Sep 10, 2002
Accident
Destroyed Doland, SD
Injuries4 fatal
Phase of Flight-
ConditionsVMC
OperationFAR 135
Probable Cause
Pilot spatial disorientation while flying in dark night conditions, resulting in a loss of aircraft control; and the company's inadequate remedial actions after identifying the pilot's night flying deficiency over areas without lighted references. A factor to the accident was the dark night conditions.
NTSB CHI02FA288