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Last updated: 18 June 2021
Statuts:
Date:jeudi 23 mai 1974
Heure:22:05
Type/Sous-type:Silhouette image of generic YK40 model; specific model in this crash may look slightly different
Yakovlev Yak-40
Compagnie:Aeroflot / Ukraine
Immatriculation: CCCP-87579
Numéro de série: 9221122
Année de Fabrication: 1972
Heures de vol:2367
Cycles:2068
Moteurs: 3 Ivchenko AI-25
Equipage:victimes: 4 / à bord: 4
Passagers:victimes: 25 / à bord: 25
Total:victimes: 29 / à bord: 29
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:16 km (10 milles) W of Kiev-Zhulhyany Airport (IEV) (   Ukraine)
Phase de vol: En approche (APR)
Nature:Transport de Passagers Nat.
Aéroport de départ:Khmelnitskiy Airport (HMJ/UKLH), Ukraine
Aéroport de destination:Kiev-Zhulhyany Airport (IEV/UKKK), Ukraine
Détails:
The Yakovlev Yak-40 operated on a domestic flight within the Soviet Union from Leningrad to Kirovograd with en route stops at Khmelnitskiy and Kiev.
During the descent and approach to Kiev, the flight crew likely became incapacitated by carbon monoxide. Several check list items were not accomplished, among others setting the barometric altimeter to airfield pressure. The flight crew commenced the final approach prematurely and the aircraft impacted terrain on a tank training range near Gorenychi at a speed of 420 km/h and a vertical speed of 3 m/s.

Probable Cause:

Probable cause: The likely cause of the disaster may be the loss of crew performance due to exposure to carbon monoxide and other toxic components. This led to the failure to perform a number of operations during the descent, including the failure to establish the barometric pressure of the aerodrome, which was also facilitated by the “overlap” in the communication of the controller with the crew. The result was a premature descent in the aircraft and its collision with the ground.

Sources:
» Soviet Transports


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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 Khmelnitskiy Airport et Kiev-Zhulhyany Airport est de 275 km (172 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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Yakovlev Yak-40

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