ASN Aircraft accident Curtiss C-46E-1-CS Commando NC59485 Cheyenne Airport, WY (CYS)
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Status:Accident investigation report completed and information captured
Date:Sunday 9 October 1949
Time:17:54
Type:Silhouette image of generic C46 model; specific model in this crash may look slightly different
Curtiss C-46E-1-CS Commando
Operator:Slick Airways
Registration: NC59485
MSN: 2939
First flight: 1945
Total airframe hrs:8585
Engines: 2 Pratt & Whitney R-2800-75
Crew:Fatalities: 2 / Occupants: 2
Passengers:Fatalities: 1 / Occupants: 1
Total:Fatalities: 3 / Occupants: 3
Aircraft damage: Damaged beyond repair
Location:4 km (2.5 mls) NW of Cheyenne Airport, WY (CYS) (   United States of America)
Phase: Approach (APR)
Nature:Cargo
Departure airport:Las Vegas-McCarran Field, NV (LAS/KLAS), United States of America
Destination airport:Denver (unknown airport), CO, United States of America
Flightnumber:11-8
Narrative:
Arriving near Denver, visibility and ceiling were below company minimums, so the aircraft was cleared for the revised alternate Rock Springs, with permission to land at Laramie. Near Laramie, the crew decided to continue on to Cheyenne which then had 3500 feet ceiling and lower broken clouds, visibility 20 miles. By the time the aircraft was over the Cheyenne range, the ceiling was 900 feet with sleet. The aircraft was cleared to descend from FL140 to FL80. Severe turbulence as then encountered, including severe icing. The Curtiss C-46 lost control on approach and crashed just 2,5 miles short of the airport.

Probable Cause:

PROBABLE CAUSE: "Loss of control of the aircraft during an instrument approach to Cheyenne, under conditions of heavy icing and severe turbulence."

Accident investigation:

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Investigating agency: CAB
Status: Investigation completed
Accident number: final report
Download report: Final report

Classification:
Turbulence
Loss of control

Sources:
» CAB File No. 1-0100


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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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