Removal of the Control Unit of the Cockpit Door Locking System (CDLS)

TASK 52-51-14-000-001-A
Removal of the Control Unit of the Cockpit Door Locking System (CDLS)

FIN: 24MQ

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

REFERENCE	QTY	DESIGNATION
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
Control Unit of the CDLS

3. Job Set-up
Subtask 52-51-14-860-051-A

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

Subtask 52-51-14-865-050-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	DOORS/PAX/MONG	1MQ	T13
** ON A/C NOT FOR ALL
122VU	DOORS CKPT LOCK	1MQ	T13
122VU	COCKPIT DOOR LOCK SYSTEM	1MQ	T13

4. Procedure
Subtask 52-51-14-020-050-A

A. Removal of the Control Unit
(1) Hold the control unit (1) and loosen the captive screws (2).

CAUTION: BE CAREFUL DURING REMOVAL/INSTALLATION OF THE CONTROL UNIT. THE BONDING WIRES ARE SHORT AND DAMAGE CAN EASILY OCCUR TO THEM.

(2) Carefully pull the control unit (1) to get access to the electrical connectors (3) and (4).
(3) Disconnect the electrical connectors (3) and (4) and remove the control unit (1).
(4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.

[Rev.10 from 2021] 2026.04.02 06:28:25 UTC