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Last updated: 4 December 2021
Statuts:Enquête Officielle
Date:jeudi 31 mars 2011
Heure:15:07
Type/Sous-type:Silhouette image of generic DH3T model; specific model in this crash may look slightly different
de Havilland Canada DHC-3T Texas Turbine Otter
Compagnie:Black Sheep Aviation & Cattle Company
Immatriculation: C-GMCW
Numéro de série: 108
Année de Fabrication: 1956
Heures de vol:16415
Moteurs: 1 Garrett TPE331-10R-511C
Equipage:victimes: 1 / à bord: 1
Passagers:victimes: 0 / à bord: 0
Total:victimes: 1 / à bord: 1
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:70 km (43.8 milles) NE of Mayo, YT (   Canada)
Phase de vol: En vol (ENR)
Nature:Cargo
Aéroport de départ:Mayo Airport, YT (YMA/CYMA), Canada
Aéroport de destination:Rackla Airstrip, YT, Canada
Détails:
A de Havilland Canada DHC-3T Turbo Otter was destroyed in an accident 56 km northeast of Mayo, YT, Canada. The pilot, who was the sole occupant, sustained fatal injuries.
The wheel-ski equipped aircraft was being utilized in support of mineral exploration activities, to transport building materials, fuel, and winter camp supplies from Mayo, Yukon, to winter airstrips located at Withers Lake and Rackla River, Yukon. On the accident flight, the aircraft was transporting a load of twelve 6-inch by 6-inch wood timbers, each 16 feet long, and 2 barrels of jet fuel.
The accident flight departed Mayo at 14:48 under visual flight rules (VFR). Some nineteen minutes later the aircraft experienced a catastrophic in-flight breakup. Aircraft wreckage came down on a remote, snow-covered hillside at about 4300 feet above sea level.

Probable Cause:

Findings as to causes and contributing factors: "The aircraft departed controlled flight for reasons which could not be determined, and broke up due to high speed."

Accident investigation:
cover
Investigating agency: TSB Canada
Status: Investigation completed
Duration: 2 years and 2 months
Accident number: A11W0048
Download report: Final report

Sources:
» CADORS 2011C1056


Opérations de secours

TSB issued 1 Safety Recommendation

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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 Mayo Airport, YT et Rackla Airstrip, YT est de 145 km (91 miles).
Accident location: Approximate; accuracy within a few 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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