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Last updated: 14 May 2021
Estado:
Fecha:jueves 16 diciembre 1976
Hora:13:08
Tipo:Silhouette image of generic YK40 model; specific model in this crash may look slightly different
Yakovlev Yak-40
Operador:Aeroflot / Ukraine
Registración: CCCP-87638
Numéro de série: 9141919
Año de Construcción: 1971
Horas Totales de la Célula:5762
Ciclos:6627
Motores: 3 Ivchenko AI-25
Tripulación:Fatalidades: 5 / Ocupantes: 5
Pasajeros:Fatalidades: 0 / Ocupantes: 0
Total:Fatalidades: 5 / Ocupantes: 5
Daños en la Aeronave: Destruido
Consecuencias: Written off (damaged beyond repair)
Ubicación:cerca Kazakovskoye (   Ucrania)
Fase: Maniobras (MNV)
Naturaleza:Entrenamiento
Aeropuerto de Salida:Zaporozhye Airport (OZH/UKDE), Ucrania
Aeropuerto de Llegada:Zaporozhye Airport (OZH/UKDE), Ucrania
Descripción:
The Yakovlev operated on a training flight during which the pilots were practicing countering a (simulated) uncommanded stabilizer trim change. During these manoeuvres the airplane stalled. It entered a spin and crashed 1.4 km west of Novogupalovka railway station near Kazakovskoye.

Probable Cause:

Conclusion: The cause of the disaster is the loss of airspeed, followed by stall and transfer to a tailspin. Possible causes of speed loss are:
a) a mistake in the piloting technique by the crew;
b) piloting the aircraft according to, possibly, overestimated readings of the left pilot's airspeed indicator.

Fuentes:
» Soviet Transports


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This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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