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Accident
Last updated: 22 October 2017
Statuts:
Date:samedi 24 août 1963
Heure:23:55
Type/Sous-type:Silhouette image of generic F27 model; specific model in this crash may look slightly different
Fairchild F-27
Compagnie:West Coast Airlines
Immatriculation: N2707
Numéro de série: 32
Année de Fabrication: 1959
Equipage:victimes: 0 / à bord: 3
Passagers:victimes: 0 / à bord: 13
Total:victimes: 0 / à bord: 16
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:2,4 km (1.5 milles) E of Calgary-McCall Field, AB (YYC) (   Canada)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Intern.
Aéroport de départ:Spokane International Airport, WA (GEG/KGEG), Etats-Unis d'Amérique
Aéroport de destination:Calgary-McCall Field, AB (YYC/CYYC), Canada
Numéro de vol: 794
Détails:
West Coast Airlines Flight 794 left Spokane, WA at 22:38 hours on a scheduled international flight to Calgary. The route flown was Spokane direct to Cranbrook. British Columbia. thence via Blue 3 to Calgary. At 23:33 hours Flight 794 reported to Calgary Terminal Control at 17 000 feet. The flight was then cleared to the Calgary VOR station at 13000 feet and requested to report by the Dyson Inter section. This was acknowledged and on request the latest Calgary weather was provided to the flight together with the altimeter setting (30.07 in Hg) and the runway to be used (28). Flight 794 reported by Dyson at 23:38 and was cleared to maintain 10000 feet. They were offered and accepted radar vectors to the localizer serving runway 28 and were then cleared for an approach. The flight was given a vector of 040 and advised it was south of the VOR station. At 23:46 hours the flight was advised it was 14 miles south of the localizer. Following successive vectors
of 350deg and 310deg the flight was advised at 23:51 hours it was 1-1/2 miles south of the localizer and clearance was issued for a straight-in approach on interception of the localizer. Thirty-three seconds later the flight was informed it was 2 miles from the outer marker intersection and then at 2352 hours that it was over the outer marker intersection at which time it was requested to call the control tower. The flight called the control tower and reported over the intersection following which it was cleared to land on runway 28 and provided with wind information. An acknowledgement of this at 23:52 hours was the last transmission from the aircraft. It was determined subsequently that the aircraft struck the ground about 8000 feet before the threshold of runway 28 and 420 feet to the right of the centreline of that runway. It slid for a distance of about 800 feet before coming to rest. At the time of impact the aircraft was approximately in a 5deg nose-down attitude.

Probable Cause:

PROBABLE CAUSE: "The pilot in command failed to maintain the approved minimum altitude on approach. The failure of the co-pilot to monitor the final stages of the approach is considered to be a contributing factor."

Sources:
» ICAO Accident Digest No.15 - Volume I, Circular 78-AN/66 (137-141)


Photos

photo of Fairchild F-27 N2707
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Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Spokane International Airport, WA et Calgary-McCall Field, AB est de 461 km (288 miles).

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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