Functional Check of Door Suspension

TASK 52-10-00-720-001-A
Functional Check of Door Suspension

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.

IF YOU DO NOT OBEY THESE INSTRUCTIONS, THE DOOR CAN OPEN WITH FORCE OR THE ESCAPE SLIDE CAN DEPLOY SUDDENLY. THIS CAN CAUSE INJURY AND/OR DAMAGE.

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:

KILL OR CAUSE SERIOUS INJURY TO PERSONS
CAUSE DAMAGE TO THE AIRCRAFT.

ZONE: 831
ZONE: 832
ZONE: 841
ZONE: 842

1. Reason for the Job
Refer to the MPD TASK: 521000-02
FUNCTIONAL CHECK OF DOOR SUSPENSION
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	AR	DYNAMOMETER 10 DAN (22 LBF) - PUSH
No specific	AR	FLASHLIGHT
No specific	AR	MIRROR - INSPECTION, FLEXIBLE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
831	FORWARD PASSENGER/CREW DOOR
832	AFT PASSENGER/CREW DOOR
841	FORWARD PASSENGER/CREW DOOR
842	AFT PASSENGER/CREW DOOR
831, 831FZ, 831GZ, 832, 832FZ, 832GZ, 841, 841FZ, 841GZ, 842, 842FZ, 842GZ

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-23-46-000-001-A	Removal of the Door Linings from the Forward Passenger/Crew Doors
TASK 25-23-46-000-002-A	Removal of the Door Linings from the Aft Passenger/Crew Doors
TASK 25-23-46-400-001-A	Installation of the Door Linings on the Forward Passenger/Crew Doors
TASK 25-23-46-400-002-A	Installation of the Door Linings on the Aft Passenger/Crew Doors
TASK 52-10-00-010-001-A	Opening of the Passenger/Crew Door
TASK 52-10-00-410-001-A	Closing of the Passenger/Crew Door
TASK 52-10-00-860-001-A	Special Precautions before Work on the Passenger/Crew Door
TASK 52-10-00-860-002-A	Special Precautions after Work on the Passenger/Crew Door
TASK 52-11-00-820-001-A	Adjustment of the Forward Passenger/Crew Door
TASK 52-11-12-220-001-A	Detailed Visual Inspection of the Door Suspension Mechanism
TASK 52-13-00-820-001-A	Adjustment of the Aft Passenger/Crew Door
TASK 52-13-12-220-001-A	Detailed Visual Inspection of the Door Suspension Mechanism
Pushbutton Switch Location

3. Job Set-up
Subtask 52-10-00-861-054-A

A. Aircraft Maintenance Configuration
(1) Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 52-10-00-010-052-A

B. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position in front of the applicable passenger/crew door.
(2) Open the applicable passenger/crew door 831 or 841 or
832 or 842 (Ref. AMM TASK 52-10-00-010-001).
(3) Obey the special precautions before you start work on the door (Ref. AMM TASK 52-10-00-860-001).

Subtask 52-10-00-865-052-A

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	EIS/SLIDES/ARM AND WARN/FLT	15WN	P11
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10
121VU	EIS/SDAC1 AND 2/DOOR/DET/PAX	48WV	P05

Subtask 52-10-00-010-088-A

D. Removal of the Door Support Arm Lining.
(1) Remove the support arm lining panels:
(a) For the forward passenger/crew doors:
(Ref. AMM TASK 25-23-46-000-001).

for the left door 831FZ 831GZ
for the right door 841FZ 841GZ

(b) For the aft passenger/crew doors:

for the left door 832FZ 832GZ
for the right door 842FZ 842GZ.
(Ref. AMM TASK 25-23-46-000-002).

4. Procedure
Subtask 52-10-00-210-056-A

A. Visual Inspection of the Support Arm.
(1) Do a check of the connections between the door and the support arm with a FLASHLIGHT and a MIRROR - INSPECTION, FLEXIBLE.
(2) Examine the support arm for cracks, signs of corrosion and marks.

Subtask 52-10-00-869-054-A

B. Aircraft Maintenance Configuration
(1) Put the door in the up position, out of the frame.

Subtask 52-10-00-720-053-A

C. Functional Test of the Door Suspension.
(1) Make sure that the door moves easily along the fuselage.
Adjust the guide arms if necessary:

for the forward passenger/crew door: (Ref. AMM TASK 52-11-00-820-001),
for the aft passenger/crew door: (Ref. AMM TASK 52-13-00-820-001).

(2) Fully open the door and make sure that it is locked.
(a) If the door is not locked, inspect the door stay mechanism:

for the forward passenger/crew door: (Ref. AMM TASK 52-11-12-220-001),
for the aft passenger/crew door: (Ref. AMM TASK 52-13-12-220-001).

Subtask 52-10-00-220-055-A

D. Check of the Load of the Pushbutton Switch.

Pushbutton Switch Location

(1) With a DYNAMOMETER 10 DAN (22 LBF) - PUSH apply a load on the pushbutton switch (1) on the door support arm. Measure the load necessary to release the door. The load must be less than or equal to 6 daN (13.4885 lbf).
If not, adjust the buffer:

for the forward passenger/crew door (Ref. AMM TASK 52-11-00-820-001)
for the aft passenger/crew door (Ref. AMM TASK 52-13-00-820-001).

Subtask 52-10-00-410-085-A

E. Closing of the Door.
(1) Close the door from the inside.

5. Close-up
Subtask 52-10-00-410-098-A

A. Installation of the Door Support Arm Lining.
(1) Install the support arm lining panels:
(Ref. AMM TASK 25-23-46-400-001),
(a) for the forward passenger/crew doors:

for the left door 831FZ 831GZ,
for the right door 841FZ 841GZ.

(b) for the aft passenger/crew doors:
(Ref. AMM TASK 25-23-46-400-002).

for the left door 832FZ 832GZ,
for the right door 842FZ 842GZ.

Subtask 52-10-00-865-053-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
121VU	EIS/SLIDES/ARM AND WARN/FLT	15WN	P11
121VU	EIS/SLIDES/ARM AND WARN/GND	13WN	P10
121VU	EIS/SDAC1 AND 2/DOOR/DET/PAX	48WV	P05

Subtask 52-10-00-410-054-A

C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Obey the special precautions after the work on the door (Ref. AMM TASK 52-10-00-860-002).
(3) Close the applicable passenger/crew door 831 or 841
832 or 842 (Ref. AMM TASK 52-10-00-410-001).
(4) Remove the access platform(s).

Subtask 52-10-00-862-054-A

D. Aircraft Maintenance Configuration
(1) De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.04.01 01:35:38 UTC