Incident Overview
The pilot and passenger departed into forecasted icing conditions. During the flight, the airplane encountered icing and accumulated rime ice. As a result, the pilot decided to divert to another airport.
Sequence of Events
While on final approach, the airplane encountered a wind pocket. According to the pilot, the passenger "failed his arms and pulled back on the yoke." This action led to an aerodynamic stall, and the airplane impacted the ground approximately 490 feet before the runway threshold.
Post-Accident Examination
An examination of the airplane revealed no pre-impact malfunctions. A police investigator who responded to the accident site reported that the airplane's wing was "slippery with ice."
Weather Information
Airman Meteorological Information (AIRMET) Zulu, valid for the area surrounding the accident site, called for occasional moderate rime to mixed icing in clouds and in precipitation between the freezing level and 11,000 feet. The freezing level in the vicinity was identified between the surface and 2,000 feet.