TM 1-1510-225-MTF
C27.
C28.
C29.
C30.
C31.
C32.
Landing GEAR DOWN position indicator lights
are illuminated with landing gear retracted.
a. Defective or out of adjustment down lock switch.
b. Wrong connection in light test circuit.
c. Ground between light and down lock switch.
Landing GEAR DOWN position indicator light
inoperative.
a. Defective light bulb.
b. Defective or out of adjustment down lock switch.
Landing gear handle light is illuminated with gear
up and locked.
a. Defective or out of adjustment up-lock switch.
Landing gear handle light inoperative.
a. Defective or out of adjustment up-lock or down-
lock switch.
b. Defective landing gear control switch.
c. Defective bulbs in handle.
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 sys-
tem.
e. Defective wiring.
f. Defective split flap switch.
g. Split flap condition.
Flap position indicator Inoperative.
a. Tripped circuit breaker.
b. Defective position indicator.
c. Defective position transmitter.
d. Defective wiring.
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