NTSB Identification: DEN82FA016
Nonscheduled 14 CFR Part 135: Air Taxi & Commuter
Accident occurred Thursday, January 07, 1982 in HELENA, MT
Probable Cause Approval Date: 01/07/1983
Aircraft: CESSNA 210, registration: N9763X
Injuries: 2 Fatal.
NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.
THE AIRCRAFT CRASHED INTO A MOUNTAIN AT THE 9300 FOOT LEVEL. THE PILOT WAS ON COURSE FOR HIS DESTINATION. THE MINIMUM OBSTACLE CLEARANCE ALTITUDE FOR HIS LOCATION WAS 10,800 FEET. WEATHER WAS NOT A PROBLEM BUT THE ACCIDENT DID OCCUR DURING HOURS OF DARKNESS. THE AIRCRAFT WAS IN LEVEL CRUISE WHEN THE ACCIDENT HAPPENED.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:PROPER ALTITUDE..NOT MAINTAINED..PILOT IN COMMAND
TERRAIN CONDITION..SNOW COVERED
TERRAIN CONDITION..HIGH TERRAIN
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