DOC AIRBUS | AMM A320FGeneral Visual Inspection of the Thrust Reverser Fire Seals and Vapor Barrier Seals [PW11]
TASK 78-32-00-210-807-A
General Visual Inspection of the Thrust Reverser Fire Seals and Vapor Barrier Seals
Refer to the MPD TASK: 783200-W3
GENERAL VISUAL INSPECTION OF THRUST REVERSER FIRE SEALS AND VAPOR BARRIER SEALS.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 78-32-00-941-085-A ** ON A/C NOT FOR ALL
Subtask 78-32-00-410-097-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:32:10 UTC
General Visual Inspection of the Thrust Reverser Fire Seals and Vapor Barrier Seals
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AND THE ADJACENT COMPONENTS AFTER ENGINE SHUTDOWN. THE ENGINE, THE ENGINE OIL AND THE ADJACENT COMPONENTS CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
WARNING:
WEAR APPLICABLE PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN YOU DO THIS TASK. BEFORE YOU USE PPE, READ, UNDERSTAND AND OBEY ALL INSTRUCTIONS FOR ITS USE. THESE INSTRUCTIONS INCLUDE INSTRUCTIONS FROM THE MANUFACTURER, YOUR EMPLOYER AND GOVERNMENT REGULATIONS. YOU CAN GET INJURED IF YOU DO NOT USE PPE. GET INSTRUCTIONS FROM YOUR EMPLOYER ON WHICH PPE IS NECESSARY.
1. Reason for the JobRefer to the MPD TASK: 783200-W3
GENERAL VISUAL INSPECTION OF THRUST REVERSER FIRE SEALS AND VAPOR BARRIER SEALS.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| TASK 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-802-A | Closing of the Fan Cowl Doors |
| TASK 78-30-00-040-805-A | Deactivation of the Thrust Reverser System for Ground Maintenance |
| TASK 78-30-00-440-805-A | Reactivation of the Thrust Reverser System after Ground Maintenance |
| TASK 78-32-42-000-802-A | Removal of the Left Thrust-Reverser Seals |
| TASK 78-32-42-400-802-A | Installation of the Left Thrust-Reverser Seals |
| TASK 78-32-72-000-802-A | Removal of the Right Thrust Reverser Seals |
| TASK 78-32-72-400-802-A | Installation of the Right Thrust-Reverser Seals |
| TASK 78-36-00-010-802-A | Opening of the Thrust Reverser Cowl-Doors |
| TASK 78-36-00-410-802-A | Closing of the Thrust Reverser Cowl-Doors |
Left Thrust Reverser Fire Seals and Vapor Barrier SealsSubtask 78-32-00-941-085-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833)
Subtask 78-32-00-010-102-A ** ON A/C NOT FOR ALL (1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833)
B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
Subtask 78-32-00-040-076-A ** ON A/C NOT FOR ALL (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
C. Deactivation of the Thrust Reverser for Maintenance
Subtask 78-32-00-010-103-A ** ON A/C NOT FOR ALL WARNING:
YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
(1) Do the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805). D. Get Access
(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
4. Procedure(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 78-32-00-210-076-A ** ON A/C NOT FOR ALL A. General Visual Inspection of the Thrust Reverser Fire Seals and Vapor Barrier Seals
(1) Do not discard a part until you are sure there are no repairs available. If you reject a part and no repair is available, contact United Technologies Aerospace Systems (UTAS) for disposition.
(2) Visually examine the fire seals of the thrust reverser.
(a) Examine the fire seals of the left and right thrust reverser.
1 Look for missing segments, cracks, gouges and holes.
2 If you find damage, replace the fire seals (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802) or contact UTAS for disposition.
(b) Examine the screws, pins, washers and nuts that attach the fire seals to the inner fixed structure of the left and right thrust reverser.
1 Look for corrosion, wear, cracks, gouges and missing hardware.
2 If you find damage, replace the hardware (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802).
(c) Examine the surfaces adjacent to the fire seals.
1 Look for holes and gaps between the fire seals and the adjacent surfaces.
2 If you find holes or gaps, fill them with sealant (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802).
(d) Examine the surfaces adjacent to the fire seals.
1 Look for holes and gaps in the sealant between the fire seals and the adjacent surfaces.
2 If you find holes or gaps, replace the sealant as necessary (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802).
(e) Examine the ACOC seal.
1 Make sure there are chamfers on the aft side of the seal.
2 If the chamfers are not on the aft side, remove the ACOC seal and install it with the chamfers on the aft side (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802).
(3) Visually examine the vapor barrier seals of the thrust reverser.
(a) Examine the vapor barrier seals of the left and right thrust reverser.
1 Look for missing segments, cracks, gouges and holes.
2 If you find damage, replace the vapor barrier seals (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802) or contact UTAS for disposition.
(b) Examine the nuts that attach the vapor barrier seals to the inner fixed structure of the left and right thrust reverser.
1 Look for corrosion, wear, cracks, gouges and missing hardware.
2 If you find damage, replace the hardware (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802).
5. Close-up(1) Do not discard a part until you are sure there are no repairs available. If you reject a part and no repair is available, contact United Technologies Aerospace Systems (UTAS) for disposition.
(2) Visually examine the fire seals of the thrust reverser.
(a) Examine the fire seals of the left and right thrust reverser.
1 Look for missing segments, cracks, gouges and holes.
2 If you find damage, replace the fire seals (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802) or contact UTAS for disposition.
(b) Examine the screws, pins, washers and nuts that attach the fire seals to the inner fixed structure of the left and right thrust reverser.
1 Look for corrosion, wear, cracks, gouges and missing hardware.
2 If you find damage, replace the hardware (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802).
(c) Examine the surfaces adjacent to the fire seals.
1 Look for holes and gaps between the fire seals and the adjacent surfaces.
2 If you find holes or gaps, fill them with sealant (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802).
(d) Examine the surfaces adjacent to the fire seals.
1 Look for holes and gaps in the sealant between the fire seals and the adjacent surfaces.
2 If you find holes or gaps, replace the sealant as necessary (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802).
(e) Examine the ACOC seal.
1 Make sure there are chamfers on the aft side of the seal.
2 If the chamfers are not on the aft side, remove the ACOC seal and install it with the chamfers on the aft side (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802).
(3) Visually examine the vapor barrier seals of the thrust reverser.
(a) Examine the vapor barrier seals of the left and right thrust reverser.
1 Look for missing segments, cracks, gouges and holes.
2 If you find damage, replace the vapor barrier seals (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802) or contact UTAS for disposition.
(b) Examine the nuts that attach the vapor barrier seals to the inner fixed structure of the left and right thrust reverser.
1 Look for corrosion, wear, cracks, gouges and missing hardware.
2 If you find damage, replace the hardware (Ref. AMM TASK 78-32-42-000-802) and (Ref. AMM TASK 78-32-42-400-802), (Ref. AMM TASK 78-32-72-000-802) and (Ref. AMM TASK 78-32-72-400-802).
Subtask 78-32-00-410-097-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
Subtask 78-32-00-440-071-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-32-00-410-098-A ** ON A/C NOT FOR ALL