CLARION, IA, USA
N22997
CESSNA 150
DURING A PERSONAL CROSS COUNTRY FLIGHT, THE PILOT SAID THE ENGINE LOST POWER. AN EMERGENCY LANDING WAS ATTEMPTED ON A RURAL GRAVEL ROAD, AND DURING THE ROLL-OUT, A ROAD SIGN WAS STRUCK CAUSING SUBSTANTIAL DAMAGE TO THE ACFT. SUBSEQUENT INVESTIGATION REVEALED NO MECHANICAL MALFUNCTION, LACK OF FUEL, OR FUEL CONTAMINATION. METEOROLOGICAL CONDITIONS WERE FAVORABLE FOR CARBURETOR ICING ACCORDING TO THE 'ICING PROBABILITY CHARTS.' TEMPERATURE WAS 36 DEGS F AND DEWPOINT WAS 25 DEGS F.
FAILURE OF THE PILOT TO PROPERLY USE THE CARBURETOR HEAT DURING ICING CONDITIONS RESULTING IN CARBURETOR ICE FORMATION AND SUBSEQUENT LOSS OF ENGINE POWER.
Source: NTSB Aviation Accident Database
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