Removal of the Door Damper and Emergency Operation Cylinder

TASK 52-22-14-000-001-A
Removal of the Door Damper and Emergency Operation Cylinder

ZONE: 830
ZONE: 840
FIN: 1600WM ** ON A/C NOT FOR ALL
FIN: 1601WM ** ON A/C NOT FOR ALL
FIN: 1602WM ** ON A/C NOT FOR ALL
FIN: 1603WM ** ON A/C NOT FOR ALL

1. Reason for the Job

NOTE: The steps related to the Cabin Intercommunication Data System (CIDS) are only applicable on aircraft when the related door damper and emergency cylinder is connected to the CIDS.

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	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
830	L PASSENGER/CREW DOORS & EMERGENCY EXITS
840	R PASSENGER/CREW DOORS & EMERGENCY EXITS

C. Referenced Information

REFERENCE	DESIGNATION
TASK 25-23-47-000-012-A	Removal of the Door Linings of the LH FWD Emergency Exit Door, zone 231
TASK 25-23-47-000-013-A	Removal of the Door Linings of the RH FWD Emergency Exit Door at zone 251 or RH AFT at zone 252 or LH AFT at zone 232.
TASK 25-23-47-000-802-A	Removal of the Door Linings of the Emergency Exit, zones 251/252
TASK 52-22-00-010-001-A	Opening of the Emergency Exit Doors from the Passenger Compartment
TASK 52-22-00-860-003-A	Special Precaution before Maintenance on the Door Damper and Emergency Operation Cylinder
Door Damper and Emergency Operation Cylinder ** ON A/C NOT FOR ALL
Door Damper and Emergency Operation Cylinder ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 52-22-14-865-050-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	COM/CIDS/DEU B/ESS	153RH	G03
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU B NORM/R	620RH	M08
121VU	COM NAV/CIDS/DEU B NORM/L	619RH	M07
** ON A/C NOT FOR ALL
121VU	COM NAV/CIDS/DEU B/NORM	162RH	M09

Subtask 52-22-14-010-050-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the applicable emergency exit door (referred to as door) as necessary, but not fully (Ref. AMM TASK 52-22-00-010-001).
(2) Make sure that the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE is in position below the door.
(3) Make sure that the special precaution procedure for the door damper and emergency operation cylinder is completed (Ref. AMM TASK 52-22-00-860-003).
(4) Remove the applicable door lining (Ref. AMM TASK 25-23-47-000-012) or (Ref. AMM TASK 25-23-47-000-013)

Subtask 52-22-14-010-050-CS ** ON A/C NOT FOR ALL

4. Procedure

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.

Subtask 52-22-14-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Door Damper and Emergency Operation Cylinder
(1) Remove the electrical connections from the door damper and emergency operation cylinder (referred to as door damper) as follows:
(a) Disconnect the applicable connector (22) from the related receptacle (24) (refer to the table that follows):

---------------------------------------------------------

! DOOR ! CONNECTOR ! DOOR DAMPER ! FRAME ! CABLE LOOM !

_________________________________________________________

! FWD LH ! 360RH5-A ! 1600WM ! FR35 ! 4251VB !

! FWD RH ! 360RH6-A ! 1601WM ! FR35 ! 4250VB !

! AFT LH ! 360RH7-A ! 1602WM ! FR47.2 ! 4253VB !

! AFT RH ! 360RH8-A ! 1603WM ! FR47.2 ! 4252VB !

---------------------------------------------------------

(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(c) Temporarily attach the cable loom to the support arm.
(2) Remove the screw (13), the washer (12) and the bonding strap (11) from the door damper (1).
(3) Operate the filler valve (23) to make sure that the pressure accumulator of the door damper is bled.
(4) Remove the door damper (1) from the guide arm fitting (7) as follows:
(a) Remove and discard the cotter pin (6).
(b) Remove the nut (5) and the washer (4) from the bolt (10).
(c) Hold the door damper (1) and remove the bolt (10), the washer (9) and the safety plates (2).
(5) Remove the piston end of the door damper (1) from the yoke assembly (18) as follows:
(a) Remove and discard the cotter pin (14).
(b) Remove the nut (15) and the washer (16) from the bolt (20).
(c) Hold the piston end of the door damper (1) and carefully remove the bolt (20), the washer (19) and the spacer (17).
(6) Remove the door damper (1).

Subtask 52-22-14-020-050-B ** ON A/C NOT FOR ALL

DOOR	CONNECTOR	RECEPTACLE	FRAME	CABLE LOOM
LH	6721VC-A	6721VC	FR48A	4253VB
RH	6720VC-A	6720VC	FR48A	4252VB

[Rev.10 from 2021] 2026.04.01 12:45:00 UTC