DOC AIRBUS | AMM A320FDetailed Inspection of the Fan Cowl Door Latches and surrounding structure (150mm around Latch fittings) [PW11]
TASK 71-13-11-200-807-A
Detailed Inspection of the Fan Cowl Door Latches and surrounding structure (150mm around Latch fittings)
Refer to the MPD TASK: 711312-01
DETAILED INSPECTION OF FAN COWL DOORS LATCHES AND SURROUNDING STRUCTURE (150MM AROUND LATCH FITTINGS)
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 71-13-11-941-088-A ** ON A/C NOT FOR ALL
Subtask 71-13-11-410-078-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:32:34 UTC
Detailed Inspection of the Fan Cowl Door Latches and surrounding structure (150mm around Latch fittings)
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: 711312-01
DETAILED INSPECTION OF FAN COWL DOORS LATCHES AND SURROUNDING STRUCTURE (150MM AROUND LATCH FITTINGS)
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | MAGNIFYING GLASS POWER 10X |
| No specific | 1 | MIRROR - INSPECTION |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.PU1-0001) | lint-free cotton cloth |
| (Material No.PU2-0001) | alcohol, isopropyl |
| 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 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 |
| SRM 512200 | |
| SRM 541400 | |
Fan Cowl Door LatchesSubtask 71-13-11-941-088-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 71-13-11-010-086-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 71-13-11-110-056-A ** ON A/C NOT FOR ALL A. Clean the fan cowl door latches and the adjacent structure.
PU2-0001 alcohol, isopropyl
(2) Remove thePU2-0001 alcohol, isopropyl PU2-0001 alcohol, isopropyl
Subtask 71-13-11-220-052-A ** ON A/C NOT FOR ALL WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(1) Clean the fan cowl latches, the attachment hardware and the adjacent structure with a clean lint-free cotton cloth (Material No.PU1-0001) and (2) Remove the
B. Visually examine the fan cowl door latches.
(1) Use the MIRROR - 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 (Ref. AMM TASK 71-13-11-000-805) (Ref. AMM TASK 71-13-11-400-805).
(2) Examine the attachment hardware as follows:
(a) Use the MIRROR - INSPECTION and MAGNIFYING GLASS POWER 10X and examine the bolts, washer 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.
(3) Use the MIRROR - 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 corrosion damage, repair or replace the damaged component parts SRM 512200 or contact United Technologies, Aerospace Systems West.
(b) If you find other damage, look for damage limits and corrective action SRM 541400 or contact United Technologies, Aerospace Systems West.
5. Close-up(1) Use the MIRROR - 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 (Ref. AMM TASK 71-13-11-000-805) (Ref. AMM TASK 71-13-11-400-805).
(2) Examine the attachment hardware as follows:
(a) Use the MIRROR - INSPECTION and MAGNIFYING GLASS POWER 10X and examine the bolts, washer 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.
(3) Use the MIRROR - 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 corrosion damage, repair or replace the damaged component parts SRM 512200 or contact United Technologies, Aerospace Systems West.
(b) If you find other damage, look for damage limits and corrective action SRM 541400 or contact United Technologies, Aerospace Systems West.
Subtask 71-13-11-410-078-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).