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Last updated: 6 March 2021
Status:Definitief
Datum:donderdag 26 december 1974
Tijd:18:05
Type:Silhouette image of generic BN2P model; specific model in this crash may look slightly different
Britten-Norman BN-2A Islander
Luchtvaartmaatschappij:Harbor Airlines
Registratie: N66HA
Constructienummer: 31
Bouwjaar: 1968-10-18 (6 years 2 months)
Bemanning:slachtoffers: 1 / inzittenden: 1
Passagiers:slachtoffers: 3 / inzittenden: 5
Totaal:slachtoffers: 4 / inzittenden: 6
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:ca 1 km N of Seattle/Tacoma International Airport, WA (SEA) (   Verenigde Staten)
Fase: Initiële klim (ICL)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Seattle/Tacoma International Airport, WA (SEA/KSEA), Verenigde Staten
Vliegveld van aankomst:Oak Harbor Airport, WA (ODW/KOKH), Verenigde Staten
Vluchtnummer: 308
Beschrijving:
Visibility was poor due to snowfall when the Islander departed Tacoma Airport for Oak Harbor. Shortly after takeoff the airplane collided with terrain in the residential area of Riverton Heights, WA. Unknown matter in the pitot tube had caused unreliable readings of the airspeed indicator.

Probable Cause:

PROBABLE CAUSE:
pilot in command - diverted attention from operation of aircraft
miscellaneous acts,conditions - instruments-misread or failed to read
FACTORS:
weather - low ceiling
weather - snow
terrain - high obstructions
instruments/equipment and accessories - flight and navigation instruments: airspeed
miscellaneous acts,conditions - obstructed
miscellaneous - foreign material affecting normal operations

Bronnen:
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» NTSB
» Thomas Brügge
» World Directory of Airliner Crashes


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Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Seattle/Tacoma International Airport, WA en Oak Harbor Airport, WA bedraagt 93 km (58 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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