DOC AIRBUS | AMM A320FGeneral Visual Inspection (GVI) of the Thrust Reverser Blocker Doors [PW11]
TASK 78-32-00-210-808-A
General Visual Inspection (GVI) of the Thrust Reverser Blocker Doors
Self explanatory
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 78-32-00-941-087-A ** ON A/C NOT FOR ALL
Subtask 78-32-00-210-078-A ** ON A/C NOT FOR ALL
Subtask 78-32-00-410-103-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:32:11 UTC
General Visual Inspection (GVI) of the Thrust Reverser Blocker Doors
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.
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 |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR | |
| 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 78-32-00-860-802-A | Manual Extension of the Thrust-Reverser Translating Sleeves |
| TASK 78-32-33-000-801-A | Removal of the Thrust Reverser Blocker Doors |
| TASK 78-32-33-400-801-A | Installation of the Thrust Reverser Blocker Doors |
Thrust Reverser Blocker DoorsSubtask 78-32-00-941-087-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 78-32-00-010-108-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 a ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 78-32-00-040-080-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 a ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
C. Deactivation of the Thrust Reverser for Maintenance
Subtask 78-32-00-010-109-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) Manually extend the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-802).
4. Procedure(1) Manually extend the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-802).
Subtask 78-32-00-210-078-A ** ON A/C NOT FOR ALL
A. GVI of the Thrust Reverser Blocker Doors
(2) Visually examine the blocker doors.
(4) Look for loose or missing bolts, washers and nuts. If you find loose, missing or damaged hardware, replace the hardware (Ref. AMM TASK 78-32-33-000-801) and (Ref. AMM TASK 78-32-33-400-801).
5. Close-upCAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
(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 blocker doors.
NOTE: This procedure is for the left thrust reverser blocker doors. The procedure for the right thrust reverser blocker doors is the same.
(3) Look for cracks, holes, punctures, gouges, corrosion and other damage. If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition. (4) Look for loose or missing bolts, washers and nuts. If you find loose, missing or damaged hardware, replace the hardware (Ref. AMM TASK 78-32-33-000-801) and (Ref. AMM TASK 78-32-33-400-801).
Subtask 78-32-00-410-103-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) Manually retract the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-802).
Subtask 78-32-00-440-075-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Manually retract the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-802).
B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-32-00-410-104-A ** ON A/C NOT FOR ALL