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Accident
Last updated: 11 December 2017
Status:
Datum:Freitag 28 Oktober 1960
Zeit:11:39
Flugzeugtyp:Silhouette image of generic DC4 model; specific model in this crash may look slightly different
Douglas C-54A-10-DC (DC-4)
Fluggesellschaft:Northwest Orient Airlines
Kennzeichen: N48762
Werknummer: 10320
Baujahr: 1944
Besatzung:Todesopfer: 4 / Insassen: 4
Fluggäste:Todesopfer: 8 / Insassen: 8
Gesamt:Todesopfer: 12 / Insassen: 12
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:32 km (20 Meilen) W of Missoula, MT (   USA)
Flugphase: Während des Fluges (ENR)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Spokane International Airport, WA (GEG/KGEG), USA
Flug nach:Missoula Airport, MT (MSO/KMSO), USA
Flugnummer: 104
Unfallbericht:
The aircraft, on a flight from Spokane, was seen flying in and along the Clark Fork Valley. The DC-4 started to descend deeper into the valley; visibility became worse due to light snow showers and the tops of the mountains surrounding the valley were obscured by the overcast. The plane entered a steep left banking turn and the nose was raised in an apparent attempt to turn and climb out through an intersecting valley. The aircraft continued to sink, rolled left and crashed inverted.

Probable Cause:

PROBABLE CAUSE: "The failure of the pilot to continue in accordance with his IFR flight plan by attempting a VFR approach during instrument weather conditions."



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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 Spokane International Airport, WA to Missoula Airport, MT as the crow flies is 269 km (168 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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