Jul 28, 2006
Accident
Substantial Independence, CA
Injuries1 minor
Phase of Flight-
ConditionsVMC
OperationFAR 091
Probable Cause
the pilot's inadequate preflight and in-flight planning regarding the selection of the altitude and route of flight, which resulted in a collision with terrain in a box canyon after encountering mountain wave.
NTSB LAX06LA249