Removal of the Access Panel
TASK 57-41-37-000-011-A
Removal of the Access Panel
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 57-41-37-941-075-A
Subtask 57-41-37-020-062-A
[Rev.10 from 2021]
2026.04.01 02:13:27 UTC
Removal of the Access Panel
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
1. Reason for the Job- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
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 | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 470 | ENGINE 1 AFT PYLON |
| 480 | ENGINE 2 AFT PYLON |
| 520 | LEFT WING FIXED LEADING EDGE |
| 620 | RIGHT WING FIXED LEADING EDGE |
| 471AL | |
| 414FR, 423FL | |
| 413ET, 423ET | |
| 471BL, 481AR, 481BR | |
| 482AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-80-00-866-004-A | Extending the Slats on the Ground |
| 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 |
Subtask 57-41-37-941-075-A
A. Safety Precautions
(1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
Subtask 57-41-37-860-071-A (1) As necessary, use the applicable SAFETY BARRIERS, specified by the operator's instructions and your local regulations.
B. Aircraft Maintenance Configuration
(1) Fully extend the slats (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) Put a WARNING NOTICE(S) in the cockpit to tell persons not to operate the slats.
(4) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the applicable access panel 521HB(621HB).
Subtask 57-41-37-865-091-A (1) Fully extend the slats (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) Put a WARNING NOTICE(S) in the cockpit to tell persons not to operate the slats.
(4) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the applicable access panel 521HB(621HB).
C. Open, safety and tag this(these) circuit breaker(s):
Subtask 57-41-37-010-073-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B06 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 | 5CV | B01 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/SLT/CTL/SYS2 | 7CV | R21 |
D. Get Access
(1) Remove the pylon-to-wing access panels (Ref. AMM D/O 54-53-11-00):
(a) For the left pylon:
(b) For the right pylon:
Subtask 57-41-37-010-073-C ** ON A/C NOT FOR ALL (1) Remove the pylon-to-wing access panels (Ref. AMM D/O 54-53-11-00):
(a) For the left pylon:
(b) For the right pylon:
D. Get Access
(1) Remove the pylon-to-wing access panels (Ref. AMM TASK 54-53-11-000-002):
(a) For the left pylon:
(b) For the right pylon:
Subtask 57-41-37-010-073-D ** ON A/C NOT FOR ALL (1) Remove the pylon-to-wing access panels (Ref. AMM TASK 54-53-11-000-002):
(a) For the left pylon:
(b) For the right pylon:
D. Get Access
(1) Remove the pylon-to-wing access panels (Ref. AMM TASK 54-53-11-000-002):
(a) For the left pylon:
(b) For the right pylon:
4. Procedure(1) Remove the pylon-to-wing access panels (Ref. AMM TASK 54-53-11-000-002):
(a) For the left pylon:
(b) For the right pylon:
Subtask 57-41-37-020-062-A
A. Removal of the Access Panel 521HB(621HB)
NOTE: The access panel (1) is attached to the wing skin with two different lengths of screw. Make a record of the position of each screw as it is removed.
(1) Hold the access panel (1) and remove the screws as follows: - the screw (2)
- the seven screws (3).
Access Panel 521HB(621HB) - Location and Detail