DOC AIRBUS | AMM A320FGeneral Visual Inspection of the Fan Cowl Doors [PW11]
TASK 71-13-00-200-802-A
General Visual Inspection of the Fan Cowl Doors
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 71-13-00-941-073-A ** ON A/C NOT FOR ALL
Subtask 71-13-00-210-074-A ** ON A/C NOT FOR ALL
Subtask 71-13-00-410-082-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:32:08 UTC
General Visual Inspection of the Fan Cowl Doors
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 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | Torque wrench: range to between 60.5 and 55 lbf.in (0.68 and 0.62 m.daN )  |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.PU5-0005) | anti-seize compound |
| (Material No.PU5-0005A) | anti-seize compound |
| (Material No.PU5-0005B) | anti-seize compound |
| 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 23-44-41-000-803-A | Removal of the Maintenance-Interphone Jack Harness |
| TASK 23-44-41-400-803-A | Installation of the Maintenance-Interphone Jack Harness |
| 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 71-13-00-210-804-A | General Visual Inspection of Fan Cowl Doors Hinges and Surrounding Structure (150mm around Hinge Fittings) |
| TASK 71-13-00-410-802-A | Closing of the Fan Cowl Doors |
| TASK 71-13-08-000-801-A | Removal of the Forward Fan Cowl Door Hold Open Rods (HOR) |
| TASK 71-13-08-400-801-A | Installation of the Forward Fan Cowl Door Hold Open Rods (HOR) |
| TASK 71-13-09-000-801-A | Removal of the Fan Cowl Aft Hold Open Rod (HOR) |
| TASK 71-13-09-400-801-A | Installation of the Fan Cowl Aft Hold Open Rod (HOR) |
| TASK 71-13-10-210-801-A | General Visual Inspection of the Fan Cowl Baulk Bracket |
| TASK 71-13-11-220-801-A | Detailed Inspection of the Fan Cowl Latches |
| TASK 71-13-13-000-802-A | Removal of the Fan Cowl Push Open Device (POD) |
| TASK 71-13-13-400-802-A | Installation of the Fan Cowl Push Open Device (POD) |
| TASK 71-13-21-200-802-A | General Visual Inspection of the Fan Cowl Door Keepers and Keeper Housings |
| TASK 71-13-22-000-801-A | Removal of the Fan Cowl Proximity Sensor Switches |
| TASK 71-13-22-400-801-A | Installation of the Fan Cowl Proximity Sensor Switches |
| TASK 71-13-61-000-801-A | Removal of the Fan Cowl Latch Proximity Sensor Harness |
| TASK 71-13-61-400-801-A | Installation of the Fan Cowl Latch Proximity Sensor Harness |
General Visual Inspection of the Fan Cowl DoorsSubtask 71-13-00-941-073-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 71-13-00-010-086-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
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
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
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 71-13-00-210-074-A ** ON A/C NOT FOR ALL
A. General Visual Inspection of the Fan Cowl Doors
(2) Find the fan cowl doors behind the inlet cowl.
(3) Examine the surfaces of the fan cowl doors. Look for delamination, gouges, cracks, holes, punctures and broken fibers.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(4) Examine the upper and lower longerons and the stiffeners on the fan cowl doors. Look for abrasion, gouges, scratches and nicks. Look for disbonds on the lower longeron.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(5) Examine the axial locators on the fan cowl doors. Look for cracks, gouges, holes and distortion.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(6) Examine the wear strips and the rubstrip panels on the edges of the fan cowl doors. Look for cracks, holes, gouges and loose or missing rivets.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(7) Examine the hoist points on the fan cowl doors for damaged or missing screws.
(a) If you find damage, replace the damaged or missing screws as follows:
1 Remove the damaged screw from the fan cowl door.
2 Apply a thin layer of anti-seize compound (Material No.PU5-0005) or anti-seize compound (Material No.PU5-0005A) or anti-seize compound (Material No.PU5-0005B) to the threads of the new screw.
3 Install the new screw in the fan cowl door.
4 TORQUE the screw to between 60.5 and 55 lbf.in (0.68 and 0.62 m.daN ).
(8) Examine the strakes on the fan cowl doors. If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(9) Examine the hinges on the fan cowl doors (Ref. AMM TASK 71-13-00-210-804).
(10) Examine the fan cowl door latches and latch housing on the left fan cowl door (Ref. AMM TASK 71-13-11-220-801).
(11) If the baulk bracket is there, examine the baulk bracket assembly above the aft fan cowl door latch on the left fan cowl door (Ref. AMM TASK 71-13-10-210-801).
(12) Examine the fan cowl door keepers and keeper housings (Ref. AMM TASK 71-13-21-200-802).
(13) Examine the forward Hold Open Rod (HOR) on the fan cowl doors. Look for nicks, scratches, dents and other damage.
(a) If you find damage, replace the forward hold-open rod (Ref. AMM TASK 71-13-08-000-801) and (Ref. AMM TASK 71-13-08-400-801).
(14) Examine the aft hold-open rod on the fan cowl doors. Look for nicks, scratches, dents and other damage.
(a) If you find damage, replace the aft hold-open rod (Ref. AMM TASK 71-13-09-000-801) and (Ref. AMM TASK 71-13-09-400-801), or
(b) Contact Collins Aerospace for disposition.
(15) Examine the oil tank access door on the left fan cowl door. Look for abrasion, gouges, scratches and nicks. Look for disbonds on the access door.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(16) Examine the proximity sensor harness on the right fan cowl door. Look for corrosion, wear, cracks in the connectors and other damage.
