Removal of the Emergency Overwing Lights

TASK 33-51-15-000-001-A
Removal of the Emergency Overwing Lights

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

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

WARNING: THIS PROCEDURE IS NOT PERMITTED WHILST OVERWING REFUELLING.

NOTE: The procedure is the same for all emergency overwing lights 60 WL (61WL, 62WL, 63WL).

FIN: 60WL ** ON A/C NOT FOR ALL
FIN: 61WL ** ON A/C NOT FOR ALL
FIN: 62WL ** ON A/C NOT FOR ALL
FIN: 63WL ** 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	1	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Referenced Information

REFERENCE	DESIGNATION
Emergency Overwing Light 60WL/61WL/62WL/63WL

3. Job Set-up
Subtask 33-51-15-865-050-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
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	2WL	H04
49VU	LIGHTING/EMER LT/CABIN	1WL	H03
** ON A/C NOT FOR ALL
122VU	LIGHTING/CABIN/EMER/LT	3WL	V07

Subtask 33-51-15-860-050-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) On the overhead panel 25VU, make sure that the EMER EXIT LT switch 4WL is in the OFF position.
(2) On the Forward Attendant Panel (FAP) 120RH, make sure that the LIGHT EMER pushbutton switch and its integral light are off.

Subtask 33-51-15-860-050-E ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) On the overhead panel 25VU, make sure that the EMER EXIT LT switch 4WL is in the OFF position.
(2) On the Flight Attendant Panel (FAP) 120RH, make sure that the EMER button and its light are off.

Subtask 33-51-15-010-051-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position:
(a) FOR [60WL] (LIGHT-FWD EMER, OVERWING), [62WL] (LIGHT-AFT EMER, OVERWING)
at Zone 844,
(b) FOR [61WL] (LIGHT-FWD EMER, OVERWING), [63WL] (LIGHT-AFT EMER, OVERWING)
at Zone 834.
(2) Put the wing mats in position at the respective emergency overwing light.

4. Procedure
Subtask 33-51-15-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Emergency Overwing Light
(1) Removal of the Emergency Overwing-Light Assembly
(a) Remove the screws (2).
(b) Remove the emergency overwing-light assembly sufficiently to get access to the electrical connector (1).

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.

(c) Hold the emergency overwing-light assembly and disconnect the electrical connector (1).
(d) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(e) Remove the emergency overwing-light assembly.
(2) Removal of the Bulb(s) of the Emergency Overwing Light
(a) Remove the screws (3).
(b) Remove the lens (4) and the sealing (5) from the light housing (8).
(c) Remove the lens diffuser (6).
(d) Remove the bulb(s) (7).

[Rev.10 from 2021] 2026.04.01 00:57:25 UTC