Enumclaw, WA, USA
N968A
Piper PA-22
While in cruise flight in ambient weather conditions under which the aircraft's carburetor was susceptible to icing (temperature 10 degres C, and dew point 7 degrees C), the engine began to lose power. Although the pilot switched fuel tanks, she did not apply carburetor heat, and eventually all engine power was lost. The pilot attempted a forced landing in a nearby field, but during the landing roll the aircraft encountered soft, muddy terrain, whereupon it rocked from side to side with sufficient amplitude to result in the wingtips coming in contact with the terrain. A post-accident inspection of the engine found no anomalies that would have kept the engine from running under non-icing conditions.
While in cruise flight in ambient weather conditions under which the aircraft's carburetor was susceptible to icing (temperature 10 degrees C, and dew point 7 degrees C), the engine began to lose power. Although the pilot switched fuel tanks, she did not apply carburetor heat, and eventually all engine power was lost. The pilot attempted a forced landing in a nearby field, but during the landing roll the aircraft encountered soft, muddy terrain, whereupon it rocked from side to side with sufficient amplitude to result in the wingtips coming in contact with the terrain. A post-accident inspection of the engine found no anomalies that would have kept the engine from running under non-icing conditions.
The pilot's failure to apply carburetor heat during cruise flight. Factors include ambient weather conditions that were conducive to carburetor icing, and soft, muddy terrain at the location where the pilot attempted the power-off forced landing.
Source: NTSB Aviation Accident Database
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