Jun 17, 1998
Accident
Destroyed HELENA, MT
Injuries1 fatal
Phase of Flight-
ConditionsIMC
OperationFAR 135
Probable Cause
The pilot's failure to maintain the correct altitude while turning inbound during a procedure turn to the ILS final approach course. Factors include hilly/mountainous terrain and clouds in the area where the course reversal was performed.
NTSB SEA98FA100