Accident Douglas C-47A-20-DK (DC-3) NC38942,
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Date:Thursday 17 October 1946
Time:00:57
Type:Silhouette image of generic DC3 model; specific model in this crash may look slightly different    
Douglas C-47A-20-DK (DC-3)
Owner/operator:National Air Transport Service
Registration: NC38942
MSN: 12971
Year of manufacture:1944
Total airframe hrs:1861 hours
Engine model:Pratt & Whitney R-1830-92
Fatalities:Fatalities: 13 / Occupants: 13
Aircraft damage: Destroyed, written off
Category:Accident
Location:Laramie, WY -   United States of America
Phase: Approach
Nature:Passenger - Non-Scheduled/charter/Air Taxi
Departure airport:Oakland Municipal Airport, CA (OAK/KOAK)
Destination airport:Cheyenne Airport, WY (CYS/KCYS)
Investigating agency: CAB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
NATS C-47 registered NC38942 departed Oakland Municipal Airport at 18:42 for a flight to Newark via Cheyenne. Oakland Airway Traffic Control Center authorized instrument flight via Airway Green 3 at an altitude of 11,000 feet to Salt Lake City and 13,000 feet to Cheyenne. At 21:54 Salt Lake ATC instructed the crew to cruise to Cheyenne Airport at 15,000 feet. At that time the weather at Cheyenne was being reported as: ceiling 100 feet, visibility 1/4 mile. By 22:30 the weather at Cheyenne had worsened to a reported zero ceiling and zero visibility. Prior to reaching Laramie the aircraft was cleared from 15,000 feet to 14,000 feet and at 00:05 the flight reported over Laramie. Weather at Laramie was reported ceiling indefinite, 400 feet overcast; visibility 20 miles; light rain. The captain decided to divert to Laramie and he was cleared for an instrument approach. At 00:40 the crew reported outbound on the northwest approach leg preparing for the final instrument approach. By that time visibility had dropped to 2 miles in light snow. Five minutes later the plane passed over the airport at a low altitude. A couple of minutes later the airplane's left wing tip struck the ground while the aircraft was in a left bank of at least 70 degrees, and while dragging along the ground for a distance of approximately 75 feet, the aircraft crashed and disintegrated.

PROBABLE CAUSE: "The action of the pilot in maneuvering the aircraft at a dangerously low altitude under extremely adverse weather conditions in an attempt to land. A contributing factor was the negligence of the pilot in planning a flight into an area in which adverse weather conditions were forecast without making adequate provisions for a suitable alternate airport."

Accident investigation:
cover
  
Investigating agency: CAB
Report number: final report
Status: Investigation completed
Duration:
Download report: Final report

Sources:

CAB File No. 6966-46

Revision history:

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