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Last updated: 15 November 2019
Status:Definitief
Datum:donderdag 6 oktober 1955
Tijd:07:26 MST
Type:Silhouette image of generic DC4 model; specific model in this crash may look slightly different
Douglas DC-4
Luchtvaartmaatschappij:United Airlines
Registratie: N30062
Constructienummer: 18389
Bouwjaar: 1944
Aantal vlieguren:28755
Motoren: 4 Pratt & Whitney R-2000-11
Bemanning:slachtoffers: 3 / inzittenden: 3
Passagiers:slachtoffers: 63 / inzittenden: 63
Totaal:slachtoffers: 66 / inzittenden: 66
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:Medicine Bow Peak, WY (   Verenigde Staten)
Fase: Kruisvlucht (ENR)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Denver-Stapleton International Airport, CO (DEN/KDEN), Verenigde Staten
Vliegveld van aankomst:Salt Lake City International Airport, UT (SLC/KSLC), Verenigde Staten
Vluchtnummer:UA409
Beschrijving:
A Douglas DC-4, N30062, was destroyed when it crashed into Medicine Bow Peak, WY. All 63 passengers and three crew members were killed.
United Air Lines Flight 409 originated at New York, NY on October 5, 1955, destination San Francisco, CA, with intermediate stops including Chicago, IL; Denver, CO; and Salt Lake City, UT. The trip to Denver was routine.
At Denver the flight was dispatched to Salt Lake City via airways V-4, V-118, V-6, and V-32 to cruise at 10,000 feet, and to fly in accordance with Visual Flight Rules (VFR). The estimated time en route was two hours and 33 minutes. The only obligatory reporting point along the route was Rook Springs, WY.
The flight departed Denver at 06:33. Flight 409 reported its time off to the company and this was the last known radio contact with the flight.
When the flight failed to report at Rock Springs at 08:11, its estimated reporting time, repeated efforts were made to establish radio contact with it. These were unsuccessful and the company then declared an emergency. A widespread search was immediately initiated. At approximately 11:40 the same day the wreckage was sighted near Medicine Bow Peak, 33 miles west of Laramie, WY. The Laramie weather at 07:28 was: Scattered clouds, 5,500 feet; visibility 40 miles; wind west-northwest 13 knots; snow showers of unknown intensity over the mountains.
The aircraft struck the almost vertical rock cliff of the east slope of Medicine Bow Peak (elevation 12,005 feet) located in the Medicine Bow Mountains. The crash occurred at an elevation of 11,570 feet, 60 feet below the top of that portion of the mountain directly above it.
The accident site was 20 miles west off course.

Probable Cause:

PROBABLE CAUSE: "The action of the pilot in deviating from the planned route for reasons unknown."

Bronnen:
» ICAO Accident Digest No.8, Circular 54-AN/49 (16-19)


Foto's

photo of Douglas-DC-4-N30062
accident date: 06-10-1955
type: Douglas DC-4
registration: N30062
photo of Douglas-DC-4-N30062
accident date: 06-10-1955
type: Douglas DC-4
registration: N30062
photo of Douglas-DC-4-N30062
accident date: 06-10-1955
type: Douglas DC-4
registration: N30062
photo of Douglas-DC-4-N30062
accident date: 06-10-1955
type: Douglas DC-4
registration: N30062
photo of Douglas-DC-4-N30062
accident date: 06-10-1955
type: Douglas DC-4
registration: N30062
photo of Douglas-DC-4-N30062
accident date: 06-10-1955
type: Douglas DC-4
registration: N30062
photo of Douglas-DC-4-N30062
accident date: 06-10-1955
type: Douglas DC-4
registration: N30062
 

Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Denver-Stapleton International Airport, CO en Salt Lake City International Airport, UT bedraagt 608 km (380 miles).
Accident location: Exact; deduced from official accident report.

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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Douglas DC-4

  • 1242 built
  • 182e ongeval
  • 101e dodelijk ongeval
  • The zwaarste ongeval (toen het plaatsvond)
  • 7e zwaarste ongeval (op dit moment)
» safety profile

 Verenigde Staten
  • 2e zwaarste ongeval (toen het plaatsvond)
  • 43e zwaarste ongeval (op dit moment)
» safety profile