Narrative:
Impacted mountain ridge at 6250 feet during a VFR attempt to land; ridge obscured by broken clouds. Field elevation 5315 feet; airport located in a mountain valley, just over a mile wide
PROBABLE CAUSE: "The flightcrew's failure to adhere to the recommended visual arrival procedures for the Sun Valley Airport and its failure to execute timely terrain avoidance actions The reasons for the flightcrew's failures could not be established conclusively. Contributing to the accident were meteorological conditions and the obscuration of terrain features and landmarks by snow that made navigation by visual references and terrain avoidance difficult."
| Status: | Accident investigation report completed and information captured |
| Date: | Monday 3 January 1983 |
| Time: | 09:05 |
| Type: |  Canadair CL-600-1A11 Challenger 600 |
| Operator: | A.E. Stanley Manufacturing Co. |
| Registration: | N805C |
| MSN: | 1037 |
| First flight: | 1982 |
| Total airframe hrs: | 203 |
| Cycles: | 86 |
| Engines: | 2 Lycoming ALF502L-2 |
| Crew: | Fatalities: 2 / Occupants: 2 |
| Passengers: | Fatalities: 0 / Occupants: 0 |
| Total: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Aircraft fate: | Written off (damaged beyond repair) |
| Location: | 4 km (2.5 mls) N of Hailey-Sun Valley Airport, ID (SUN) ( United States of America)
|
| Crash site elevation: | 1905 m (6250 feet) amsl |
| Phase: | Approach (APR) |
| Nature: | Executive |
| Departure airport: | Decatur Airport, IL (DEC/KDEC), United States of America |
| Hailey-Sun Valley Airport, ID (SUN/KSUN), United States of America |
Impacted mountain ridge at 6250 feet during a VFR attempt to land; ridge obscured by broken clouds. Field elevation 5315 feet; airport located in a mountain valley, just over a mile wide
Probable Cause:
PROBABLE CAUSE: "The flightcrew's failure to adhere to the recommended visual arrival procedures for the Sun Valley Airport and its failure to execute timely terrain avoidance actions The reasons for the flightcrew's failures could not be established conclusively. Contributing to the accident were meteorological conditions and the obscuration of terrain features and landmarks by snow that made navigation by visual references and terrain avoidance difficult."
Accident investigation:
 |
|
Classification:
Controlled Flight Into Terrain (CFIT) - Mountain
Follow-up / safety actions
NTSB issued 1 Safety Recommendation
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Photos
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Decatur Airport, IL to Hailey-Sun Valley Airport, ID as the crow flies is 2128 km (1330 miles).
Accident location: Approximate; accuracy within a few kilometers.
Distance from Decatur Airport, IL to Hailey-Sun Valley Airport, ID as the crow flies is 2128 km (1330 miles).
Accident location: Approximate; accuracy within a few kilometers.
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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