(a) If you find damage, replace the harness (Ref. AMM TASK 71-13-61-000-801) and (Ref. AMM TASK 71-13-61-400-801), or
(b) Contact Collins Aerospace for disposition.
(17) Examine the proximity sensors on the right fan cowl door. Look for scratches, wear and other damage.
(a) If you find damage, replace the sensor (Ref. AMM TASK 71-13-22-000-801) and (Ref. AMM TASK 71-13-22-400-801), or
(b) Contact Collins Aerospace for disposition.
(18) Examine the push-open device on the outboard fan cowl doors. Look for wear, cracks, scratches and other damage.
(a) If you find damage, replace the push-open device (Ref. AMM TASK 71-13-13-000-802) and (Ref. AMM TASK 71-13-13-400-802), or
(b) Contact Collins Aerospace for disposition.
(19) If installed, examine the interphone jack assembly. Look for corrosion, wear, cracks in the connector and other damage.
(a) If you find damage, replace the interphone jack assembly (Ref. AMM TASK 23-44-41-000-803) and (Ref. AMM TASK 23-44-41-400-803), or
(b) Contact Collins Aerospace for disposition.
(20) Examine the assembly for unwanted objects, damage and correct assembly.
5. Close-upWARNING:
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.
CAUTION:
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 Collins Aerospace for disposition. (2) Find the fan cowl doors behind the inlet cowl.
(3) Examine the surfaces of the fan cowl doors. Look for delamination, gouges, cracks, holes, punctures and broken fibers.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(4) Examine the upper and lower longerons and the stiffeners on the fan cowl doors. Look for abrasion, gouges, scratches and nicks. Look for disbonds on the lower longeron.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(5) Examine the axial locators on the fan cowl doors. Look for cracks, gouges, holes and distortion.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(6) Examine the wear strips and the rubstrip panels on the edges of the fan cowl doors. Look for cracks, holes, gouges and loose or missing rivets.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(7) Examine the hoist points on the fan cowl doors for damaged or missing screws.
(a) If you find damage, replace the damaged or missing screws as follows:
1 Remove the damaged screw from the fan cowl door.
2 Apply a thin layer of anti-seize compound (Material No.PU5-0005) or anti-seize compound (Material No.PU5-0005A) or anti-seize compound (Material No.PU5-0005B) to the threads of the new screw.
3 Install the new screw in the fan cowl door.
4 TORQUE the screw to between 60.5 and 55 lbf.in (0.68 and 0.62 m.daN )
. (8) Examine the strakes on the fan cowl doors. If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(9) Examine the hinges on the fan cowl doors (Ref. AMM TASK 71-13-00-210-804).
(10) Examine the fan cowl door latches and latch housing on the left fan cowl door (Ref. AMM TASK 71-13-11-220-801).
(11) If the baulk bracket is there, examine the baulk bracket assembly above the aft fan cowl door latch on the left fan cowl door (Ref. AMM TASK 71-13-10-210-801).
(12) Examine the fan cowl door keepers and keeper housings (Ref. AMM TASK 71-13-21-200-802).
(13) Examine the forward Hold Open Rod (HOR) on the fan cowl doors. Look for nicks, scratches, dents and other damage.
(a) If you find damage, replace the forward hold-open rod (Ref. AMM TASK 71-13-08-000-801) and (Ref. AMM TASK 71-13-08-400-801).
(14) Examine the aft hold-open rod on the fan cowl doors. Look for nicks, scratches, dents and other damage.
(a) If you find damage, replace the aft hold-open rod (Ref. AMM TASK 71-13-09-000-801) and (Ref. AMM TASK 71-13-09-400-801), or
(b) Contact Collins Aerospace for disposition.
(15) Examine the oil tank access door on the left fan cowl door. Look for abrasion, gouges, scratches and nicks. Look for disbonds on the access door.
(a) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(16) Examine the proximity sensor harness on the right fan cowl door. Look for corrosion, wear, cracks in the connectors and other damage.
(a) If you find damage, replace the harness (Ref. AMM TASK 71-13-61-000-801) and (Ref. AMM TASK 71-13-61-400-801), or
(b) Contact Collins Aerospace for disposition.
(17) Examine the proximity sensors on the right fan cowl door. Look for scratches, wear and other damage.
(a) If you find damage, replace the sensor (Ref. AMM TASK 71-13-22-000-801) and (Ref. AMM TASK 71-13-22-400-801), or
(b) Contact Collins Aerospace for disposition.
(18) Examine the push-open device on the outboard fan cowl doors. Look for wear, cracks, scratches and other damage.
(a) If you find damage, replace the push-open device (Ref. AMM TASK 71-13-13-000-802) and (Ref. AMM TASK 71-13-13-400-802), or
(b) Contact Collins Aerospace for disposition.
(19) If installed, examine the interphone jack assembly. Look for corrosion, wear, cracks in the connector and other damage.
(a) If you find damage, replace the interphone jack assembly (Ref. AMM TASK 23-44-41-000-803) and (Ref. AMM TASK 23-44-41-400-803), or
(b) Contact Collins Aerospace for disposition.
(20) Examine the assembly for unwanted objects, damage and correct assembly.
Subtask 71-13-00-410-082-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 access platform(s).
(4) 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 access platform(s).
(4) Remove the WARNING NOTICE(S).