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Last updated: 25 October 2021
Statuts:Enquête Officielle
Date:mercredi 13 décembre 1950
Heure:10:00 UTC
Type/Sous-type:Silhouette image of generic DC4 model; specific model in this crash may look slightly different
Douglas DC-4-1009
Compagnie:Swissair
Immatriculation: HB-ILE
Numéro de série: 43093
Année de Fabrication: 1947
Equipage:victimes: 0 / à bord: 11
Passagers:victimes: 0 / à bord: 20
Total:victimes: 0 / à bord: 31
Dégats de l'appareil: Perte Totale
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Sydney Airport, NS (YQY) (   Canada)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Intern.
Aéroport de départ:Shannon Airport (SNN/EINN), Irlande
Aéroport de destination:Gander Airport, NL (YQX/CYQX), Canada
Détails:
The Swissair DC-4 had taken off from Geneva for a flight to New York via Shannon and Gander. Bad weather at Gander forced the crew to divert to Sydney. The aircraft descended too low on finals and struck a number of approach light poles. Full power was added, but no. 1 and 2 prop damage caused the plane to swing to the left. The DC-4 struck the ground in a left-wing-low attitude.
The wing was sheared off. Small fires broke out on the left hand side, but were controlled by the crew. About 30 minutes later fire again broke out which destroyed the forward fuselage.

Probable Cause:

PROBABLE CAUSE: "The impact of the aircraft with the ground while out of control due to failure on the part of the captain to maintain sufficient height to clear the approach light poles, three of which were struck by the aircraft. After striking the approach light poles, the captain and first officer were unable to maintain control of the aircraft due to the malfunctioning of numbers 1 and 2 engines and structural damage to the left wing and flap."

Sources:
» ICAO Circular 18-AN/15 (20-22)


Photos

photo of Douglas-DC-4-1009-HB-ILE
accident date: 13-12-1950
type: Douglas DC-4-1009
registration: HB-ILE
 

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 Shannon Airport et Gander Airport, NL est de 3156 km (1972 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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