Operational Test of the Anti-Collision Lighting

TASK 33-48-00-710-001-A
Operational Test of the Anti-Collision Lighting

WARNING: DO NOT LOOK DIRECTLY AT THE LIGHT FLASH DURING THE TEST. SUPPLY A COVER, OR SHIELD, TO GIVE PROTECTION FROM THE LIGHT FLASH TO PERSONS IN THE TEST AREA.

FIN: 6LV
FIN: 7LV

1. Reason for the Job
Make sure that the Beacon/Strobe Lights operate correctly.
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)

3. Job Set-up
Subtask 33-48-00-861-050-A

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

Subtask 33-48-00-865-050-A

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
122VU	LIGHTING/EXT LT/BEACON/UPPER	1LV	U06
122VU	LIGHTING/EXT LT/BEACON/LOWER	5LV	U03

4. Procedure

WARNING: DO NOT LOOK DIRECTLY AT THE LIGHT FLASH DURING THE TEST. SUPPLY A COVER, OR SHIELD, TO GIVE PROTECTION FROM THE LIGHT FLASH TO PERSONS IN THE TEST AREA.

Subtask 33-48-00-710-050-B

A. Test of the Anti-Collision/Strobe Lighting
(1) Do this test:

ACTION	RESULT
1.On the overhead panel 25VU:	On the upper and lower fuselage:
Put the switch BEACON 2LV in the ON position.	The upper beacon light 7LV and the lower beacon light 6LV come on. These lights flash at a rate of 55 +/- 5 flashes per minute.
2.On the overhead panel 25VU:	On the upper and lower fuselage:
Put the switch BEACON 2LV in the OFF position.	The upper beacon light 7LV and the lower beacon light 6LV go off.

5. Close-up
Subtask 33-48-00-862-050-A

A. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.01 04:12:47 UTC