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Accident
Last updated: 24 October 2017
Estado:Final
Fecha:martes 25 septiembre 2001
Hora:16:09
Tipo:Silhouette image of generic DC6 model; specific model in this crash may look slightly different
Douglas DC-6BF
Operador:Northern Air Cargo
Registración: N867TA
Numéro de série: 45202/880
Año de Construcción: 1957
Horas Totales de la Célula:70754
Motores: 4 Pratt & Whitney R-2800-CB3
Tripulación:Fatalidades: 0 / Ocupantes: 3
Pasajeros:Fatalidades: 0 / Ocupantes: 0
Total:Fatalidades: 0 / Ocupantes: 3
Daños en la Aeronave: Considerable
Consecuencias: Written off (damaged beyond repair)
Ubicación:Deadhorse-Alpine Airstrip, AK (DQH) (   Estados Unidos de América)
Fase: Aterrizaje (LDG)
Naturaleza:Carga
Aeropuerto de Salida:Prudhoe Bay/Deadhorse Airport, AK (SCC/PASC), Estados Unidos de América
Aeropuerto de Llegada:Deadhorse-Alpine Airstrip, AK (DQH/PALP), Estados Unidos de América
Número de Vuelo: 690
Descripción:
Northern Air Cargo Flight 690 departed Deadhorse for a flight to Alpine airstrip at around 15:30. The purpose of the flight was to deliver about 20,000 pounds of oil drilling equipment to a remote oil production site. Light snow showers were present, with visibility reported at 4 miles. The captain stated that during final approach, as the airplane passed over the airstrip threshold, a higher than normal sink rate was encountered. He said that the initial touchdown was "firm", but was thought to be within acceptable tolerances. Just after touchdown, the left wing broke free from the airplane at the wing to fuselage attach point. The airplane veered to the left, continued off the left side of the 5,000 feet long by 75 feet runway, down an embankment, and came to rest in an area of wet, tundra-covered terrain. A postcrash fire ensued, heavily damaging the center section of the fuselage.

Probable Cause:

PROBABLE CAUSE: "The flightcrew's continued use of an unstabilized GPS approach. Factors associated with the accident were low ceilings, and the inadequate coordination between the crew."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 12 months
Accident number: ANC01LA146
Download report: Summary report

Fuentes:
» NTSB


Fotos

photo of Douglas DC-6BF N867TA
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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 Prudhoe Bay/Deadhorse Airport, AK to Deadhorse-Alpine Airstrip, AK as the crow flies is 94 km (59 miles).

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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