W DOC AIRBUS | AMM A320F

General Visual Inspection of the Fan Cowl Door Latches and Surrounding Structure (150 mm around Latch Fittings) [CFML]

TASK 71-13-13-210-801-A
General Visual Inspection of the Fan Cowl Door Latches and Surrounding Structure (150 mm around Latch Fittings)

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.
CAUTION: DO NOT EXTEND THE SLATS WHEN THE FAN COWLS AND THE THRUST REVERSER COWLS ARE OPEN. IF YOU DO THIS, DAMAGE TO THE AIRCRAFT CAN OCCUR.
1. Reason for the Job
Refer to the MPD TASK: 711322-01
GENERAL VISUAL 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
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
 C. Referenced Information
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 71-13-13-210-802-A
General Visual Inspection of the Fan Cowl Door Keepers
F General Visual Inspection of Fan Cowl Door Latches
3. Job Set-up
Subtask 71-13-13-941-079-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 WARNING NOTICE(S) in position to tell persons not to operate:
  • The ENG/MODE selector switch
  • The ENG/MASTER 1(2) control switch.
   (2) On the ENG section of maintenance panel 50VU:
     (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 71-13-13-010-076-A
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
4. Procedure
Subtask 71-13-13-210-053-A
A. General Visual Inspection of Fan Cowl Door Latches
   (1) Do a general visual inspection of:
  • Latch Hook
  • Handle
  • Handle Spring
  • Trigger
  • Bushing Roller
  • Housing Area.
   (2) Make sure that there are no signs of damage (corrosion, cracks, scratches, marks, abrasion, wear or dents).
   (3) If you find damage, contact SAFRAN Nacelles.
   (4) Make sure that there are no loose or missing fasteners.
   (5) If you find loose or missing fasteners, tighten the loose or replace the missing fasteners.
   (6) Make sure that there are no signs of corrosion damage up to 150 mm (5.91 in.) around the latch fitting.
   (7) If you find corrosion damage, contact SAFRAN Nacelles.
Subtask 71-13-13-210-056-A
B. General Visual Inspection of Fan Cowl Door Keepers
   (1) Do inspection of the fan cowl door keepers (Ref. AMM TASK 71-13-13-210-802).
5. Close-up
Subtask 71-13-13-410-067-A
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 71-13-00-410-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
   (3) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 02:35:00 UTC
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