TM 1-1520-238-T-7
10–139
10–43. FUEL BST CIRCUIT BREAKER – DOES NOT STAY CLOSED WITH BOOST
10–43
PUMP ON
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
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. Detach P444. Check for short between P18-96
and ground.
Does short exist?
YES
Repair shorted wire between
P18-96 and (A402)J31-B17.
Go to paragraph 10–17.
NO
Go to step 2.
2. Detach S67 SP2. Check for short between
P444-B17 and ground.
Does short exist?
YES
Repair shorted wire between
P444-B17 and S67 SP2.
Go to paragraph 10–17.
NO
Replace boost pump pressure
switch (S67)
(TM 1-1520-238-23).
END OF TASK
