W DOC AIRBUS | AMM A320F

Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors

TASK 52-10-00-790-001-A
Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors

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
AR
SAFETY CLIP - CIRCUIT BREAKER
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.14CCB6)
Testing Medium-Leak Detection - Oxygen System
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
831, 832, 841, 842
 D. Referenced Information
REFERENCE
DESIGNATION
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
F Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors ** ON A/C NOT FOR ALL
F Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 52-10-00-010-099-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 an ACCESS PLATFORM 3M (10 FT) in position in front of the applicable passenger/crew door 831 or 841 or 832 or 842.
   (2) Open the 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 52-10-00-865-093-A
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
121VUEIS/SLIDES/ARM AND WARN/FLT15WNP11
121VUEIS/SLIDES/ARM AND WARN/GND13WNP10
121VUEIS/SDAC1 AND 2/DOOR/DET/PAX48WVP05
4. Procedure
Subtask 52-10-00-790-050-A
A. Leak Test at the Filling Valve
F Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors ** ON A/C NOT FOR ALL
F Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors ** ON A/C NOT FOR ALL
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.
   (1) Remove the blanking plug (1) of the filling valve (2).
   (2) Use the oxygen leak detector Testing Medium-Leak Detection - Oxygen System (Material No.14CCB6) to make sure that there are no leaks at the filling valve (2) and the end nuts (3) of the filling valve.
   (3) Install the blanking plug (1) on the filling valve (2).
Subtask 52-10-00-790-051-A
B. Leak Test at the Percussion Mechanism
F Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors ** ON A/C NOT FOR ALL
F Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors ** ON A/C NOT FOR ALL
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.
   (1) Use the oxygen leak detector Testing Medium-Leak Detection - Oxygen System (Material No.14CCB6) to make sure that there are no leaks at the percussion mechanism (4).
Subtask 52-10-00-790-052-A
C. Leak Test at the Cylinder Body and Pressure Gauge
F Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors ** ON A/C NOT FOR ALL
F Leak Test of the Damper and Emergency Operation Cylinder of the Passenger/Crew Doors ** ON A/C NOT FOR ALL
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.
   (1) Use the oxygen leak detector Testing Medium-Leak Detection - Oxygen System (Material No.14CCB6) to make sure that there are no leaks at the cylinder body (5) and the pressure gauge (6).
5. Close-up
Subtask 52-10-00-865-094-A
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
121VUEIS/SLIDES/ARM AND WARN/FLT15WNP11
121VUEIS/SLIDES/ARM AND WARN/GND13WNP10
121VUEIS/SDAC1 AND 2/DOOR/DET/PAX48WVP05
Subtask 52-10-00-410-109-A
B. 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 door (Ref. AMM TASK 52-10-00-860-002).
   (3) Close the passenger/crew door 831 or 841 or 832 or 842 (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] 2026.04.01 12:43:53 UTC
"Aviabrain" 2025