Deactivation of the Electrical Release Strikes

TASK 52-51-00-040-010-A
Deactivation of the Electrical Release Strikes

ZONE: 220
FIN: 30MQ
FIN: 31MQ
FIN: 32MQ
Task Summary

Access	Test	Specific Tools	Mhr	E/T	Nb Men
NO	NO	NO	0.5	0.5	1

1. Reason for the Job
MMEL 52-51-06A
CDLS DOOR RELEASE STRIKE (CATCH, SPRING, SOLENOID, BOLT)
MMEL 52-51-06B
CDLS DOOR RELEASE STRIKE (CATCH, SPRING, SOLENOID, BOLT)
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
220	FWD CAB UTILITY AREAS

B. 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 52-51-00-710-001-A	Operational Test of the Routine Access
TASK 52-51-12-000-001-A	Removal of the Electrical Release Strike
TASK 52-51-12-400-001-A	Installation of the Electrical Release Strike
ESPM 2048250
AWM 525102
Electrical Release Strikes

3. Job Set-up
Subtask 52-51-00-010-055-A

A. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that access to the flight compartment is available.
(3) On overhead panel 45VU, make sure that toggle switch 21MQ is set to the NORM position.

Subtask 52-51-00-010-055-B

Subtask 52-51-00-865-081-A

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

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 52-51-00-040-058-A

A. Deactivation of the Electrical Release Strike

Electrical Release Strikes

(1) Turn the D-ring of the latch mechanism and open the cockpit door from the cockpit side.
(2) Manually move the catch of the defective electrical-release strike to make sure that it moves freely:
(a) If the plunger causes a blockage of the catch, remove the defective electrical release strike (Ref. AMM TASK 52-51-12-000-001).

NOTE: It is important to keep the splice junction connectors at the A/C wire harness. This is because of the isolation necessary to prevent a short circuit.

(b) If the catch moves freely, disconnect the A/C wire harness as follows:

NOTE: It is important to keep the splice junction connectors at the A/C wire harness. This is because of the isolation necessary to prevent a short circuit.

NOTE: The A/C wires 4 and 7 of the center electrical release strike must stay connected. This is to keep the OPEN light of the indication light 22MQ.

1 Remove the screws and the cover profile from the lavatory wall (Ref. AMM TASK 52-51-12-000-001).
2 Remove the screws and the cover plate from lavatory wall housing (Ref. AMM TASK 52-51-12-000-001).
3 Disconnect the A/C wire harness from the applicable electrical-release strike cables ESPM 2048250 and AWM 525102.
4 Put the cover plate on the lavatory wall housing and install the screws (Ref. AMM TASK 52-51-12-400-001).
5 Put the cover profile on the lavatory wall and install the screws (Ref. AMM TASK 52-51-12-400-001).
(3) Make sure that the remaining electrical-release strikes operate satisfactorily (Ref. AMM TASK 52-51-00-710-001).
(4) Put a warning notice on the door post to tell persons that the applicable electrical release strike is deactivated or removed.

Subtask 52-51-00-865-086-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 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

5. Close-up
Subtask 52-51-00-860-095-A

A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Make an entry in the aircraft technical log that the electrical release strike is deactivated.

[Rev.10 from 2021] 2026.04.02 06:28:22 UTC