TM 55-1510-219-MTF
b.
Compensator immersed in water.
c.
Circuit out of calibration.
d.
Tank unit(s) out of circuit.
e.
Defective pins in connector on fuel probes and wing
harness used to connect fuel probes.
B7.
Fuel quantity gauge pegs down scale against stop.
a.
Defective probe.
b.
No power.
c.
Defective indicator.
d.
Defective pins on connectors on both gauge and probes.
e.
Nacelle probe body is making contact with metal braided
hose inside of nacelle tank.
f.
One or more tank units out of circuit (when fuel level low).
B8.
Fuel quantity indicator needle pegs up scale against stop.
a.
Indicator defective.
b.
Indicator out of calibration.
c.
Faulty tank unit.
d.
Water in fuel.
e.
Faulty wiring.
B9.
Fuel quantity sluggish.
a.
Defective connector.
b.
Defective wiring.
c.
Defective tank unit.
d.
Dirty fuel tanks.
e.
Contaminated fuel.
f.
Defective indicator.
3-5
