Amateur-built ra N49KK accident near Jordan Valley, Oregon

Probable cause

The pilot's failure to maintain an adequate airspeed while maneuvering that led to a stall/mush.

NTSB analysis

Witnesses located adjacent to the accident site reported observing the airplane overhead at a low altitude as it entered a steep right turn. As the turn progressed, the witnesses watched the airplane until it descended below a hill and impacted rocky terrain. One witness added that prior to the sound of impact, he heard the "engine speed up." Another witness stated that as the airplane was turning, its wings appeared to be almost perpendicular to the ground. Examination of the airframe and engine revealed structural damage to the fuselage and right wing. No anomalies were noted with the engine or airframe that would have precluded normal operation.

Text from the NTSB. Open the NTSB docket for SEA08LA138 for the full record.