Installation of the Auxiliary/Mirror Lavatory Light

TASK 33-51-14-400-006-A
Installation of the Auxiliary/Mirror Lavatory Light

WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. 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 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
Removal/Installation of Auxiliary Light

3. Job Set-up
Subtask 33-51-14-865-074-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	79WL	H07
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	79WL	H05
** ON A/C NOT FOR ALL
2000VU	LAV FWD-OCCUPIED	1WJ	F01
** ON A/C NOT FOR ALL
2000VU	LAV FWD & MID-OCCUPIED	1WJ	F01
** ON A/C NOT FOR ALL
2001VU	LAVATORY AFT-OCCUPIED	11WJ	B04

4. Procedure
Subtask 33-51-14-420-059-A ** ON A/C NOT FOR ALL

A. Install the Auxiliary Light
(1) Install the light unit (2):
(a) Remove the CAP-BLANKING from each electrical connector and receptacle.

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

CAUTION: REFER TO THE MATCH MARKS MADE DURING THE REMOVAL WHEN YOU CONNECT THE ELECTRICAL WIRES. INCORRECT CONNECTION OF THE WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(b) Connect the electrical connectors (3) to the light unit (2).
(c) Put the light unit (2) in position and install the screws (1).

Subtask 33-51-14-861-059-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 33-51-14-865-073-A ** ON A/C NOT FOR ALL

C. 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
49VU	LIGHTING/EMER LT/CABIN	79WL	H07
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	79WL	H05
** ON A/C NOT FOR ALL
2000VU	LAV FWD-OCCUPIED	1WJ	F01
** ON A/C NOT FOR ALL
2000VU	LAV FWD & MID-OCCUPIED	1WJ	F01
** ON A/C NOT FOR ALL
2001VU	LAVATORY AFT-OCCUPIED	11WJ	B04

Subtask 33-51-14-710-060-A ** ON A/C NOT FOR ALL

D. Operational Test
(1) Make sure that the auxiliary lavatory light comes on when you close circuit breaker 79WL.
(2) Mirror lavatory light (if installed):
Make sure that the mirror lavatory light comes on when you close and lock the lavatory door.

5. Close-up
Subtask 33-51-14-860-053-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to the serviceable condition.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the lavatory door.
(3) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 00:57:24 UTC