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Criminal Occurrence
Last updated: 19 October 2017
Estado:
Fecha:martes 1 noviembre 1955
Hora:19:03 MST
Tipo:Silhouette image of generic DC6 model; specific model in this crash may look slightly different
Douglas DC-6B
Operador:United Airlines
Registración: N37559
Numéro de série: 43538/224
Año de Construcción: 1952
Motores: 4 Pratt & Whitney R-2800
Tripulación:Fatalidades: 5 / Ocupantes: 5
Pasajeros:Fatalidades: 39 / Ocupantes: 39
Total:Fatalidades: 44 / Ocupantes: 44
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:Longmont, CO (   Estados Unidos de América)
Fase: En ruta (ENR)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Denver-Stapleton International Airport, CO (DEN/KDEN), Estados Unidos de América
Aeropuerto de Llegada:Portland International Airport, OR (PDX/KPDX), Estados Unidos de América
Número de Vuelo:UA629
Descripción:
Crashed following the in-flight detonation of a bomb.

On November 14, 1955, agents of the Federal Bureau of Investigation (FBI) took into custody John G. Graham, the son of one of the passengers. Thereafter, he was indicted for acts leading to the destruction of the aircraft by means of a bomb explosion.
Graham, who held a grudge against his mother as the result of an unhappy childhood, was the beneficiary of both her life insurance policies and her will. He wrapped dynamite sticks as a Christmas present.

Probable Cause:

PROBABLE CAUSE: "The disintegrating force of a dynamite bomb explosion which occurred in the no. 4 baggage compartment."

Fuentes:
» ICAO Accident Digest Circular 50-AN/45 (201-203)


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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 Denver-Stapleton International Airport, CO to Portland International Airport, OR as the crow flies is 1570 km (981 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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Douglas DC-6

  • 704 built
  • 26th loss
  • 20th accidente fatal
  • 8th worst accident (a la hora)
  • 21st worst accident (actualmente)
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 Estados Unidos de América
  • 13th worst accident (a la hora)
  • 70th worst accident (actualmente)
» safety profile