Installation of the MLG Dome Light (HELLA)

TASK 33-37-11-400-001-A
Installation of the MLG Dome Light (HELLA)

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.

NOTE: The procedure is the same for all MLG dome lights (HELLA).

FIN: 10LL ** ON A/C NOT FOR ALL
FIN: 7LL ** ON A/C NOT FOR ALL
FIN: 8LL ** ON A/C NOT FOR ALL
FIN: 9LL ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [10LL] (MAINTENANCE LIGHT)
196BB
FOR [9LL] (MAINTENANCE LIGHT)
195BB

B. Referenced Information

REFERENCE	DESIGNATION
TASK 33-37-00-710-001-A	Operational Test of the Wheel Well Lighting
MLG Dome Light ** ON A/C NOT FOR ALL
MLG Dome Light ** ON A/C NOT FOR ALL
FOR [7LL] (MAINTENANCE LIGHT)
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
FOR [8LL] (MAINTENANCE LIGHT)
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access

3. Job Set-up
Subtask 33-37-11-865-051-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
122VU	LIGHTING/WHL WELL/LTG/DOME	2LL	X08

4. Procedure
Subtask 33-37-11-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the MLG Dome Light.
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Remove the CAP-BLANKING from each electrical connector and receptacle.
(4) Support the MLG dome light (1) and install the electrical connectors (6) with the washers (5) and the nuts (4).
(5) Install the MLG dome light (1) with the washers (3) and the screws (2).

Subtask 33-37-11-865-052-A ** ON A/C NOT FOR ALL

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	LIGHTING/WHL WELL/LTG/DOME	2LL	X08

Subtask 33-37-11-710-050-A ** ON A/C NOT FOR ALL

C. Do the operational test of the wheel well lights (Ref. AMM TASK 33-37-00-710-001).

5. Close-up
Subtask 33-37-11-410-050-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Close the applicable access door/panel:
(a) FOR [7LL] (MAINTENANCE LIGHT)
Close the left MLG door 734 (Ref. AMM TASK 32-12-00-410-001).
(b) FOR [8LL] (MAINTENANCE LIGHT)
Close the right MLG door 744 (Ref. AMM TASK 32-12-00-410-001).
(c) FOR [9LL] (MAINTENANCE LIGHT)
Close the access panel 195BB.
(d) FOR [10LL] (MAINTENANCE LIGHT)
Close the access panel 196BB.

Subtask 33-37-11-410-050-B ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Close the applicable access door:
(a) FOR [7LL] (MAINTENANCE LIGHT)
Close the left MLG door 734 (Ref. AMM TASK 32-12-00-410-001).
(b) FOR [8LL] (MAINTENANCE LIGHT)
Close the right MLG door 744 (Ref. AMM TASK 32-12-00-410-001).

[Rev.10 from 2021] 2026.04.01 00:54:41 UTC