DOC AIRBUS | AMM A320FGeneral Visual Inspection of Thrust Reverser (EWIS)
TASK 05-24-50-200-001-A
General Visual Inspection of Thrust Reverser (EWIS)
Refer to the MPD TASK: ZL-451-01
GENERAL VISUAL INSPECTION OF THRUST REVERSER (EWIS)
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 05-24-50-010-050-B ** ON A/C NOT FOR ALL
Subtask 05-24-50-210-050-A ** ON A/C NOT FOR ALL
Subtask 05-24-50-410-050-B ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.03.31 22:49:57 UTC
General Visual Inspection of Thrust Reverser (EWIS)
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
1. Reason for the JobRefer to the MPD TASK: ZL-451-01
GENERAL VISUAL INSPECTION OF THRUST REVERSER (EWIS)
NOTE: This task can help you to do fuel savings.
NOTE: This is an Electrical Wiring Interconnection System (EWIS) procedure. EWIS is defined in ESPM 20-33-11.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) |
| No specific | 1 | FLASHLIGHT |
| No specific | 1 | MIRROR - INSPECTION |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 451 | THRUST REVERSER |
| 452 | THRUST REVERSER |
| 461 | THRUST REVERSER |
| 462 | THRUST REVERSER |
| 437AL, 438AR, 447AL, 448AR, 451AL, 452AR, 461AL, 462AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-010-040-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-010-040-B | Opening of the Fan Cowl Doors |
| TASK 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-010-A | Closing of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-410-040-A | Closing of the Fan Cowl Doors |
| TASK 71-13-00-410-040-B | Closing of the Fan Cowl Doors |
| TASK 71-13-00-410-802-A | Closing of the Fan Cowl Doors |
| TASK 78-30-00-040-012-A | Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance |
| TASK 78-30-00-040-805-A | Deactivation of the Thrust Reverser System for Ground Maintenance |
| TASK 78-30-00-081-041-A | Make the Thrust Reverser Serviceable after Maintenance |
| TASK 78-30-00-081-041-B | Make the Thrust Reverser Serviceable after Maintenance |
| TASK 78-30-00-440-012-A | Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance |
| TASK 78-30-00-440-805-A | Reactivation of the Thrust Reverser System after Ground Maintenance |
| TASK 78-30-00-481-041-A | Make the Thrust Reverser Unserviceable for Maintenance |
| TASK 78-30-00-481-041-B | Make the Thrust Reverser Unserviceable for Maintenance |
| TASK 78-32-00-010-010-A | Opening of the Thrust Reverser Halves |
| TASK 78-32-00-410-010-A | Closing of the Thrust Reverser Halves |
| TASK 78-32-00-860-010-A | Manual Extension of the Thrust Reverser Translating Sleeves |
| TASK 78-32-00-860-011-A | Manual Retraction of the Thrust Reverser Translating Sleeves |
| TASK 78-32-00-860-802-A | Manual Extension of the Thrust-Reverser Translating Sleeves |
| TASK 78-32-00-860-803-A | Manual Retraction of the Thrust-Reverser Translating Sleeves |
| TASK 78-32-01-000-010-A | Removal of the Left Thrust Reverser Half - Eng No. 1 |
| TASK 78-32-01-400-010-A | Installation of the Left Thrust Reverser Half - Eng No. 1 |
| TASK 78-32-02-000-010-A | Removal of the Left Thrust Reverser Half - Eng No. 2 |
| TASK 78-32-02-400-010-A | Installation of the Left Thrust Reverser Half - Eng No. 2 |
| TASK 78-32-03-000-010-A | Removal of the Right Thrust Reverser Half - Eng No. 1 |
| TASK 78-32-03-400-010-A | Installation of the Right Thrust Reverser Half - Eng No. 1 |
| TASK 78-32-04-000-010-A | Removal of the Right Thrust Reverser Half - Eng. No. 2 |
| TASK 78-32-04-400-010-A | Installation of the Right Reverser Half - Eng. No. 2 |
| TASK 78-32-41-860-001-A | Manual Deployment of the Blocker Door |
| TASK 78-32-41-860-002-A | Manual Stowing of the Blocker Door |
| TASK 78-32-41-860-040-A | Manual Deployment of the Blocker Door |
| TASK 78-32-41-860-041-A | Manual Stowing of the Blocker Door |
| TASK 78-36-00-010-040-A | Opening of the Thrust Reverser Doors |
| TASK 78-36-00-010-040-B | Opening of the Thrust Reverser Doors |
| TASK 78-36-00-010-802-A | Opening of the Thrust Reverser Cowl-Doors |
| TASK 78-36-00-410-040-A | Closing of the Thrust Reverser Doors |
| TASK 78-36-00-410-040-B | Closing of the Thrust Reverser Doors |
| TASK 78-36-00-410-802-A | Closing of the Thrust Reverser Cowl-Doors |
Access Doors of the Left Nacelle (Left Side)Subtask 05-24-50-010-050-B ** ON A/C NOT FOR ALL
A. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) in position at zone 451 (461).
