DOC AIRBUS | AMM A320FGeneral Visual Inspection of Thrust Reverser, Latch Assembly on the Two Halves and Surrounding Structure (150 mm around Latches) [CFML]
TASK 78-32-00-210-824-A
General Visual Inspection of Thrust Reverser, Latch Assembly on the Two Halves and Surrounding Structure (150 mm around Latches)
Refer to the MPD TASK: 783222-02
GENERAL VISUAL INSPECTION OF THRUST REVERSER, LATCH ASSEMBLY ON THE TWO HALVES AND SURROUNDING STRUCTURE (150 MM AROUND LATCHES).
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 78-32-00-941-121-A
Subtask 78-32-00-210-110-A
Subtask 78-32-00-410-172-A
[Rev.10 from 2021]
2026.04.01 03:35:52 UTC
General Visual Inspection of Thrust Reverser, Latch Assembly on the Two Halves and Surrounding Structure (150 mm around Latches)
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING:
YOU MUST NOT TOUCH HOT PARTS WITHOUT APPLICABLE GLOVES. HOT PARTS CAN CAUSE AN INJURY.
ZONE: 400
1. Reason for the JobRefer to the MPD TASK: 783222-02
GENERAL VISUAL INSPECTION OF THRUST REVERSER, LATCH ASSEMBLY ON THE TWO HALVES AND SURROUNDING STRUCTURE (150 MM AROUND LATCHES).
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE |
| No specific | 1 | LIGHT SOURCE - INSPECTION |
| No specific | 1 | MIRROR - INSPECTION |
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-803-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-803-A | Closing of the Fan Cowl Doors |
| TASK 78-30-00-040-807-A | Deactivation of the Thrust Reverser System for Nacelle Maintenance (ICU) |
| TASK 78-30-00-440-807-A | Reactivation of the Thrust Reverser System after Nacelle Maintenance (ICU) |
| TASK 78-36-00-010-806-A | Opening of the Thrust Reverser Cowl Doors |
| TASK 78-36-00-410-806-A | Closing of the Thrust Reverser Cowl Doors |
| NSRM 543053 | |
| NSRM 543055 | |
| NSRM 543056 | |
General Visual Inspection of Thrust Reverser, Latch Assembly on the Two Halves and Surrounding Structure (150 mm around Latches)Subtask 78-32-00-941-121-A
A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put a WARNING NOTICE(S) in position to tell persons not to operate:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 78-32-00-010-182-A (1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put a WARNING NOTICE(S) in position to tell persons not to operate:
- The ENG/MODE selector switch
- The ENG/MASTER 1(2) control switch.
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position.
Subtask 78-32-00-040-121-A (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Put an ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position.
C. Deactivation of the Thrust Reverser System for Maintenance
Subtask 78-32-00-010-183-A 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 nacelle maintenance (Ref. AMM TASK 78-30-00-040-807). D. Get Access
(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-806):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR
4. Procedure(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-806):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR
Subtask 78-32-00-210-110-A
A. General Visual Inspection of Thrust Reverser 6 O'clock Latches Structure Left Hand (LH)/Right Hand (RH)
(a) Examine the condition of each hooks (2) (8 positions).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, contact SAFRAN Nacelles.
(2) Do a general visual inspection of the surrounding latch-fitting forward-frame (3):
(a) Examine the condition of each surrounding latch-fitting forward-frame (3).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, refer to SRM manual NSRM 543056.
(3) Do a general visual inspection of the surrounding 6 o'clock beam (4) at the latches areas (3 positions):
(a) Examine the condition of each surrounding 6 o'clock beam (4) at the latches areas (3 positions).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, refer to SRM manual NSRM 543055.
(4) Do a general visual inspection of the surrounding latch-fitting ACC (5):
(a) Examine the condition of each surrounding latch-fitting ACC (5).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, refer to SRM manual NSRM 543053.
(5) Do a general visual inspection of the keepers (6) (8 positions):
(a) Examine the condition of each keepers (6) (8 positions).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, contact SAFRAN Nacelles.
(6) Do a general visual inspection of the surrounding keeper fittings (7) (8 positions):
(a) Examine the condition of each surrounding keeper fittings (7) (8 positions).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, contact SAFRAN Nacelles.
5. Close-upNOTE: You can use for inspection a LIGHT SOURCE - INSPECTION and a MIRROR - INSPECTION.
(1) Do a general visual inspection of the latches (1) (8 positions): (a) Examine the condition of each hooks (2) (8 positions).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, contact SAFRAN Nacelles.
(2) Do a general visual inspection of the surrounding latch-fitting forward-frame (3):
(a) Examine the condition of each surrounding latch-fitting forward-frame (3).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, refer to SRM manual NSRM 543056.
(3) Do a general visual inspection of the surrounding 6 o'clock beam (4) at the latches areas (3 positions):
(a) Examine the condition of each surrounding 6 o'clock beam (4) at the latches areas (3 positions).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, refer to SRM manual NSRM 543055.
(4) Do a general visual inspection of the surrounding latch-fitting ACC (5):
(a) Examine the condition of each surrounding latch-fitting ACC (5).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, refer to SRM manual NSRM 543053.
(5) Do a general visual inspection of the keepers (6) (8 positions):
(a) Examine the condition of each keepers (6) (8 positions).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, contact SAFRAN Nacelles.
(6) Do a general visual inspection of the surrounding keeper fittings (7) (8 positions):
(a) Examine the condition of each surrounding keeper fittings (7) (8 positions).
(b) Make sure that there are no signs of cracks, scratches or dents.
1 If external damages are found, contact SAFRAN Nacelles.
Subtask 78-32-00-410-172-A
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-doors (Ref. AMM TASK 78-36-00-410-806):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR
Subtask 78-32-00-440-113-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-806):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR
B. Do the reactivation of the thrust reverser system after nacelle maintenance (Ref. AMM TASK 78-30-00-440-807).
Subtask 78-32-00-410-173-A