Dec 18, 2002
Accident
Substantial Loon Lake, WA
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 135
Probable Cause
The pilot's inadvertent flight into instrument meteorological conditions (IMC) while in cruise flight, and an excessive descent rate. Factors include falling snow, whiteout conditions and dark night conditions.
NTSB SEA03LA019