(2) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
Subtask 05-24-50-010-050-C ** ON A/C NOT FOR ALL (1) Put the ACCESS PLATFORM 2M (6 FT) in position at zone 451 (461).
(2) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
WARNING:
MAKE SURE THAT YOU DO THE DEACTIVATION OF THE THRUST REVERSER BEFORE YOU DO MAINTENANCE WORK ON OR AROUND THE THRUST REVERSER.
IF YOU DO NOT DO THIS PROCEDURE, THERE IS A RISK OF UNWANTED OPERATION AND THUS OF INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(3) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041). A. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) in position at zone 451 (461).
(2) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-010):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
Subtask 05-24-50-010-050-E ** ON A/C NOT FOR ALL (1) Put the ACCESS PLATFORM 2M (6 FT) in position at zone 451 (461).
(2) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-010):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
WARNING:
MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
(3) Deactivate the thrust reverser Hydraulic Control Unit (HCU) (Ref. AMM TASK 78-30-00-040-012). CAUTION:
DO NOT EXTEND THE THRUST REVERSER TRANSLATING SLEEVE WITH THE THRUST REVERSER HALVES FULLY OPEN. IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE CAN OCCUR TO:
- THE SYNCHRONIZING CABLES OF THE TRANSLATING SLEEVE
- THE HINGE ACCESS PANELS OF THE THRUST REVERSER HALVES
- THE PYLON PROFILES, AND
- THE TRANSLATING SLEEVE.
(4) Remove the applicable hinge access panels (Ref. AMM TASK 78-32-01-000-010), (Ref. AMM TASK 78-32-02-000-010), (Ref. AMM TASK 78-32-03-000-010) and (Ref. AMM TASK 78-32-04-000-010).A. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) in position at zones 451 (461).
(2) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
Subtask 05-24-50-010-050-F ** ON A/C NOT FOR ALL (1) Put the ACCESS PLATFORM 2M (6 FT) in position at zones 451 (461).
(2) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
WARNING:
MAKE SURE THAT YOU DO THE DEACTIVATION OF THE THRUST REVERSER BEFORE YOU DO MAINTENANCE WORK ON OR AROUND THE THRUST REVERSER.
IF YOU DO NOT DO THIS PROCEDURE, THERE IS A RISK OF UNWANTED OPERATION AND THUS OF INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(3) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041). A. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) in position at zone 451 (461).
(2) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
4. Procedure(1) Put the ACCESS PLATFORM 2M (6 FT) in position at zone 451 (461).
(2) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
WARNING:
MAKE SURE THAT YOU DO THE DEACTIVATION OF THE THRUST REVERSER BEFORE YOU DO MAINTENANCE WORK ON OR AROUND THE THRUST REVERSER.
IF YOU DO NOT DO THIS PROCEDURE, THERE IS A RISK OF UNWANTED OPERATION AND THUS OF INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(3) Do the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805). Subtask 05-24-50-210-050-A ** ON A/C NOT FOR ALL
A. Inspection
(a) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-32-00-010-010):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting and piping) are correctly attached.
(f) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-32-00-410-010):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(2) Inspection with the thrust-reverser translating sleeves in the extended position:
(a) Manually extend the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-010).
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that there are no signs of excessive play, cracks, wear or other obvious damage or loose or missing fasteners or worn bearings on the blocker doors.
(f) Manually retract the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-011).
Subtask 05-24-50-210-050-B ** ON A/C NOT FOR ALL WARNING:
DO NOT EXTEND THE SLATS AND FLAPS WHEN THE THRUST REVERSER COWLS ARE DEPLOYED IN THE 45 DEG. POSITION.
CAUTION:
DO NOT EXTEND THE THRUST REVERSER TRANSLATING SLEEVE WITH THE THRUST REVERSER HALVES OPEN. DAMAGE TO EQUIPMENT CAN OCCUR.
(1) Inspection with the thrust reverser cowl-doors in the open position:(a) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-32-00-010-010):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting and piping) are correctly attached.
(f) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-32-00-410-010):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(2) Inspection with the thrust-reverser translating sleeves in the extended position:
(a) Manually extend the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-010).
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that there are no signs of excessive play, cracks, wear or other obvious damage or loose or missing fasteners or worn bearings on the blocker doors.
(f) Manually retract the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-011).
A. Inspection
(a) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-040):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting, piping) are correctly attached.
(f) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-040):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(2) Inspection with the thrust-reverser blocker-doors in the deployed position:
(a) Manually deploy the blocker doors (Ref. AMM TASK 78-32-41-860-040).
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting, piping) are correctly attached.
(f) Manually stow the blocker doors (Ref. AMM TASK 78-32-41-860-041).
Subtask 05-24-50-210-050-C ** ON A/C NOT FOR ALL WARNING:
DO NOT EXTEND THE SLATS AND FLAPS WHEN THE THRUST REVERSER COWLS ARE DEPLOYED IN THE 45 DEG. POSITION.
