Inspection/Check of the Damper and Emergency Operation Cylinder of the FWD Passenger/Crew Door

TASK 52-11-14-200-001-A
Inspection/Check of the Damper and Emergency Operation Cylinder of the FWD Passenger/Crew Door

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 5M (16 FT)- ADJUSTABLE
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
831, 831FZ, 831GZ, 841, 841FZ, 841GZ

C. Referenced Information

REFERENCE	DESIGNATION
TASK 25-23-46-000-001-A	Removal of the Door Linings from the Forward Passenger/Crew Doors
TASK 25-23-46-400-001-A	Installation of the Door Linings on the Forward 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 52-10-00-614-001-A	Discharging/Charging of the Door 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
Bottle of the Damper and Emergency Operation Cylinder of the FWD Door ** ON A/C NOT FOR ALL
Bottle of the Damper and Emergency Operation Cylinder of the FWD Door ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 52-11-14-010-069-A

A. 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 5M (16 FT)- ADJUSTABLE in position in front of passenger/crew door 831 or 841.
(2) Open the passenger/crew door 831 841 (Ref. AMM TASK 52-10-00-010-001).
(3) Obey the special precautions before you start work on the applicable door (Ref. AMM TASK 52-10-00-860-001).

Subtask 52-11-14-865-050-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 52-11-14-010-070-A

C. Removal of Component
(1) Remove the door linings at the FWD passenger/crew doors:
(Ref. AMM TASK 25-23-46-000-001)
(a) For the left passenger/crew door: 831FZ 831GZ.
(b) For the right passenger/crew door: 841FZ 841GZ.

4. Procedure
Subtask 52-11-14-210-051-A ** ON A/C NOT FOR ALL

A. Inspection of the Door Damper and Emergency Operation Cylinder

Bottle of the Damper and Emergency Operation Cylinder of the FWD Door ** ON A/C NOT FOR ALL

(1) Make sure that the door is open.
(2) Do a visual inspection of the door damper and emergency operation cylinder. Make sure that there are no fluid leakage, corrosion, cracks, marks or dents and that the components are correctly attached.
(3) Do a visual inspection of the paint. Make sure that the paint is not flaked or peeled.
(4) Do a check of the pressure.

CAUTION: THE PRESSURE ON THE PRESSURE INDICATOR OF THE BOTTLE MUST BE RELATED TO THE PRESSURE CORRECTED FOR TEMPERATURE.

(a) Write the pressure value shown on the pressure gauge (1).
(b) Compare this value with the value shown on the placard (2) for the ambient temperature.

NOTE: The minimum operating pressure value for the door to be serviceable is 1305 PSI at 20°C only for maintenance operation.

NOTE: To get a correct pressure, the air bottle must be stable at ambient temperature before you do the inspection.

NOTE: Bubbles in the pressure gauge with a maximum diameter equal to the dial are permitted.

(c) If the oil level, in the pressure gauge, is not sufficient to have the pointer in the liquid (with the dial horizontal), you must discard the pressure gauge.
(d) If the pressure is not correct, pressurize the cylinder bottle (Ref. AMM TASK 52-10-00-614-001).

Subtask 52-11-14-210-051-B ** ON A/C NOT FOR ALL

A. Inspection of the Door Damper and Emergency Operation Cylinder

Bottle of the Damper and Emergency Operation Cylinder of the FWD Door ** ON A/C NOT FOR ALL

(1) Make sure that the door is open.
(2) Do a visual inspection of the door damper and emergency operation cylinder.
Make sure that there are no fluid leakage, corrosion, cracks, marks or dents and that the components are correctly attached.
(3) Do a visual inspection of the paint. Make sure that the paint is not flaked or peeled.
(4) Do a check of the pressure.
(a) Make sure that the pointer in the pressure gauge (1) is in the green zone.

NOTE: To get a correct pressure, the air bottle must be stable at ambient temperature before you do the inspection.

NOTE: Bubbles in the pressure gauge with a maximum diameter equal to the dial are permitted.

(b) If the oil level, in the pressure gauge, is not sufficient to have the pointer in the liquid (with the dial horizontal), you must discard the pressure gauge.
(c) If the pressure is not correct, pressurize the cylinder bottle (Ref. AMM TASK 52-10-00-614-001).

5. Close-up
Subtask 52-11-14-410-073-A

A. Installation of Component
(1) Install the linings at the FWD passenger/crew doors:
(Ref. AMM TASK 25-23-46-400-001)
(a) For the left passenger/crew door: 831FZ 831GZ.
(b) For the right passenger/crew door: 841FZ 841GZ.

Subtask 52-11-14-865-051-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 52-11-14-410-074-A

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

[Rev.10 from 2021] 2026.04.02 06:27:22 UTC