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Last updated: 23 September 2021
Statuts:Enquête Officielle
Date:jeudi 8 avril 1954
Heure:10:03 MST
Type/Sous-type:Canadair C-4-1 North Star
Compagnie:Trans-Canada Air Lines - TCAL
Immatriculation: CF-TFW
Numéro de série: 150
Année de Fabrication:
Moteurs: 4 Rolls-Royce Merlin 622
Equipage:victimes: 4 / à bord: 4
Passagers:victimes: 31 / à bord: 31
Total:victimes: 35 / à bord: 35
Victimes au sol:victimes: 1
Victime de la collision:victimes: 1
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Moose Jaw, SK (   Canada)
Phase de vol: En vol (ENR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Winnipeg International Airport, MB (YWG/CYWG), Canada
Aéroport de destination:Vancouver International Airport, BC (YVR/CYVR), Canada
Numéro de vol:9
Détails:
The Canadair C-4 was on a flight to Vancouver and had been cleared on an IFR flightplan flying at 6000 feet on Green Airway 1 between Winnipeg and Calgary.
At 09:57 an RCAF Harvard Mk. II took off from RCAF Station Moose Jaw for a navigation cross-country exercise. The Harvard was climbing to 9000 feet, crossed the Airway at 6000 feet and collided with the C-4. A large portion of the wreckage fell on a house which was destroyed by fire, killing the only occupant. The Harvard pilot and all 35 occupants of the C-4 where also killed.

Probable Cause:

PROBABLE CAUSE: "1) Failure on the part of the pilots of both aircraft to maintain a proper lookout, the onus of responsibility for keeping out of the way being with the Harvard aircraft as it had the other on its own right side. 2) The Harvard aircraft in crossing the airway climbed through altitudes normally used by aircraft flying along the airway. 3) The Board up to the present has been unable to determine whether the window post on the left side of the Canadair C4-1 aircraft hid the Harvard aircraft from view, but there are indications that this was possible."

Sources:
» ICAO Accident Digest, Circular 47-AN/42 (93-96)


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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 Winnipeg International Airport, MB et Vancouver International Airport, BC est de 1851 km (1157 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.

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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