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Last updated: 21 January 2021
Fecha:martes 12 marzo 1985
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:Seair Alaska Airlines
Registración: N540N
Numéro de série: 401
Año de Construcción: 1973
Horas Totales de la Célula:13652
Motores: 2 Pratt & Whitney Canada PT6A-27
Tripulación:Fatalidades: 0 / Ocupantes: 2
Pasajeros:Fatalidades: 0 / Ocupantes: 2
Total:Fatalidades: 0 / Ocupantes: 4
Daños en la Aeronave: Considerable
Consecuencias: Written off (damaged beyond repair)
Ubicación:Barter Island, AK (   Estados Unidos de América)
Fase: Aproximación (APR)
Naturaleza:Vuelo Doméstico No Programado
Aeropuerto de Salida:Prudhoe Bay Airport, AK (PUO), Estados Unidos de América
Aeropuerto de Llegada:Barter Island Airport, AK (BTI/PABA), Estados Unidos de América
The aircraft had to carry out a missed approach to a temporary winter landing strip and crashed in a steep nose down attitude, about 900 m past the runway end due to ice accretion (3/16 inch) on the wings. The de-ice boots were not used.

Probable Cause:

"Flight manuals..not followed..pilot in command
Weather condition..icing conditions
Altitude..inadequate..pilot in command
Terrain condition..snow covered
Overconfidence in aircraft's ability..pilot in command
Inadequate surveillance of management
Weather condition..fog
Weather evaluation..inaccurate..pilot in command
Company-induced management
Inadequate surveillance of operation..FAA
Light condition..dark night
In-flight planning/decision..poor..pilot in command
Expectancy..other person
Insufficient standards/requirements,operation/ management
Light condition..dark night
Weather evaluation..inaccurate..pilot in command
Fatigue (flight and ground schedule)..pilot in command
Flight into known adverse weather..intentional..pilot in command
Anti-ice/deice system..not used..pilot in command"

» NTSB id ANC85FA054


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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 Prudhoe Bay Airport, AK to Barter Island Airport, AK as the crow flies is 195 km (122 miles).

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