Crash-aerien 27 OCT 2011 d'un Beechcraft 100 King Air C-GXRX - Vancouver International Airport, BC (YVR)
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Statuts:Accident investigation report completed and information captured
Date:jeudi 27 octobre 2011
Type/Sous-type:Silhouette image of generic BE10 model; specific model in this crash may look slightly different
Beechcraft 100 King Air
Compagnie:Northern Thunderbird Air
Immatriculation: C-GXRX
Numéro de série: B-36
Année de Fabrication: 1970
Heures de vol:26993
Moteurs: 2 Pratt & Whitney Canada PT6A-28
Equipage:victimes: 2 / à bord: 2
Passagers:victimes: 0 / à bord: 7
Total:victimes: 2 / à bord: 9
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:0,7 km (0.4 milles) E of Vancouver International Airport, BC (YVR) (   Canada)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Vancouver International Airport, BC (YVR/CYVR), Canada
Aéroport de destination:Kelowna Airport, BC (YLW/CYLW), Canada
Numéro de vol: 204
A Beechcraft 100 King Air, C-GXRX, was climbing enroute from Vancouver International Airport, BC (YVR) to Kelowna Airport, BC (YLW) with 2 crew and 7 passengers when the left engine oil pressure gauge showed fluctuations. The crew requested a return to Vancouver and ATC cleared the aircraft to descend on vectors. During the descent they were asked if fire and rescue were needed and they declined. On short final the aircraft suddenly rolled left, pitched down and collided with the ground and a car. There was a post impact fire. All on board were rescued, however the pilot died a few hours later in hospital. The co-pilot succumbed to his injuries 2 weeks after the accident.

Probable Cause:

1. During routine aircraft maintenance, it is likely that the left-engine oil-reservoir cap was left unsecured.
2. There was no complete pre-flight inspection of the aircraft, resulting in the unsecured engine oil-reservoir cap not being detected, and the left engine venting significant oil during operation.
3. A non-mandatory modification, designed to limit oil loss when the engine oil cap is left unsecure, had not been made to the engines.
4. Oil that leaked from the left engine while the aircraft was repositioned was pointed out to the crew, who did not determine its source before the flight departure.
5. On final approach, the aircraft slowed to below VREF speed. When power was applied, likely only to the right engine, the aircraft speed was below that required to maintain directional control, and it yawed and rolled left, and pitched down.
6. A partially effective recovery was likely initiated by reducing the right engine’s power; however, there was insufficient altitude to complete the recovery, and the aircraft collided with the ground.
7. Impact damage compromised the fuel system. Ignition sources resulting from metal friction, and possibly from the aircraft’s electrical system, started fires.
8. The damaged electrical system remained powered by the battery, resulting in arcing that may have ignited fires, including in the cockpit area.
9. Impact-related injuries sustained by the pilots and most of the passengers limited their ability to extricate themselves from the aircraft.

Accident investigation:
Investigating agency: TSB Canada
Status: Investigation completed
Duration: 1 year and 9 months
Accident number: Report A11P0149
Download report: Final report


photo of Beechcraft-100-King-Air-C-GXRX
accident date: 27-10-2011
type: Beechcraft 100 King Air
registration: C-GXRX

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 Vancouver International Airport, BC et Kelowna Airport, BC est de 285 km (178 miles).
Accident location: Exact; deduced from official accident report.

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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