W DOC AIRBUS | AMM A320F

General Visual Inspection of APU Compartment Draining System (131-9(A))


TASK 49-17-00-200-802-A
General Visual Inspection of APU Compartment Draining System (131-9(A))


WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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)
No specific
1
PROBE - NON METALLIC, FLEXIBLE
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.08ABC1)
Aqueous Cleaner-Aircraft Exterior Pressure Spraying -
(Material No.14SBA1)
Textile-Lint free Cotton -
3. Job Set-up
Subtask 49-17-00-010-054-A ** ON A/C NOT FOR ALL
A. Get Access
   (1) Put the ACCESS PLATFORM 2M (6 FT) in position below the APU compartment.
4. Procedure
Subtask 49-17-00-210-050-A ** ON A/C NOT FOR ALL
A. General Visual Inspection of APU Compartment Drain System
   (1) Clean the area around the draining holes with a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) and Aqueous Cleaner-Aircraft Exterior Pressure Spraying - (Material No.08ABC1) .
   (2) Examine the draining holes for blockage. If necessary, remove the blockage.
   (3) If blockage is found into the drain mast, use a PROBE - NON METALLIC, FLEXIBLE to make sure that the drain pipe is not blocked.
   (4) If the drain pipe is blocked, remove the blockage.
   (5) Make sure that the drains are not blocked:
     (a) Put water in the area of the drain hole and make sure that the water flows freely at the drain mast outlet.
   (6) Make sure that the drain mast is correctly aligned.
5. Close-up
Subtask 49-17-00-410-054-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) Remove the access platform(s).
   (3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 01:28:26 UTC