Accident
Last updated: 23 April 2014
Estado:Final
Fecha:jueves 14 julio 1960
Hora:04:30
Tipo:Silhouette image of generic DC7 model; specific model in this crash may look slightly different
Douglas DC-7C
Operador:Northwest Orient Airlines
Registración: N292
Numéro de série: 45462/925
Año de Construcción: 1958
Horas Totales de la Célula:9233
Tripulación:Fatalidades: 0 / Ocupantes: 7
Pasajeros:Fatalidades: 1 / Ocupantes: 51
Total:Fatalidades: 1 / Ocupantes: 58
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:8 km (5 milles) NE de la costa de Polillo Island (   Filipinas) show on map
Fase: En ruta (ENR)
Naturaleza:Vuelo Internacional Programado
Aeropuerto de Salida:Okinawa (unknown airport), Japón
Aeropuerto de Llegada:Manila International Airport (MNL/RPLL), Filipinas
Número de Vuelo: 1-11
Descripción:
Flight 1-11 arrived at Okinawa at 16:25 following a flight from New York via Seattle, Anchorage Cold Bay and Tokyo. The flight departed Okinawa at 17:12 GMT for the last leg of the flight to Manila. Two hours after takeoff, at 03:15 local time, the no. 2 engine experienced a power loss, indicated by a drop in mean effective pressure and manifold pressure. Believing the difficulty was carburetor icing the crew tried to correct the problem. The problems persisted and the captain then noticed the oil-out temperature for no. 2 engine rising. Attempts to feather the no. 2 propeller failed and the flight was cleared to descend from FL180 to FL100. An emergency was declared at 03:40. While at 9000 feet it was attempted to actuate the firewall shutoff valve, depriving the engine of lubricant and thus to stop the (no. 2) engine rotation. The propeller then wrenched free of the engine and struck the fuselage, slashing a 15inch hole. There was a continuous fire warning from the no. 2 engine and a fire on the wing was reported to Manila at 04.20. A 3000 feet/min descent from 9000 feet was made. At 1000 feet descent rate was decreased to 100-200 feet/min and a ditching was carried out. Upon final contact with the water, the aft end of the fuselage broke free at the rear of the pressure bulkhead. At the same time the right wing as torn free and the engines separated. The wing floated for 3 hours, temporarily serving as a liferaft for several passengers. The remainder of the fuselage, sank some 8 or 10 minutes after impact. All occupants were rescued by US Coast Guard and US Navy aircraft 4-6 hours after the accident.

PROBABLE CAUSE: "The accident was due to the internal failure of No.2 engine, which resulted in oil contamination, loss of oil supply, subsequent loss of the No.2 propeller assembly, and fire in flight, which necessitated a ditching."

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