W DOC AIRBUS | AMM A320F

Repair of the Fan Cowl Latch-Paint [PW11]

TASK 71-13-00-300-801-A
Repair of the Fan Cowl Latch-Paint

WARNING: 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.
WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AND THE ADJACENT COMPONENTS AFTER ENGINE SHUTDOWN. THE ENGINE, THE ENGINE OIL AND THE ADJACENT COMPONENTS 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 Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 2M (6 FT)
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.PU1-0001)
lint-free cotton cloth
(Material No.PU1-0013)
abrasive paper, 320-grit
(Material No.PU10-0058)
brush-paint
(Material No.PU2-0001)
alcohol, isopropyl
(Material No.PU4-0014)
curing solution
(Material No.PU4-0016)
topcoat, clear polyurethane
(Material No.PU4-0042)
polyurethane coating
 C. Work Zones and Access Panels
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
 D. Referenced Information
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
F Fan Cowl Latches
3. Job Set-up
Subtask 71-13-00-941-106-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 71-13-00-010-130-A ** ON A/C NOT FOR ALL
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 the ACCESS PLATFORM 2M (6 FT) in position.
4. Procedure
CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 71-13-00-350-057-A ** ON A/C NOT FOR ALL
A. Repair the Damaged Paint on the Fan Cowl Latch
   (1) If necessary, remove the applicable fan cowl latch from the fan cowl (Ref. AMM TASK 71-13-11-000-805).
   (2) Remove the loose paint from the damaged area with PU1-0013abrasive paper, 320-grit.
NOTE: You can use 320 to 400-grit abrasive paper.
   (3) Clean the unwanted debris with the lint-free cotton cloth (Material No.PU1-0001) and PU2-0001alcohol, isopropyl. Remove the solvent with clean lint-free cotton cloth (Material No.PU1-0001) before the solvent dries.
   (4) Clean the damaged area again with a clean, lint-free cotton cloth (Material No.PU1-0001) and PU2-0001alcohol, isopropyl. Remove the solvent with a clean, lint-free cotton cloth (Material No.PU1-0001) before the solvent dries.
   (5) Clean the damaged area one more time with a clean, lint-free cotton cloth (Material No.PU1-0001) .
   (6) Mix the following in an applicable mixing cup:
  • 2 oz (59.14 ml) of PU4-0016topcoat, clear polyurethane
  • 1 oz (29.57 ml) of curing solution (Material No.PU4-0014)
  • 1 oz (29.57 ml) of polyurethane coating (Material No.PU4-0042) , (component A, pigmented Resin, color 38903, fluorescent orange)
  • 1 oz (29.57 ml) of polyurethane coating (Material No.PU4-0042) , (component B, aliphatic isocyanate resin, color 38903, fluorescent orange).
     (a) Mix the paint with an applicable mixing stick for 120 seconds.
     (b) Make sure that you mix the paint at five-minute intervals while you apply the paint.
   (7) Apply the paint to the damaged area with the brush-paint (Material No.PU10-0058) . Make sure that you apply paint on all of the surfaces of the damaged areas.
   (8) Let the paint dry for 24 to 48 hours at room temperature for maximum cure.
   (9) If you removed the fan cowl latch, install the fan cowl latch (Ref. AMM TASK 71-13-11-400-805).
5. Close-up
Subtask 71-13-00-410-123-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).
[Rev.10 from 2021] 2026.04.01 02:32:13 UTC
"Aviabrain" 2025