TM 55-1510-222-MTF
C24.
Landing gear warning horn inoperative when
landing gear control switch is in the up position
and weight of aircraft is on struts, but operates
when a power lever is closed and the gear is re-
tracted.
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.
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 inop-
erative.
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.
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