Removal of the Support Arm, Door Buffer, Door Pushbutton Switch and Door Stay Mechanism
TASK 52-13-12-000-001-A
Removal of the Support Arm, Door Buffer, Door Pushbutton Switch and Door Stay Mechanism
1. Reason for the Job
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 52-13-12-020-053-A
[Rev.10 from 2021]
2026.04.01 01:37:12 UTC
Removal of the Support Arm, Door Buffer, Door Pushbutton Switch and Door Stay Mechanism
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 |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 832, 842 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 52-10-00-010-001-A | Opening of the Passenger/Crew Door |
| TASK 52-13-11-000-001-A | Removal of the Aft Passenger/Crew Door |
| TASK 52-13-14-000-001-B | Removal of the Door-Damper and Emergency-Operation Cylinder |
WARNING:
DO NOT OPEN THE PASSENGER/CREW DOOR IF THE WIND SPEED IS MORE THAN 65 KNOTS.
WARNING:
BEFORE YOU START WORK ON THE DOOR, MAKE SURE THAT:
- THE EMERGENCY CONTROL HANDLE IS IN THE DISARMED POSITION WITH THE SAFETY PIN INSTALLED.
- THE PERCUSSION LEVER OF THE DOOR-DAMPER AND EMERGENCY-OPERATION CYLINDER IS IN THE DISARMED POSITION WITH THE SAFETY PIN INSTALLED.
WARNING:
STOP THE OPENING PROCEDURE IF THE RED WARNING LIGHT FLASHES. IF THE RED WARNING LIGHT FLASHES, REMAINING PRESSURE CAN CAUSE THE DOOR TO OPEN SUDDENLY AND CAN:
Subtask 52-13-12-010-053-A - KILL OR CAUSE SERIOUS INJURY TO PERSONS
- CAUSE DAMAGE TO THE AIRCRAFT.
A. Get Access
(1) Put an ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position in front of the applicable passenger/crew door.
(2) Open the Aft passenger/crew door 832 ( 842) (Ref. AMM TASK 52-10-00-010-001).
Subtask 52-13-12-020-052-A (1) Put an ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position in front of the applicable passenger/crew door.
(2) Open the Aft passenger/crew door 832 ( 842) (Ref. AMM TASK 52-10-00-010-001).
B. Removal of the Component
(1) Remove the aft passenger/crew door (Ref. AMM TASK 52-13-11-000-001).
(2) Remove the door-damper and emergency-operation cylinder (Ref. AMM TASK 52-13-14-000-001).
4. Procedure(1) Remove the aft passenger/crew door (Ref. AMM TASK 52-13-11-000-001).
(2) Remove the door-damper and emergency-operation cylinder (Ref. AMM TASK 52-13-14-000-001).
Subtask 52-13-12-020-053-A
A. Removal of the Door Support Arm
(1) Remove the screws (12) and the washers (13) from the supports. Do not remove the bonding leads (11).
(2) Remove the support arm (1) as follows:
(a) Remove and discard the cotter pins (2).
(b) Release the lockwasher (7).
(c) Remove the nuts (3) and the washers (4).
(d) Hold the support arm (1).
(e) Remove the bolts (8) and (15), the lockwasher (7) then the bushes (5) and (16).
(f) Discard the lockwasher (7).
(g) Remove the support arm (1).
Subtask 52-13-12-020-054-A (1) Remove the screws (12) and the washers (13) from the supports. Do not remove the bonding leads (11).
(2) Remove the support arm (1) as follows:
(a) Remove and discard the cotter pins (2).
(b) Release the lockwasher (7).
(c) Remove the nuts (3) and the washers (4).
(d) Hold the support arm (1).
(e) Remove the bolts (8) and (15), the lockwasher (7) then the bushes (5) and (16).
(f) Discard the lockwasher (7).
(g) Remove the support arm (1).
NOTE: If necessary, remove the components from the support arm.
(3) Remove the bush (9), the adjustment washer (10), then the bush (6). B. Removal of the Door Buffer and the Door Unlocking Pushbutton Switch
(1) Remove the nuts (27) and the screws (25).
(2) Remove the door buffer (26).
(3) Remove the nuts (24), the washers (22) and the screws (21).
(4) Remove the fitting (20).
(5) Remove the pushbutton switch (23) from the support arm.
Subtask 52-13-12-020-055-A (1) Remove the nuts (27) and the screws (25).
(2) Remove the door buffer (26).
(3) Remove the nuts (24), the washers (22) and the screws (21).
(4) Remove the fitting (20).
(5) Remove the pushbutton switch (23) from the support arm.
C. Removal of the Door Stay Mechanism
(1) Remove and discard the four cotter pins (30).
(2) Remove the four nuts (31) and the washers (32) from the pins (34).
(3) Remove the door stay mechanism (33).
(1) Remove and discard the four cotter pins (30).
(2) Remove the four nuts (31) and the washers (32) from the pins (34).
(3) Remove the door stay mechanism (33).
Support Arm on the Door Frame Side