Accident Details
The pilot was departing a remote airport to begin a VFR cargo flight. The departure path took the airplane over ice-covered terrain. The airport was considered below basic VFR conditions with light snow and fog, and the visual conditions in the area were considered 'flat' with visibility from 2 to 3 miles. The pilot received a special VFR clearance out of the control zone from a flight service station specialist.
Witness Observations
After departure, witnesses observed the airplane climb to an estimated 500 feet above the ground and turn to the right. Shortly thereafter, the airplane banked to the right about 90 degrees, then descended to the ground in a wing and nose low attitude.
Investigation Findings
A postaccident inspection of the airframe and engine did not reveal any mechanical malfunction.
Probable Cause
The probable cause was determined to be a failure of the pilot to maintain sufficient altitude/clearance above terrain, after becoming spatially disoriented, while maneuvering after takeoff. Factors relating to the accident were: fog, snow, partial obscuration, 'flat' conditions of light, and the lack of a distinct horizon over ice/snow covered terrain.