TM 1-1520-238-T-6
9–258
9–74.
LEFT RED ANTI-COLLISION LIGHT – DOES NOT FLASH
9–74
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer
One person to assist
References:
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Access provisions –
LW8 cover removed
WARNING
Turn off power before detaching or
attaching wires and connectors. High
current 28 VDC or 115 VAC is present.
Failure to do so could result in death
or serious injury.
Anti-collision lights are high intensity
strobe lights. Excessive viewing of
lights could cause temporary
blindness. If injury occurs, seek
medical aid.
1. Check for pulsating 200 VDC between P105-2
and ground. Check for 400 VDC between
P105-1 and ground.
Is voltage present?
YES
Go to step 4.
NO
Go to step 2.
2. Check for 200 VDC between J115-5 and ground.
Check for 400 VDC between J115-2 and ground.
Is voltage present?
YES
Repair open wire between:
P115-2 and P105-1,
P115-5 and P105-2.
Go to paragraph 9–70.
NO
Go to step 3.
3. Check for open between:
P103-1 and J115-2,
P103-2 and J115-5.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–70.
NO
Replace anti-collision light
power supply
(TM 1-1520-238-23).
4. Check for open between:
P105-3 and P103-3,
P105-5 and P103-5.
Does open exist?
YES
Repair open wire.
Go to paragraph 9–70.
NO
Replace left anti-collision light
(TM 1-1520-238-23).
END OF TASK
