DOC AIRBUS | AMM A320FRepair of the Thrust Reverser Latch-Paint [PW11]
TASK 78-32-00-300-803-A
Repair of the Thrust Reverser Latch-Paint
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 78-32-00-941-133-A ** ON A/C NOT FOR ALL
Subtask 78-32-00-410-207-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:32:33 UTC
Repair of the Thrust Reverser Latch-Paint
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.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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 | BRUSH - NON METALLIC |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.PU1-0001) | lint-free cotton cloth |
| (Material No.PU1-0013) | abrasive paper, 320-grit |
| (Material No.PU10-0058) | paint |
| (Material No.PU2-0001) | alcohol, isopropyl |
| (Material No.PU4-0014) | curing solution |
| (Material No.PU4-0016) | topcoat, clear polyurethane |
| (Material No.PU4-0042) | polyurethane coating |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| 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 78-32-35-000-801-A | Removal of the Thrust Reverser Latches |
| TASK 78-32-35-400-801-A | Installation of the Thrust Reverser Latches |
| 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 |
Thrust Reverser LatchesSubtask 78-32-00-941-133-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 78-32-00-010-218-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) If necessary, put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 78-32-00-040-139-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) If necessary, put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
C. Deactivation of the Thrust Reverser for Ground Maintenance
Subtask 78-32-00-010-219-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 ground 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.
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.
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 78-32-00-350-051-A ** ON A/C NOT FOR ALL A. Repair of the damaged paint on the thrust reverser latch
(1) If necessary, remove the applicable thrust reverser latch from the fan cowl (Ref. AMM TASK 78-32-35-000-801).
(2) Remove the loose paint from the damaged area withPU1-0013 abrasive paper, 320-grit
PU2-0001 alcohol, isopropyl
(4) Clean the damaged area again with a clean lint-free cotton cloth (Material No.PU1-0001) andPU2-0001 alcohol, isopropyl
(5) Clean the damaged area one more time with a clean lint-free cotton cloth (Material No.PU1-0001) .
(6) Mix the following in an applicable mixing cup:
(8) Make sure that you mix the paint at five-minute intervals while you apply the paint.
(9) Apply the paint (Material No.PU10-0058) to the damaged area with the BRUSH - NON METALLIC. Make sure that you apply paint on all of the surfaces of the damaged areas.
(10) Let the paint dry for 24 to 48 hours at room temperature for maximum cure.
(11) If you removed the thrust reverser latch, install the thrust reverser latch (Ref. AMM TASK 78-32-35-400-801).
5. Close-up(1) If necessary, remove the applicable thrust reverser latch from the fan cowl (Ref. AMM TASK 78-32-35-000-801).
(2) Remove the loose paint from the damaged area with
NOTE: You can use 320 to 400-grit abrasive paper.
(3) Clean the unwanted debris with the lint-free cotton cloth (Material No.PU1-0001) and (4) Clean the damaged area again with a clean lint-free cotton cloth (Material No.PU1-0001) and
(5) Clean the damaged area one more time with a clean lint-free cotton cloth (Material No.PU1-0001) .
(6) Mix the following in an applicable mixing cup:
- 2 oz (59.14 ml) of
PU4-0016 topcoat, clear polyurethane - 1 oz (29.57 ml) of curing solution (Material No.PU4-0014)
- 1 oz (29.57 ml) of polyurethane coating (Material No.PU4-0042) (component A, pigmented resin, color 38903, fluorescent orange)
- 1 oz (29.57 ml) of polyurethane coating (Material No.PU4-0042) (component B, aliphatic isocyanate resin, color 38903, fluorescent orange).
(8) Make sure that you mix the paint at five-minute intervals while you apply the paint.
(9) Apply the paint (Material No.PU10-0058) to the damaged area with the BRUSH - NON METALLIC. Make sure that you apply paint on all of the surfaces of the damaged areas.
(10) Let the paint dry for 24 to 48 hours at room temperature for maximum cure.
(11) If you removed the thrust reverser latch, install the thrust reverser latch (Ref. AMM TASK 78-32-35-400-801).
Subtask 78-32-00-410-207-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) Close the thrust-reverser cowl-door (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 78-32-00-440-131-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust-reverser cowl-door (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 ground maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-32-00-410-208-A ** ON A/C NOT FOR ALL