ST. LOUIS, MO, USA
N6868D
CESSNA 421C
PILOT REPORTED, THE FLIGHT ENCOUNTERED ICING CONDITIONS NEAR ST. LOUIS AND THE PROPELLER DE-ICE SYSTEM WAS ACTIVATED. WHEN DE-ICE SYSTEM WAS TURNED ON, FLAMES SHOT OUT FROM THE LOWER RIGHT CORNER OF THE PILOT'S INSTUMENT PANEL WHERE THE DE-ICE AMMETER IS LOCATED. THE PILOT TURNED OFF THE PROPELLER DE-ICE SWITCH AND THE FLAMES STOPPED. THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. EXAMINATION OF THE PROPELLER DE-ICE AMMETER REVEALED THAT IT WAS SHORTED TO THE INSTUMENT PANEL. THE AMMETER HAD BEEN MOVED TO THIS LOCATION ON THE INSTRUMENT PANEL PRIOR TO THE FLIGHT.
Source: NTSB Aviation Accident Database
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