SILERTON, TN, USA
N6176K
CESSNA 150M
THE STUDENT PLT WAS ON A VFR X-COUNTRY FLT. SHE RPRTD THAT AFTER LEVELING AT 2000', THE ENG BEGAN RUNNING ROUGH & THE RPM DROPPED FROM 2400 TO ABOUT 2000 RPM. THE ACFT WOULD NOT MAINT ALT. THE STUDENT SAID SHE APPLIED CARB HEAT WHEN THE ACFT WAS AT ABOUT 1300' & THE RPM WAS ABT 1700. SHE ELECTED TO LAND WHILE THE ENG STILL HAD PWR. HOWEVER, WHILE LANDING IN A PLOWED FIELD, THE ACFT NOSED OVER AS IT SLOWED DOWN. WHEN THE ACFT WAS EXAMINED AFTER THE ACDNT, NO PREIMPACT PART FAILURE OR MALFUNCTION WAS FOUND. THE TEMP & DEW POINT WERE 74 & 55 DEG, RESPECTIVELY. ACCORDING TO ICING PROBABILITY CHARTS, CONDS WERE CONDUCIVE TO CARB ICE.
Source: NTSB Aviation Accident Database
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