Sep 20, 2002
Accident
Substantial Bethel, AK
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
The instructor pilot's inadequate preflight by his failure to remove all frost from the wings prior to takeoff, which resulted in an inadvertent stall and in-flight collision with terrain.
NTSB ANC02LA123