Discharging/Charging of the Door Damper and Emergency Operation Cylinder of the Passenger/Crew Doors

TASK 52-10-00-614-001-A
Discharging/Charging of the Door Damper and Emergency Operation Cylinder of the Passenger/Crew Doors

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

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 3M (10 FT)
No specific	1	ADAPTER DIA 0.30-32 UNF - EXTENSION
No specific	AR	FILLING EQUIPMENT - NITROGEN, PRESSURE REGULATED GAGE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	Torque wrench: range to between 1 and 0.9 m.daN (88.50 and 79.65 lbf.in )
98F52107520001	1	WRENCH-ACTUATOR,EMERGENCY DOOR

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, 832, 841, 842

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 52-10-00-410-001-A	Closing of the Passenger/Crew Door
TASK 52-10-00-790-001-A	Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors
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 52-11-14-000-001-B	Removal of the Door-Damper and Emergency-Operation Cylinder
Filling of the Door Damper and Emergency Operation Cylinder of the Passenger/Crew Doors

3. Job Set-up
Subtask 52-10-00-860-059-A

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Do the special precautions before you start the work on the door (Ref. AMM TASK 52-10-00-860-001).

Subtask 52-10-00-865-067-A

B. 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 52-10-00-010-075-A

C. Get Access

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.

(1) Put the ACCESS PLATFORM 3M (10 FT) in position in front of passenger/crew door 831, 841, 832 or 842.

4. Procedure
Subtask 52-10-00-614-051-A

A. Discharging of the Door Damper and Emergency Operation Cylinder

Filling of the Door Damper and Emergency Operation Cylinder of the Passenger/Crew Doors

WARNING: DO NOT LET COMPRESSED GAS TOUCH YOUR SKIN. THE GAS CAN GO THROUGH THE SKIN AND MAKE BUBBLES IN THE BLOOD. THIS CONDITION CAN KILL YOU.

CAUTION: MAKE SURE THAT THE TOOLS AND SPARE PARTS ARE CLEAN AND IN THE CORRECT CONDITION. CLEAN OR REPLACE THEM IF NECESSARY. IF THE TOOLS AND SPARE PARTS ARE DIRTY, CONTAMINATION CAN GO INTO THE FILLING VALVE AND NITROGEN CYLINDER AND CAUSE A NITROGEN LEAK.

(1) Remove the blanking plug (1) from the pressure filling valve (2).
(2) Put the 98F52107520001 WRENCH-ACTUATOR,EMERGENCY DOOR in position on the nut (3).
(3) Slowly loosen the nut (3) to release the pressure.
(4) Tighten the nut (3) when the pressure gage shows the necessary pressure.
(5) Remove the 98F52107520001 WRENCH-ACTUATOR,EMERGENCY DOOR from the nut (3).

CAUTION: MAKE SURE THAT THE BLANKING PLUG IS INSTALLED ON THE FILLING VALVE OF THE DOOR-DAMPER ACTUATOR CYLINDER. IF THERE IS NO BLANKING PLUG, CONTAMINATION CAN GO INTO THE FILLING VALVE AND NITROGEN CYLINDER AND CAUSE A NITROGEN LEAK.

(6) Install the blanking plug (1) on the pressure filling valve (2).

Subtask 52-10-00-614-050-C

B. Charging of the Door Damper and Emergency Operation Cylinder

Filling of the Door Damper and Emergency Operation Cylinder of the Passenger/Crew Doors

CAUTION: DO NOT APPLY MORE THAN THE SPECIFIED TORQUE TO THE NUT OF THE FILLING VALVE. OVERTORQUE WILL CAUSE DAMAGE TO THE VALVE, AND WILL THUS CAUSE LEAKAGE OF NITROGEN FROM THE CYLINDER.

CAUTION: USE ONLY NITROGEN TO INFLATE THE DOOR-DAMPER ACTUATOR CYLINDER. IF YOU USE A DIFFERENT GAS, YOU CAN CAUSE DAMAGE TO THE EQUIPMENT.

