DOC AIRBUS | AMM A320FDetailed Inspection of the Fan Cowl Latches [PW11]
TASK 71-13-11-220-801-A
Detailed Inspection of the Fan Cowl Latches
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 71-13-11-941-081-A ** ON A/C NOT FOR ALL
Subtask 71-13-11-410-071-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 12:57:25 UTC
Detailed Inspection of the Fan Cowl Latches
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.
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 | LIGHT SOURCE - INSPECTION |
| No specific | 1 | MAGNIFYING GLASS POWER 10X |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.PU1-0001) | 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 | |
| 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 71-13-10-210-801-A | General Visual Inspection of the Fan Cowl Baulk Bracket |
| TASK 71-13-11-000-805-A | Removal of the Fan Cowl Latches |
| TASK 71-13-11-400-805-A | Installation of the Fan Cowl Latches |
Fan Cowl Door LatchesSubtask 71-13-11-941-081-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 71-13-11-010-078-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
4. Procedure(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
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 71-13-11-110-054-A ** ON A/C NOT FOR ALL A. Clean the fan cowl door-latches and the adjacent structure.
(1) Clean the fan cowl latches, the attachment hardware and the adjacent structure with a clean cloth (Material No.PU1-0001) andPU2-0001 alcohol, isopropyl
(2) Remove thePU2-0001 alcohol, isopropyl PU2-0001 alcohol, isopropyl
Subtask 71-13-11-220-050-A ** ON A/C NOT FOR ALL (1) Clean the fan cowl latches, the attachment hardware and the adjacent structure with a clean cloth (Material No.PU1-0001) and
(2) Remove the
B. Visually examine the fan cowl door latches.
(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 Collins Aerospace for disposition.
(2) Use the LIGHT SOURCE - INSPECTION and MAGNIFYING GLASS POWER 10X and examine the fan cowl door latches. Look for cracks, gouges, corrosion and broken parts. If you find damage, replace the latch or contact Collins Aerospace for disposition (Ref. AMM TASK 71-13-11-000-805) and (Ref. AMM TASK 71-13-11-400-805).
(3) Examine the attachment hardware as follows:
(a) Use the LIGHT SOURCE - INSPECTION and MAGNIFYING GLASS POWER 10X and examine the bolts, washers and nuts on the latches. Look for loose, missing or damaged parts. If you find damage, replace the damaged part (Ref. AMM TASK 71-13-11-000-805) and (Ref. AMM TASK 71-13-11-400-805).
(b) Make sure that the bolts, washers and nuts are correctly attached. Tighten or replace the part as necessary (Ref. AMM TASK 71-13-11-000-805) and (Ref. AMM TASK 71-13-11-400-805).
(4) Use the LIGHT SOURCE - INSPECTION and MAGNIFYING GLASS POWER 10X and examine the structure adjacent to the latches. Look for dents, cracks, gouges, corrosion or wear.
(a) If you find damage, refer to the Structural Repair Manual (SRM) for allowable damage limits and repair procedures or contact Collins Aerospace Systems for disposition.
(5) If the baulk bracket is there, examine the baulk bracket assembly (Ref. AMM TASK 71-13-10-210-801).
5. Close-up(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 Collins Aerospace for disposition.
(2) Use the LIGHT SOURCE - INSPECTION and MAGNIFYING GLASS POWER 10X and examine the fan cowl door latches. Look for cracks, gouges, corrosion and broken parts. If you find damage, replace the latch or contact Collins Aerospace for disposition (Ref. AMM TASK 71-13-11-000-805) and (Ref. AMM TASK 71-13-11-400-805).
(3) Examine the attachment hardware as follows:
(a) Use the LIGHT SOURCE - INSPECTION and MAGNIFYING GLASS POWER 10X and examine the bolts, washers and nuts on the latches. Look for loose, missing or damaged parts. If you find damage, replace the damaged part (Ref. AMM TASK 71-13-11-000-805) and (Ref. AMM TASK 71-13-11-400-805).
(b) Make sure that the bolts, washers and nuts are correctly attached. Tighten or replace the part as necessary (Ref. AMM TASK 71-13-11-000-805) and (Ref. AMM TASK 71-13-11-400-805).
(4) Use the LIGHT SOURCE - INSPECTION and MAGNIFYING GLASS POWER 10X and examine the structure adjacent to the latches. Look for dents, cracks, gouges, corrosion or wear.
(a) If you find damage, refer to the Structural Repair Manual (SRM) for allowable damage limits and repair procedures or contact Collins Aerospace Systems for disposition.
(5) If the baulk bracket is there, examine the baulk bracket assembly (Ref. AMM TASK 71-13-10-210-801).
Subtask 71-13-11-410-071-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 fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(3) Remove the WARNING NOTICE(S).