - 117DS 4E4091-1 4E4791-1 4E4691

LD GALLEY, FWD RH - 118DS 4E4091-4 4E4791-4 4E4691

LD GALLEY, AFT (A) - 119DS 4E4092-1 4E4792-1 4E4692

LD GALLEY, AFT (B) - 121DS 4E4093-1 4E4793-1 4E4693

Table 1: PN cross reference

Note:

- A: stands for the Outer panel (FIN 119DS: A stands for FWD panel)- B: stands for the Inner panel (FIN 121DS: B stands for AFT panel)- C: stands for the HFP between door 4 area and the galley area (i.e. FIN 111DS and 112DS).

5. PROCUREMENT

Purchases orders or availability information request related to the heated floor panels, are to besubmitted to:

Kara HARLAND ( mailto:[email protected]

) Phone: (+001) 330-374-4055Fax: (+001) 330-

374-2137

Goodrich De-Icing and Specialty

Systems1555 Corporate WoodsParkway

Uniontown,Ohio 44685

United States of

America

© Airbus SAS, 2014. All rights reserved. Confidential and proprietary document.The technicalinformation provided in this article is for convenience and information purposes only. It shall in no

case replace the official Airbus technical or Flight Operations data which shall remain the sole basisfor aircraft maintenance and operation. These recommendations and information do not constitute acontractual commitment, warranty or guarantee whatsoever. They shall not supersede the Airbustechnical nor operational documentation; should any deviation appear between this article and theAirbus or airline's official manuals, the operator must ensure to cover it with the appropriatedocument such as TA, FCD, RAS. Access to WISE is supplied by Airbus under the express condition

that Airbus hereby disclaims any and all liability for the use made by the user of the informationcontained in WISE. It shall be used for the user's own purposes only and shall not be reproduced ordisclosed to any third party without the prior consent of Airbus.
mailto:[email protected]

Documents

A330PDF Export