DOC AIRBUS | AMM A320FDetailed Visual Inspection of the Exhaust Fire Seal [PW11]
TASK 78-11-01-200-801-A
Detailed Visual Inspection of the Exhaust Fire Seal
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 78-11-01-941-054-A ** ON A/C NOT FOR ALL
Subtask 78-11-01-410-054-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:30:25 UTC
Detailed Visual Inspection of the Exhaust Fire Seal
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.
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.
ZONE: 400
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | 1 | LIGHT SOURCE - INSPECTION |
| No specific | 1 | MAGNIFYING GLASS POWER 10X |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.PU1-0001) | lint-free cotton cloth |
| (Material No.PU2-0001) | alcohol, isopropyl |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 451AL, 452AR, 473AL, 473AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 461AL, 462AR, 483AL, 483AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 54-57-22-000-810-A | Removal of the Rear Mount Fairing (RMF) Door |
| TASK 54-57-22-400-810-A | Installation of the Rear Mount Fairing (RMF) Door |
| 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 78-11-01-000-802-A | Removal of the Exhaust Fire Seal |
| TASK 78-11-01-400-802-A | Installation of the Exhaust Fire Seal |
| 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 78-36-00-010-802-A | Opening of the Thrust Reverser Cowl-Doors |
| TASK 78-36-00-410-802-A | Closing of the Thrust Reverser Cowl-Doors |
Exhaust Fire Seal - Detailed Visual InspectionSubtask 78-11-01-941-054-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 78-11-01-010-062-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
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 78-11-01-040-055-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
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
C. Deactivation of the Thrust Reverser for Maintenance
Subtask 78-11-01-010-063-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.
Subtask 78-11-01-010-064-A ** ON A/C NOT FOR ALL (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.
E. On the pylon, open the following access panels (Ref. AMM TASK 54-57-22-000-810):
(1) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
(2) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
Subtask 78-11-01-110-051-A ** ON A/C NOT FOR ALL (1) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
(2) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
F. Cleaning of the Exhaust Fire Seal
PU2-0001 alcohol, isopropyl PU2-0001 alcohol, isopropyl
4. ProcedureWARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Clean the exhaust fire seal, attachment hardware and adjacent structure with a clean lint-free cotton cloth (Material No.PU1-0001) with the CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 78-11-01-210-050-A ** ON A/C NOT FOR ALL A. Visually examine the exhaust fire seal
(1) Do not discard a part until you are sure that there are no repairs available. If you reject a part and no repair is available, contact United Technologies Aerospace Systems (UTAS) for disposition.
(2) Use the LIGHT SOURCE - INSPECTION and the MAGNIFYING GLASS POWER 10X and examine the exhaust fire seal on the exhaust nozzle. Look for missing segments, cracks, gouges and holes.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
(3) Use the LIGHT SOURCE - INSPECTION and the MAGNIFYING GLASS POWER 10X and examine the bolts and washers that attach the exhaust fire seal to the exhaust nozzle. Look for corrosion, wear, cracks, gouges, and missing hardware.
(a) If you find damage, replace the hardware (Ref. AMM TASK 78-11-01-000-802) and (Ref. AMM TASK 78-11-01-400-802).
(4) Make sure that the bolts and washers are correctly attached. Tighten or replace the part as necessary (Ref. AMM TASK 78-11-01-000-802) and (Ref. AMM TASK 78-11-01-400-802).
(5) Use the LIGHT SOURCE - INSPECTION and the MAGNIFYING GLASS POWER 10X and examine the structure adjacent to the exhaust fire seal. Look for dents, cracks, gouges, corrosion, or wear.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
5. Close-up(1) Do not discard a part until you are sure that there are no repairs available. If you reject a part and no repair is available, contact United Technologies Aerospace Systems (UTAS) for disposition.
(2) Use the LIGHT SOURCE - INSPECTION and the MAGNIFYING GLASS POWER 10X and examine the exhaust fire seal on the exhaust nozzle. Look for missing segments, cracks, gouges and holes.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
(3) Use the LIGHT SOURCE - INSPECTION and the MAGNIFYING GLASS POWER 10X and examine the bolts and washers that attach the exhaust fire seal to the exhaust nozzle. Look for corrosion, wear, cracks, gouges, and missing hardware.
(a) If you find damage, replace the hardware (Ref. AMM TASK 78-11-01-000-802) and (Ref. AMM TASK 78-11-01-400-802).
(4) Make sure that the bolts and washers are correctly attached. Tighten or replace the part as necessary (Ref. AMM TASK 78-11-01-000-802) and (Ref. AMM TASK 78-11-01-400-802).
(5) Use the LIGHT SOURCE - INSPECTION and the MAGNIFYING GLASS POWER 10X and examine the structure adjacent to the exhaust fire seal. Look for dents, cracks, gouges, corrosion, or wear.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
Subtask 78-11-01-410-054-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) On the pylon, close the following access panels (Ref. AMM TASK 54-57-22-400-810):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
(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 78-11-01-440-052-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) On the pylon, close the following access panels (Ref. AMM TASK 54-57-22-400-810):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
(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 78-11-01-410-055-A ** ON A/C NOT FOR ALL