Accident
Last updated: 16 April 2014
Status:
Datum:zaterdag 2 maart 1957
Type:Silhouette image of generic DC4 model; specific model in this crash may look slightly different
Douglas C-54B-20-DO
Luchtvaartmaatschappij:Alaska Airlines
Registratie: N90449
Constructienummer: 27239
Bouwjaar: 1944
Bemanning:slachtoffers: 3 / inzittenden: 3
Passagiers:slachtoffers: 2 / inzittenden: 2
Totaal:slachtoffers: 5 / inzittenden: 5
Schade: Afgeschreven
Gevolgen: Written off (damaged beyond repair)
Plaats:6 km (3.8 mijl) W of Blyn, WA (   Verenigde Staten)
Fase: Onbekend (UNK)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Fairbanks International Airport, AK (FAI/PAFA), Verenigde Staten
Vliegveld van aankomst:Seattle/Tacoma International Airport, WA (SEA/KSEA), Verenigde Staten
Vluchtnummer: 100
Beschrijving:
Alaska Airlines Flight 100 had arrived at Fairbanks from Seattle at 07:17 and was to fly back a little later. An IFR flight plan was filed with en route altitudes of 9500 to 12000 feet. The aircraft took off at 09:58 in VFR weather conditions. After following the Amber 2 airway at 10000 feet, the aircraft climbed to 12000 feet following the Blue airway. At 12:40 while over Haines, the crew cancelled their instrument flight plan and informed ARTC that it would proceed VFR to Annette and would file DVFR (Defence VFR) after Annette and before entering the CADIZ (Canadian Air Defence Identification Zone). Thereafter Flight 100 proceeded reporting positions as DVFR at 1000 feet. Last radio contact with the flight was at 17:17 when it reported its position near Dungeness in VFR.
Eyewitnesses in the area saw the aircraft beneath the overcast at 1000-1500 feet heading for foothills, the tops (2100 feet) of which were obscured by the clouds. The aircraft struck trees and cut a swath in the steeply rising wooded slope. The wings broke off and a fire erupted.
The wreckage was located one day after the accident, but could not be reached before March 6, due to adverse weather and inaccessibility of the location. The investigators found out that the co-pilots instruments had been removed from the relatively undamaged panel and stolen by vandals.


PROBABLE CAUSE: "Navigational error and poor judgement exhibited by the pilot in entering an overcast in a mountainous area at a dangerously low altitude."

Bronnen:
» ICAO Accident Digest No.9, Circular 56-AN/51 (58-62)


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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 Fairbanks International Airport, AK en Seattle/Tacoma International Airport, WA bedraagt 2443 km (1527 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs 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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