TM 55-1510-221-MTF
b.
Defective landing gear control switch.
C31. Flaps fail to extend or retract.
a.
Tripped circuit breaker.
b.
Defective flap motor.
c.
Defective flap control switch.
d.
Defective mechanical component in actuator
system.
e.
Defective wiring.
C32. Flap position indicator inoperative.
a.
Tripped circuit breaker.
b.
Defective position indicator.
c.
Defective position transmitter.
d.
Defective wiring.
C33. Pilot tube heater fails to operate.
a.
Tripped circuit breaker.
b.
Defective heater
c.
Defective wiring
d.
Defective switch
C34. Stall warning system inoperative.
a.
Defective stall warning transducer.
b.
Defective stall warning computer
c.
Defective wiring
d.
Defective stall/landing gear warning horn
module
e.
Defective speaker.
C35. Stall warning horn sounds continuously.
a.
Defective stall warning transducer
b.
Defective stall warning test system
c.
Defective wiring.
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