Defective or out of adjustment down-lock switches.

TM 1-1510-223-MTF

C24.

Landing gear warning horn inoperative when LDG GEAR

CONTR 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 retracted.

Poor ground at landing gear control switch.

Defective wiring between LDG GEAR CONTR switch and

landing gear safety switch.

Defective stall/landing gear warning module.

Defective speaker.

C25.

Landing gear warning horn inoperative when POWER

lever is closed and landing gear is up.

Defective or out of adjustment POWER lever switch.

Defective wiring between POWER lever switches and

pedestal terminal board, and between LDG GEAR

CONTR switch and stall/landing gear warning horn

module.

Defective "Q" switch.

C26.

Landing gear warning horn fails to shut off when landing

gear is extended.

Defective or out of adjustment down-lock switches.

C27.

Landing GEAR DOWN

position indicator lights are

illuminated with landing gear retracted.

Defective or out of adjustment down lock switch.

Wrong connection in light test circuit.

Ground between light and down lock switch.

C28.

Landing GEAR

DOWN position

indicator

light

inoperative.

Defective or out of adjustment down lock switch.

C29.

Landing gear handle light is illuminated with gear up and

locked.

Defective or out of adjustment up-lock switch.

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