Jul 12, 1992
Accident
Substantial EPHRATA, WA
InjuriesNone
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
INADEQUATE IN-FLIGHT PLANNING/DECISION. FACTORS TO THE ACCIDENT WERE: NO THERMAL LIFT AND ROUGH/UNEVEN TERRAIN.
NTSB SEA92LA151