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Accident
Last updated: 17 October 2017
Estado:Final
Fecha:domingo 21 febrero 1982
Hora:15:33
Tipo:Silhouette image of generic DHC6 model; specific model in this crash may look slightly different
de Havilland Canada DHC-6 Twin Otter 100
Operador:Pilgrim Airlines
Registración: N127PM
Numéro de série: 105
Año de Construcción: 1968
Horas Totales de la Célula:27015
Motores: 2 Pratt & Whitney Canada PT6A-27
Tripulación:Fatalidades: 0 / Ocupantes: 2
Pasajeros:Fatalidades: 1 / Ocupantes: 10
Total:Fatalidades: 1 / Ocupantes: 12
Daños en la Aeronave: Destruido
Consecuencias: Written off (damaged beyond repair)
Ubicación:Scituate Reservoir, RI (   Estados Unidos de América)
Fase: En ruta (ENR)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Groton-New London Airport, CT (GON/KGON), Estados Unidos de América
Aeropuerto de Llegada:Boston-Logan International Airport, MA (BOS/KBOS), Estados Unidos de América
Número de Vuelo: 458
Descripción:
At 4000 feet light icing on the windshield was noted, and the de-icing system was activated. After two cycles of de-icing, alcohol was smelled in the cockpit, and smoke was coming up from the control yoke. An emergency landing was attempted at Providence, RI but smoke and flames forced the crew to land on 10-12 inch thick ice on a reservoir. By then, heavy black smoke poured in the cockpit and fire was seen. Upon landing, the left main gear collapsed and the right wing was sheared off.

Probable Cause:

PROBABLE CAUSE: "The deficient design of the isopropyl alcohol windshield washer/de-icer system and the inadequate maintenance of the system which resulted in an in-flight fire. The ignition source of the fire was not determined."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Accident number: NTSB/AAR-82-07
Download report: Final report

Fuentes:
» NTSB-AAR-82-07


Subsiguiente / acciones de seguridad

NTSB issued 6 Safety Recommendations

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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 Groton-New London Airport, CT to Boston-Logan International Airport, MA as the crow flies is 143 km (89 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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