TM 1-1520-238-T-7
10–119
10–27. ENGINE 2 FUEL CROSSFEED/SHUTOFF VALVE INDICATOR – DOES NOT MOVE
10–27
TO NORMAL POSITION
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. Check for open between P179-A6 and P939-4.
Does open exist?
YES
Repair open wire between:
P939-4 and (A402)TB2-13-P,
(A402)TB2-13-N and P179-A6.
Go to paragraph 10–17.
NO
Go to step 2.
2. On pilot FUEL panel, check for open with
positive meter lead on terminal (A131)A1-32 and
negative meter lead on terminal (A131)A1-31.
Does open exist?
YES
Replace fuel logic component
board (A131)A1 on pilot FUEL
panel (TM 1-1520-238-23).
NO
Go to step 3.
3. Check for open between (A131):
A1-K3-8 and A1-K3-6.
Does open exist?
YES
Replace fuel logic board on pilot
FUEL panel
(TM 1-1520-238-23).
NO
Go to step 4.
4. Check for open between (A131):
S1-5 and S1-3.
Does open exist?
YES
Replace pilot FUEL panel
(TM 1-1520-238-23).
NO
Repair open wire between
(A131):
J2-A6 and A1-31,
A1-K3-6 and A1-32,
K3-8 and S1-3.
Go to paragraph 10–17.
END OF TASK
