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Last updated: 22 September 2021
Statuts:Enquête Officielle
Date:vendredi 16 janvier 2009
Heure:21:10
Type/Sous-type:Silhouette image of generic BE10 model; specific model in this crash may look slightly different
Beechcraft 100 King Air
Compagnie:SkyNorth Air
Immatriculation: C-GNAA
Numéro de série: B-24
Année de Fabrication: 1969
Moteurs: 2 Pratt & Whitney Canada PT6A-28
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 0
Total:victimes: 0 / à bord: 2
Dégats de l'appareil: Substantiels
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Island Lake, MB (CYIV) (   Canada)
Phase de vol: En approche (APR)
Nature:Convoyage
Aéroport de départ:Thompson Airport, MB (YTH/CYTH), Canada
Aéroport de destination:Island Lake/Garden Hill Airport, MB (YIV/CYIV), Canada
Détails:
The crew of a Skynorth Air Ltd Beech 100 was on a re-positioning flight from Thompson, MB, to Island Lake. On arrival in the Island Lake area, the crew commenced an instrument approach to runway 12. During the approach, the aircraft descended and the crew carried out a missed approach. During the missed approach, the aircraft struck a tree. The crew continued the missed approach and returned for a landing at Island Lake without further incident. No injuries were reported. The aircraft sustained damage to the wing leading edge and underside, and to its landing gear doors.

Probable Cause:

FINDINGS AS TO CAUSES AND CONTRIBUTING FACTORS:
1. The crew conducted an Area Navigation (RNAV) approach for which they were not trained, with an aircraft that was not properly equipped nor approved for such purpose.
2. The aircraft descended 300 feet below the minimum descent altitude (MDA) as a result of a number of lapses, errors and adaptations which, when combined, resulted in the mismanaged approach.
3. The aural warning on the aircraft's altitude alerter had been silenced prior to the approach, which precluded it from alerting the crew when the aircraft descended below minimum descent altitude.
4. The SkyNorth standard operating procedures for conducting a non-precision approach were not followed, which resulted in the aircraft descending below the minimum descent altitude. During the ensuing missed approach, the aircraft struck trees.

Accident investigation:
cover
Investigating agency: TSB Canada
Status: Investigation completed
Duration: 1 year and 6 months
Accident number: A09C0012
Download report: Final report


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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 Thompson Airport, MB et Island Lake/Garden Hill Airport, MB est de 296 km (185 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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