(1) Inspection with the thrust reverser cowl-doors in the open position:(a) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-040):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting, piping) are correctly attached.
(f) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-040):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(2) Inspection with the thrust-reverser blocker-doors in the deployed position:
(a) Manually deploy the blocker doors (Ref. AMM TASK 78-32-41-860-040).
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting, piping) are correctly attached.
(f) Manually stow the blocker doors (Ref. AMM TASK 78-32-41-860-041).
A. Inspection
(a) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-040):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting, piping) are correctly attached.
(f) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-040):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(2) Inspection with the thrust-reverser blocker-doors in the deployed position:
(a) Manually deploy the blocker doors (Ref. AMM TASK 78-32-41-860-001).
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting, piping) are correctly attached.
(f) Manually stow the blocker doors (Ref. AMM TASK 78-32-41-860-002).
Subtask 05-24-50-210-050-E ** ON A/C NOT FOR ALL WARNING:
DO NOT EXTEND THE SLATS AND FLAPS WHEN THE THRUST REVERSER COWLS ARE DEPLOYED IN THE 45 DEG. POSITION.
(1) Inspection with the thrust reverser cowl-doors in the open position:(a) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-040):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting, piping) are correctly attached.
(f) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-040):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(2) Inspection with the thrust-reverser blocker-doors in the deployed position:
(a) Manually deploy the blocker doors (Ref. AMM TASK 78-32-41-860-001).
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting, piping) are correctly attached.
(f) Manually stow the blocker doors (Ref. AMM TASK 78-32-41-860-002).
A. Inspection
(a) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting and piping) are correctly attached.
(f) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(2) Inspection with the thrust-reverser translating sleeves in the extended position:
(a) Manually extend the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-802).
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting and piping) are correctly attached.
(f) Manually retract the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-803).
5. Close-upWARNING:
DO NOT EXTEND THE SLATS AND FLAPS WHEN THE THRUST REVERSER COWLS ARE DEPLOYED IN THE 45 DEG. POSITION.
CAUTION:
DO NOT EXTEND THE THRUST REVERSER TRANSLATING SLEEVE WITH THE THRUST REVERSER HALVES OPEN. DAMAGE TO EQUIPMENT CAN OCCUR.
(1) Inspection with the thrust reverser cowl-doors in the open position:(a) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting and piping) are correctly attached.
(f) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
1 For the left engine: 451AL and 452AR.
2 For the right engine: 461AL and 462AR.
(2) Inspection with the thrust-reverser translating sleeves in the extended position:
(a) Manually extend the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-802).
(b) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(c) Do a general visual inspection of the thrust reverser and the area below the thrust reverser.
(d) Make sure that there are no signs of corrosion, cracks or damage.
(e) Make sure that all the installations (wiring, ducting and piping) are correctly attached.
(f) Manually retract the thrust-reverser translating sleeves (Ref. AMM TASK 78-32-00-860-803).
Subtask 05-24-50-410-050-B ** 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) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
(4) Remove the access platform(s).
(5) Remove all the fixtures, tools, test and support equipment used during this procedure.
Subtask 05-24-50-410-050-C ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
(4) Remove the access platform(s).
(5) Remove all the fixtures, tools, test and support equipment used during this procedure.
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable hinge access panels (Ref. AMM TASK 78-32-01-400-010), (Ref. AMM TASK 78-32-02-400-010), (Ref. AMM TASK 78-32-03-400-010) and (Ref. AMM TASK 78-32-04-400-010).
(3) Do the reactivation of the thrust reverser Hydraulic Control Unit (HCU) (Ref. AMM TASK 78-30-00-440-012).
(4) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-010):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
(5) Remove the access platform(s).
(6) Remove all the fixtures, tools, test and support equipment used during this procedure.
Subtask 05-24-50-410-050-E ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable hinge access panels (Ref. AMM TASK 78-32-01-400-010), (Ref. AMM TASK 78-32-02-400-010), (Ref. AMM TASK 78-32-03-400-010) and (Ref. AMM TASK 78-32-04-400-010).
(3) Do the reactivation of the thrust reverser Hydraulic Control Unit (HCU) (Ref. AMM TASK 78-30-00-440-012).
(4) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-010):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
(5) Remove the access platform(s).
(6) Remove all the fixtures, tools, test and support equipment used during this procedure.
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
(4) Remove the access platform(s).
(5) Remove all the fixtures, tools, test and support equipment used during this procedure.
Subtask 05-24-50-410-050-F ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
(4) Remove the access platform(s).
(5) Remove all the fixtures, tools, test and support equipment used during this procedure.
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
(4) Remove the access platform(s).
(5) Remove all the fixtures, tools, test and support equipment used during this procedure.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) For the left engine: 437AL and 438AR.
(b) For the right engine: 447AL and 448AR.
(4) Remove the access platform(s).
(5) Remove all the fixtures, tools, test and support equipment used during this procedure.