TM 55-1510-220-MTF
b.
Defective components in overhead control panel.
c.
Defective power supply.
d.
Defective wiring.
C41.
Fuel crossfeed valve inoperative or FUEL PRESS annunciator light remains inoperative.
a.
Defective standby fuel pump.
b.
Defective crossfeed valve.
C42.
Standby fuel pump inoperative.
a.
Defective standby pump circuit breaker.
b.
Defective switch in fuel management panel.
c.
Defective wiring.
C43.
Pneumatic surface or antenna deice system inoperative.
a.
Defective surface deice module.
b.
Defective deice distributor valve.
c.
Defective plumbing.
d.
Defective boot.
C44.
Right and left FIRE PULL warning lights do not illuminate in any test position of fire protection
test switch.
a.
Tripped fire detector circuit breaker.
b.
Defective fire protection test switch.
c.
Defective wiring.
C45.
Engine fire detection system wholly or partially
a.
Defective fire detector.
b.
Defective fire protection test switch.
C46.
Fire detector circuit breaker trips.
a.
Short circuit in wiring or components.
C47.
Left FIRE PULL warning light illuminates in all test positions but right FIRE PULL warning light
does not.
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