TM 1-1520-238-T-4
4–153
4–61.
PILOT POWER QUADRANT PANEL EDGE–LIGHT – DOES NOT LIGHT
4–61
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68F
Aircraft Electrician
One person to assist
References:
TM 1-1520-238-T-6
TM 1-1520-238-23
Equipment Conditions:
Ref
Condition
TM 1-1520-238-23
Pilot FUEL panel –
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.
1. On pilot circuit breaker panel, close LT PRI
circuit breaker. On pilot EXT LT/INTR LT panel,
set L CSL to BRT. Check for 5 VDC between
P173–X and ground.
Is voltage present?
YES
Replace pilot power quadrant
panel (TM 1-1520-238-23).
NO
Go to step 2.
2. Check for open between (A326)TB1–28–B and
P173–X.
Does open exist?
YES
Repair open wire.
Go to paragraph 4–12.
NO
Refer to TM 1-1520-238-T-6 to
troubleshoot pilot edge–lights.
END OF TASK
