Removal of the Seat/Wall-Mounted Emergency-Exit Location-Light

TASK 33-51-18-000-001-A
Removal of the Seat/Wall-Mounted Emergency-Exit Location-Light

WARNING: ISOLATE THE ELECTRICAL CIRCUITS FROM THE RELATED EQUIPMENT AND THE ENVIRONMENT.

CAUTION: DO NOT DISCONNECT THE CONNECTOR DURING OPERATION. ARCING CAN DAMAGE THE CONTACT PINS.

NOTE: The procedure is the same for all the seat/wall-mounted emergency-exit location-lights.

FIN: 361WL1 ** ON A/C NOT FOR ALL
FIN: 361WL3 ** ON A/C NOT FOR ALL
FIN: 361WL8 ** ON A/C NOT FOR ALL
FIN: 801WL ** ON A/C NOT FOR ALL

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
Seat/Wall-Mounted Emergency-Exit Location-Light

3. Job Set-up
Subtask 33-51-18-865-050-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	LIGHTING/EMER LT/CABIN	2WL	H06
49VU	LIGHTING/EMER LT/CABIN	1WL	H05

Subtask 33-51-18-860-050-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make sure that EMER EXIT LT switch 4WL on overhead panel 25VU is set to the OFF position.
(2) Make sure that the LIGHT EMER pushbutton switch and its integral light on forward attendant panel 120RH are off.

4. Procedure
Subtask 33-51-18-020-050-C ** ON A/C NOT FOR ALL

A. Removal of the Seat-Mounted Emergency-Exit Location-Light (AIRSIGNA-LED)
(1) Release the two attachment clips (1) and remove the light housing (2) from the related passenger seat or wall panel.
(2) Identify the electrical connectors (3) before you disconnect them.

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: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(3) Support the light housing (2) and disconnect the electrical connectors (3).
(4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(5) Remove the light housing (2).

Subtask 33-51-18-020-052-B ** ON A/C NOT FOR ALL

B. Removal of the Wall-Mounted Emergency-Exit Location-Light (Edge-Light)
(1) Remove the screws (4) and the washers (5).
(2) Carefully pull out the light housing (6) sufficiently to get access to the electrical connectors (7).
(3) Identify the electrical connectors (7) before you disconnect them.

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: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(4) Support the light housing (6) and disconnect the electrical connectors (7).
(5) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(6) Remove the light housing (6).

[Rev.9 from 2019] 2026.04.01 00:57:32 UTC