Primary finding
Probable cause
The pilot's failure to maintain sufficient airspeed. Factors contributing to the accident were the icing conditions encountered, and the windshield & airframe ice.
Investigator assessment
Analysis narrative
While en route the flight encountered light, then moderate icing conditions & diverted to marysville. After executing the ndb approach & breaking out at about 2000 ft agl, the pilot made two landing attempts with ice still on the windshield and airframe. After the second attempt, after entering downwind, the airplane stalled. During recovery the airplane struck a tree separating the outer 1/3 of the left wing.
Source record
Factual narrative
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