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Accident
Last updated: 19 October 2017
Statuts:Enquête Officielle
Date:mardi 20 janvier 1998
Heure:18:10
Type/Sous-type:Silhouette image of generic JS31 model; specific model in this crash may look slightly different
British Aerospace 3112 Jetstream 31
Compagnie:Alberta Citylink
Immatriculation: C-FBIE
Numéro de série: 815
Année de Fabrication: 1988
Heures de vol:16180
Moteurs: 2 Garrett TPE331-10UGR-516H
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 13
Total:victimes: 0 / à bord: 15
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Lloydminster Airport, AB (YLL) (   Canada)
Phase de vol: A l'atterrissage (LDG)
Nature:Transport de Passagers Nat.
Aéroport de départ:Calgary International Airport, AB (YYC/CYYC), Canada
Aéroport de destination:Lloydminster Airport, AB (YLL/CYLL), Canada
Numéro de vol: 933
Détails:
At 17:00 Alberta Citylink flight 933 took off from Calgary on a scheduled flight to Lloydminster. The crew planned a non-precision automatic direction finder (ADF) approach to runway 25 at Lloydminster with an overcast ceiling of 400 feet, visibility of 5 statute miles in blowing snow and mist, and the wind from 110 degrees true at 7 knots. When the aircraft was inbound, the flight service station (FSS) specialist reported that the visibility had decreased to 3 sm. The crew were aware of approximately to ¼ inch build-up of ice on the aircraft during descent and so planned for a flap 20 landing. The first officer was flying the approach from the right-hand seat while the captain was monitoring the instruments and looking outside the aircraft for visual contact with the runway environment. When the captain saw the runway from the minimum descent altitude (MDA), he took control for the landing. The aircraft was north of the extended centre line of runway 25. Flaps 35 was selected, the power was reduced to flight idle, a turn to regain the centre line was carried out, and a descent was commenced from MDA. The aircraft contacted the runway surface heavily, moving left to right. As a result, the left main landing gear collapsed. Both propellers struck the runway, and the left propeller separated from the engine. The aircraft slid along the runway on the belly pod for a distance of about 1 800 feet. The left wing contacted the snow on the edge of the runway, resulting in a turn of about 160 degrees. The evacuation took place immediately after the aircraft came to rest; all occupants escaped quickly through the right, over-wing exit.
The aircraft was sold to Dodson International Inc. to be used for spares.

Probable Cause:

CAUSES: "L'approche non stabilisée s'est traduite par un atterrissage dur parce que le commandant avait modifié la configuration de l'appareil et que la vitesse verticale de descente élevée n'avait pas été annulée avant la prise de contact avec la piste. La réduction de la puissance du moteur jusqu'au ralenti vol, le givre sur la cellule et le temps disponible pour la descente finale ont eu une incidence sur la vitesse verticale de descente de l'appareil. Le mouvement de gauche à droite de l'appareil a contribué aux dommages subis à l'atterrissage."

Accident investigation:
cover
Investigating agency: TSB Canada
Status: Investigation completed
Duration: 1 year and 4 months
Accident number: TSB Report A98W0011
Download report: Final report


Photos

photo of British Aerospace 3112 Jetstream 31 C-FBIE
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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 Calgary International Airport, AB et Lloydminster Airport, AB est de 360 km (225 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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