since 1940

Aircraft Alternator out-light inoperative

1. Lamp bulb burned out.
2. Shorted power diode or open resistor on alternator warning unit.
3. Faulty relay on warning unit circuit board.
4. Broken wire.

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Disclaimer: sacskyranch.com contains abundant information relating to aircraft maintenance. The information provided  is not intended to supercede or supplement the F.A.A. approved  maintenance and/or operator’s manuals. Those F.A.A. approved manuals must be utilized when performing maintenance and/or operating aircraft.