Palmer, AK, USA
N1380A
PIPER PA-18
The pilot reported that, while enroute, the airplane encountered carburetor icing, and he made a precautionary landing on an off-airport snow-covered airstrip. During the landing, the airplane nosed over and came to rest inverted. The airplane sustained substantial damage to the empennage. The pilot reported no preimpact mechanical failures or malfunctions with the airplane that would have precluded normal operation.
The pilot’s failure to effectively use carburetor heat in conditions conducive to the formation of carburetor ice, which resulted in a partial loss of engine power, off-airport landing, and nose over.
Source: NTSB Aviation Accident Database
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