Crash-aerien 05 SEP 1967 d'un Ilyushin Il-18D OK-WAI - Gander Airport, NL (YQX)
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Statuts:Accident investigation report completed and information captured
Date:mardi 5 septembre 1967
Heure:05:10 UTC
Type/Sous-type:Silhouette image of generic IL18 model; specific model in this crash may look slightly different
Iliouchine Il-18D
Compagnie:CSA Ceskoslovenské Aerolinie
Immatriculation: OK-WAI
Numéro de série: 187009705
Année de Fabrication: 1967
Equipage:victimes: 4 / à bord: 8
Passagers:victimes: 33 / à bord: 61
Total:victimes: 37 / à bord: 69
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:1 km (0.6 milles) SE of Gander Airport, NL (YQX) (   Canada)
Phase de vol: En montée initiale (ICL)
Nature:Transport de Passagers Intern.
Aéroport de départ:Gander Airport, NL (YQX/CYQX), Canada
Aéroport de destination:Havana-José Martí International Airport (HAV/MUHA), Cuba
Numéro de vol: 523
The aircraft operated on a flight from Prague, Czechoslovakia, to Havana, Cuba with intermediate stops at Shannon, Ireland and Gander, Canada. The flight to Gander was routine and the Ilyushin was refueled for the remainder of the flight.
The flight took off from runway 14 and started to climb under an abnormally shallow angle. The highest altitude reached was 125 feet at the end of the runway. It was a dark overcast night and the initial climb area after passing the runway end was devoid of lights. The airplane then descended until it struck a wire of a mast and impacted the ground at a ground speed of 363 km/h. It continued until striking a railway embankment, 4000 feet past the end of the runway. A post impact fire broke out.

No probable cause could be established by the investigators. The airplane was overloaded by 119 kg but this would have had no significant effect on the performance of the aircraft.
According to available data the pilot-in-command's altimeter was subject to frictional errors, which could have resulted in slight delays in response and the pilot-in-command's and co-pilot's gyro horizons were subject to pitch indication errors as a result of acceleration forces, which could have ranged from 1,5° to 4°.

Probable Cause:

PROBABLE CAUSE: Undetermined.

» ICAO Accident Digest Circular 107-AN/81 (247-254)


photo of Ilyushin-Il-18D-OK-WAI

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 Gander Airport, NL et Havana-José Martí International Airport est de 3752 km (2345 miles).
Accident location: Approximate; accuracy within a few kilometers.

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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Ilyushin Il-18

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