W DOC AIRBUS | AMM A320F

Detailed Inspection of Outer Wing, Bottom Skin Lower Surface at Front Spar masked by Pylon Fairing and Visible Portion of Pylon Reinforcing Plate

TASK 57-20-00-200-019-A
Detailed Inspection of Outer Wing, Bottom Skin Lower Surface at Front Spar masked by Pylon Fairing and Visible Portion of Pylon Reinforcing Plate

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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 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.
ZONE: 411
ZONE: 421
ZONE: 500
ZONE: 600
1. Reason for the Job
Refer to the MPD TASK: 572031-01
NOTE: The effectivity of this task is "ALL". To know if this task is applicable for your aircraft, refer to the MPD task applicability and the weight variant data given in the SRM introduction.
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 2M (6 FT)
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
98D27803500001
1
LOCKING TOOL ZERO POS
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
411
PYLON LEADING EDGE
421
PYLON LEADING EDGE
500
LEFT WING
600
RIGHT WING
471AL, 472AR, 481AL, 482AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 54-53-11-000-002-A
Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-000-002-B
Removal of the Pylon-to-Wing Access Panels
TASK 54-53-11-400-002-A
Installation of the Pylon-to-Wing Access Panels
TASK 54-53-11-400-002-B
Installation of the Pylon-to-Wing Access Panels
SRM 572100
 (for corrective action)
F Details of the Bottom-Skin Lower-Surface at the Front Spar
3. Job Set-up
Subtask 57-20-00-941-068-A
A. Safety Precautions
   (1) Install the 98D27803500001 LOCKING TOOL ZERO POS on the flap/slat control lever.
   (2) In the cockpit:
  • Put a WARNING NOTICE(S) in position to tell persons not to operate the flaps or slats
  • Put a WARNING NOTICE(S) in position to tell persons not to start the engines.
   (3) On panel 115VU:
  • Make sure that ENG 1 MASTER 1 and ENG 2 MASTER 2 control switches are in the OFF position.
   (4) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
Subtask 57-20-00-865-084-A
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
FOR FIN: 1000EM1 (ENGINE1)
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
FOR FIN: 1000EM2 (ENGINE2)
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
121VUENGINE/ENG2/FADEC B/AND EIU 24KS2Q40
Subtask 57-20-00-010-067-A
C. Get Access
   (1) Put the ACCESS PLATFORM 2M (6 FT) in position below the zone 521(621).
   (2) Remove the applicable pylon-to-wing access panels (Ref. AMM TASK 54-53-11-000-002):
     (a) For the left wing:
     (b) For the right wing:
4. Procedure
Subtask 57-20-00-110-069-A
A. Preparation for Inspection
   (1) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) , made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) , to clean the bottom skin lower-surface at the front spar:
  • In the area closed by the pylon fairing
  • In the area of the pylon reinforcing plate.
Subtask 57-20-00-210-065-A
B. Detailed Inspection of Outer-Wing, Bottom Skin Lower Surface at Front Spar masked by Pylon Fairing and Visible Portion of Pylon Reinforcing Plate
   (1) Examine the applicable inspection area.
Make sure that:
  • There is no corrosion or damage
  • There are no scratches or scores
  • There are no loose or damaged fasteners
  • The surface protection is in the correct condition.
NOTE: If necessary, refer to the SRM 572100 for the correct repair procedure.
5. Close-up
Subtask 57-20-00-410-069-A
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the applicable pylon-to-wing access panels (Ref. AMM TASK 54-53-11-400-002):
     (a) For the left wing:
     (b) For the right wing:
Subtask 57-20-00-865-085-A
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
FOR FIN: 1000EM1 (ENGINE1)
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
FOR FIN: 1000EM2 (ENGINE2)
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
121VUENGINE/ENG2/FADEC B/AND EIU 24KS2Q40
Subtask 57-20-00-942-069-A
C. Removal of Equipment
   (1) Remove the safety barriers.
   (2) Remove the access platform(s).
   (3) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the flap/slat control lever.
   (4) Remove the WARNING NOTICE(S).
   (5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.8 from Aug 2017] 2026.04.02 06:30:39 UTC
AVIA BRAIN PRODUCTION 2026