(1) Remove the blanking plug (1) from the pressure filling valve (2).
(2) Connect the FILLING EQUIPMENT - NITROGEN, PRESSURE REGULATED GAGE to the pressure filling valve (2) as follows:
(a) Install the ADAPTER DIA 0.30-32 UNF - EXTENSION on the pressure filling valve (2).
(b) Connect the FILLING EQUIPMENT - NITROGEN, PRESSURE REGULATED GAGE to the ADAPTER DIA 0.30-32 UNF - EXTENSION.
(3) Loosen the nut (3) of the pressure filling valve (2) with the 98F52107520001 WRENCH-ACTUATOR,EMERGENCY DOOR.
(4) Slowly open the filling system valve.

WARNING: WHEN YOU FILL THE ACTUATOR, MAKE SURE THAT YOU DO NOT APPLY TOO MUCH PRESSURE. AN OVERPRESSURE CAN CAUSE AN EXPLOSION, WHICH CAN CAUSE DEATH OR INJURY TO PERSONS AND/OR DAMAGE TO THE EQUIPMENT.

(5) Fill the nitrogen tank as follows:

NOTE: On the pressure gauge, each dial graduation is equal to 3.5 bar (50.76 psi).

(a) Slowly fill the nitrogen tank (for more than 10 seconds) to 69 bar (1000.76 psi) maximum.
(b) Do a check for approximately two minutes to see if the pressure decreases.
(c) If there is a leak:

Stop the filling procedure
Release the pressure, and
Remove the door damper and emergency operation cylinder
(Ref. AMM TASK 52-11-14-000-001).

(d) Slowly fill the nitrogen tank without pressure surges (for a minimum of seven seconds) to:

120 bar (1740.4524 psi) at 20 deg.C (68 deg.F) for Part Numbers (P/N) FE240-002, FE240-003, FE240-004 and FE240-006
123 bar (1783.9637 psi) at 20 deg.C (68 deg.F) for P/Ns FE240-005 and FE240-007.

NOTE:

Filling of the Door Damper and Emergency Operation Cylinder of the Passenger/Crew Doors

(e) Do a check for approximately 10 minutes to see if the pressure decreases.
(f) If there is a leak:

Stop the filling procedure
Release the pressure, and
Remove the door damper and emergency operation cylinder
(Ref. AMM TASK 52-11-14-000-001).

(6) When the pressure is stable and correct, tighten the nut (3) of the pressure filling valve (2) with the 98F52107520001 WRENCH-ACTUATOR,EMERGENCY DOOR.
(7) If the pressure is too high, loosen the nut (3) to get a leak until you get the correct pressure.
(8) Remove the 98F52107520001 WRENCH-ACTUATOR,EMERGENCY DOOR from the nut (3).
(9) Remove the ADAPTER DIA 0.30-32 UNF - EXTENSION of the nitrogen filling system from the pressure filling valve (2).
(10) TORQUE the nut (3) to between 1 and 0.9 m.daN (88.50 and 79.65 lbf.in )

.
(11) Make sure that the sealing is correct at the nut end of the pressure filling valve (2) (Ref. AMM TASK 52-10-00-790-001).

(12) Install the blanking plug (1) on the pressure filling valve (2).

5. Close-up
Subtask 52-10-00-410-084-A

A. Close Access
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Close passenger/crew door 831, 841, 832 or 842 (Ref. AMM TASK 52-10-00-410-001).
(3) Remove the access platform(s).
(4) Make sure that the work area is clean and clear of tools and other items.

Subtask 52-10-00-865-068-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 52-10-00-860-061-A

C. Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(2) Do the special precautions after the work on the door (Ref. AMM TASK 52-10-00-860-002).

[Rev.10 from 2021] 2026.04.01 06:31:22 UTC