ASN logo
Last updated: 20 October 2020
Statuts:Enquête Officielle
Date:vendredi 9 décembre 1977
Heure:ca 22:55 UTC
Type/Sous-type:Silhouette image of generic H25A model; specific model in this crash may look slightly different
de Havilland DH-125-400A
Compagnie:Churchill Falls Co.
Immatriculation: CF-CFL
Numéro de série: 25213/NA741
Année de Fabrication: 1970
Moteurs: 2 Rolls-Royce Viper 522
Equipage:victimes: 2 / à bord: 2
Passagers:victimes: 6 / à bord: 6
Total:victimes: 8 / à bord: 8
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:3 km (1.9 milles) NW of Churchill Falls Airport, NL (ZUM) (   Canada)
Phase de vol: En approche (APR)
Nature:Affaires
Aéroport de départ:Montreal (unknown airport), QC, Canada
Aéroport de destination:Churchill Falls Airport, NL (ZUM/CZUM), Canada
Détails:
Optical illusion on a night time approach caused the plane to crash some 3 km short of runway 14.

Probable Cause:

CONCLUSIONS:
1) Cockpit discipline was inadequate as the approach entered the final phase.
2) Distractions in the cockpit degraded crew performance.
3) The pilots deprived themselves of essential altitude information by not effectively monitoring the flight instruments during the final approach.
4) The Captain, by relying on visual cues from the runway environment lighting in conditions where those cues were degraded, became exposed to visual illusions.
5) The pilots permitted the aircraft to deviate below the safe approach profile until it struck the terrain.
6) On the assumptions that there had been at least one serviceable ELT on board, that it had been activated as a result of the impact or by other means, and that there was the capability at Churchill Falls of homing to the point of origin of the ELT signal, the rescue activity may have been expedited.

Sources:
» ICAO Circular 153-AN/56 (Accident Digest 23, p.181-193)


Photos

Add your photo of this accident or aircraft
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.
languages: languages

Share

HS-125

  • 290 built
  • 13ème loss
  • 11ème accident fatal
  • le accident The le plus grave (à ce moment là)
  • le accident 3ème le plus grave (en ce moment)
» safety profile

 Canada
  • le accident 39ème le plus grave (à ce moment là)
  • le accident 49ème le plus grave (en ce moment)
» safety profile