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Last updated: 23 September 2021
Statuts:Enquête Officielle
Date:lundi 21 février 2005
Heure:18:25
Type/Sous-type:Silhouette image of generic H25A model; specific model in this crash may look slightly different
Hawker Siddeley HS-125-600A
Compagnie:Scott Aviation
Immatriculation: N21SA
Numéro de série: 256006
Année de Fabrication: 1973
Moteurs: 2 Garrett TFE731-3-1H
Equipage:victimes: 0 / à bord: 2
Passagers:victimes: 0 / à bord: 4
Total:victimes: 0 / à bord: 6
Dégats de l'appareil: Substantiels
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Bromont Airport, QC (ZBM) (   Canada)
Phase de vol: A l'atterrissage (LDG)
Nature:Affaires
Aéroport de départ:Montreal-Pierre Elliott Trudeau International Airport, QC (YUL/CYUL), Canada
Aéroport de destination:Bromont Airport, QC (ZBM/CZBM), Canada
Détails:
The aircraft took off from Montréal (YUL) at 17:56 for a night IFR flight to Bromont Airport, QC (ZBM). Approximately nine minutes before the landing, the co-pilot activated the aircraft radio control of aerodrome lighting (ARCAL) and contacted the approach UNICOM at Bromont. The Bromont Airport dispatcher informed the crew that only the PAPI was operational. A NOTAM had been issued on 17 February 2005, indicating that the runway edge lights would be out of order until 22:00 UTC, 22 February 2005. The PAPI and the approach lights lit up when the co-pilot activated the ARCAL, because their switches had been left on. At approximately 1000 feet (300 m) asl and five miles (8 km) from the threshold, the flight crew had the approach lights and the PAPI in sight. It was not evident whether the PAPI was positioned on the right or the left side of the runway. The airport chart published by Jeppesen indicated "PAPI L" (left). In response to a query from the crew, the Bromont dispatcher indicated that the PAPI was on the right side of the runway. From his location facing the aircraft, the PAPI was to the dispatcher's right. The approach was continued visually, keeping to the left of the PAPI. At approximately two miles (3,2 km) from the runway threshold, the co-pilot noticed that the approach lights were at his right. He reported his observation to the captain, who paid little attention to it. Less than two seconds before the crash, the co-pilot asked the captain whether he had the runway in sight. The captain did not reply and continued the descent until the aircraft touched down 300 feet (90 m) to the left of runway 05L, 1800 feet (550 m) beyond the threshold. When the captain realized that he was not on the runway, he applied full power to execute a missed approach; however, the aircraft hit a ditch approximately four feet (1,20 m) deep that was perpendicular to the flight path. The nose wheel and right landing gear collapsed. The aircraft came to a stop facing back the way it had come, after travelling a distance of 1800 feet during which it made a full turn followed by a 180-degree turn.

Probable Cause:

FAITS ÉTABLIS QUANT AUX CAUSES ET AUX FACTEURS CONTRIBUTIFS:
1. L'équipage de conduite a tenté un atterrissage de nuit sans feux de bord de piste. L'appareil s'est posé à 300 pieds à gauche de la piste 05L et à 1800 pieds au-delà du seuil.
2. La piste n'était pas fermée pour son utilisation la nuit malgré l'absence de feux de bord de piste. Rien n'exigeait qu'elle soit fermée.
3. La mauvaise planification du vol, le non-respect de la réglementation et des procédures d'utilisation normalisées (SOP) et le manque de communications entre les deux pilotes révèlent un manque de discipline aéronautique de la part de l'équipage, ce qui a contribué à l'accident.

Accident investigation:
cover
Investigating agency: TSB Canada
Status: Investigation completed
Duration: 1 year and 2 months
Accident number: A05Q0024
Download report: Final report

Sources:
» TSB Report Number A05Q0024


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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 Montreal-Pierre Elliott Trudeau International Airport, QC et Bromont Airport, QC est de 80 km (50 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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