Removal of the Power Supply Unit of the Tail Cone Strobe-Light

TASK 33-48-39-000-001-A
Removal of the Power Supply Unit of the Tail Cone Strobe-Light

FIN: 18LV

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
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)
Power Supply Unit

3. Job Set-up
Subtask 33-48-39-861-050-A

A. Energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-861-002).

Subtask 33-48-39-865-053-A

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
122VU	LIGHTING/WING/STROBE	10LV	V05

Subtask 33-48-39-010-050-A

C. Get Access
(1) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the access door 314AR at Zone 310.
(2) Be careful not to step on a closed access door.
(3) Open access door 314AR and safety it in the open position.
(4) Set the light switch to on.

4. Procedure
Subtask 33-48-39-020-050-A

A. Removal of the Power Supply Unit (18LV)
(1) Disconnect the electrical connectors (4) and (5).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove the screws (2) and the washers (3).
(4) Remove the power supply unit (1).

[Rev.10 from 2021] 2026.04.01 00:56:48 UTC