W DOC AIRBUS | AMM A320F

Installation of the Access Panel

TASK 57-41-37-400-010-A
Installation of the Access Panel

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.
ZONE: 521
ZONE: 621
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific
AR
SAFETY BARRIER(S)
No specific
AR
SCRAPER - NON METALLIC
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.06AAC1)
Polysulfide Sealant-General Purpose Interfay -
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14DBB1)
Release Agent-- Liquid Wax -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
521
INBOARD FIXED L.E STRUCTURE
621
INBOARD FIXED L.E STRUCTURE
472AR, 481AL
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 27-80-00-866-004-A
Extending the Slats on the Ground
TASK 27-80-00-866-005-A
Retracting the Slats on the Ground
TASK 54-53-11-000-804-A
Removal of the Pylon-to-Wing Access Panels and Doors
TASK 54-53-11-400-804-A
Installation of the Pylon-to-Wing Access Panels and Doors
TASK 57-41-37-400-002-A
Installation of the Pressure Relief Panels
F Access Panel 521GB(621GB) - Location and Detail
3. Job Set-up
Subtask 57-41-37-941-076-A
A. Safety Precautions
   (1) Make sure that the SAFETY BARRIER(S) are in position.
Subtask 57-41-37-860-072-A
B. Aircraft Maintenance Configuration
   (1) Make sure that the slats are fully extended (Ref. AMM TASK 27-80-00-866-004).
   (2) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the flap/slat control lever.
   (3) Make sure that the WARNING NOTICE(S) is in position in the cockpit to tell persons not to operate the slats.
   (4) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the applicable access panel 521GB(621GB).
Subtask 57-41-37-865-092-A
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
Subtask 57-41-37-010-076-A ** ON A/C NOT FOR ALL
D. Get Access
   (1) Make sure that access panels 481AL and 472AR are removed (Ref. AMM TASK 54-53-11-000-804).
4. Procedure
Subtask 57-41-37-210-066-A
A. Preparation for Installation
   (1) Do an inspection of the component interfaces and the adjacent area.
   (2) Use a SCRAPER - NON METALLIC and a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean:
  • the interface of the aircraft structure
  • the mating surfaces of the access panel (1).
   (3) Apply Polysulfide Sealant-General Purpose Interfay - (Material No.06AAC1) to the interface of the aircraft structure.
   (4) Apply Release Agent-- Liquid Wax - (Material No.14DBB1) to the mating surfaces of the access panel (1).
   (5) Make sure that the work area is clean and clear of tools and other items.
Subtask 57-41-37-420-066-A
B. Installation of the Access Panel 521GB(621GB)
   (1) Hold the access panel (1) in position and loosely install the bolts (2).
   (2) Set the access panel (1) so that:
  • There is clearance of 1.5 mm (0.0591 in.) +/- 0.5 mm (0.0197 in.) all around with adjacent panels.
NOTE: This does not include the clearance between panel 521GB(621GB) and panel 521EB(621EB). For this clearance refer to (Ref. AMM TASK 57-41-37-400-002).
   (3) TORQUE the bolts (2) to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in ) T.
5. Close-up
Subtask 57-41-37-410-073-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Install access panels 481AL and 472AR (Ref. AMM TASK 54-53-11-400-804).
Subtask 57-41-37-865-093-A
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
Subtask 57-41-37-860-073-A
C. Aircraft Maintenance Configuration
   (1) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the flap/slat lever control.
   (2) Retract the slats (Ref. AMM TASK 27-80-00-866-005).
Subtask 57-41-37-942-066-A
D. Removal of Equipment
   (1) Remove the access platform(s).
   (2) Remove the safety barriers.
   (3) Remove the WARNING NOTICE(S).
   (4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 02:13:26 UTC
"Aviabrain" 2025