TM 55-1510-221-MTF
a.
Poor ground at landing gear control switch.
b.
Defective wiring between landing gear con-
trol switch and landing gear safety switch
C25. Landing gear warning horn inoperative when
power lever is closed and landing gear is up.
a.
Defective or out of adjustment power lever
switch
b.
Defective wiring between power lever
switches and pedestal terminal board, and
between landing gear control switch and
stall/landing gear warning horn module.
c.
Defective "Q" switch
d.
Defective speaker
C26. Landing gear warning horn fails to shut off when landing
gear is extended.
a.
Defective or out of adjustment down-lock
switches
C27. 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
C28. Landing gear down position indicator light inoperative.
a.
Defective or out of adjustment down lock
switch.
C29. Landing gear handle light is illuminated with
gear up and locked.
a.
Defective or out of adjustment up-lock
switch
C30.Landing gear handle light inoperative.
a.
Defective or out of adjustment up-lock or
down-lock switch.
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