Descripción del Accidente ASN 21 JUL 1984 de Havilland Canada DHC-6 Twin Otter 300 N43SP - Tau Airport (TAV)
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Estado:Accident investigation report completed and information captured
Fecha:sábado 21 julio 1984
Hora:13:40 AST
Tipo:Silhouette image of generic DHC6 model; specific model in this crash may look slightly different
de Havilland Canada DHC-6 Twin Otter 300
Operador:South Pacific Island Airways - SPIA
Registración: N43SP
Numéro de série: 669
Año de Construcción: 1980
Motores: 2 Pratt & Whitney Canada PT6A-27
Tripulación:Fatalidades: 0 / Ocupantes: 3
Pasajeros:Fatalidades: 1 / Ocupantes: 11
Total:Fatalidades: 1 / Ocupantes: 14
Daños en la Aeronave: Anulado
Consecuencias: Written off (damaged beyond repair)
Ubicación:Tau Airport (TAV) (   Samoa Americana)
Fase: Aterrizaje (LDG)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Pago Pago International Airport (PPG/NSTU), Samoa Americana
Aeropuerto de Llegada:Tau Airport (TAV), Samoa Americana
Número de Vuelo: 513
Descripción:
While turning from base leg onto final approach the fight controls suddenly collapsed forward and the nose of the aircraft pitched up. The pilot tried to maintain control by using throttle and flap control. The Twin Otter then collided with the terminal building and a vehicle. It appeared that the elevator control cable was rusted and broken at Station 376 and the cable pulley in the area was also damaged. The cable hadn't been inspected for 725.9 hours, while inspection is required every 700 hours. The corrosion process was speeded up by the fact that the aircraft was operated in a high humidity and marine salt environment. The aircraft had also carried large amounts of salt pork and corned beef in the aft cargo compartment, directly above the corroded cable area.

Probable Cause:

PROBABLE CAUSE:
"Flight control system ,elevator control .. corroded
Flight control system ,elevator control .. failure, total"

Fuentes:
» NTSB


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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 Pago Pago International Airport to Tau Airport as the crow flies is 129 km (81 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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