Accident Yakovlev Yak-40 CCCP-87579, Thursday 23 May 1974
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Date:Thursday 23 May 1974
Time:22:05
Type:Silhouette image of generic YK40 model; specific model in this crash may look slightly different    
Yakovlev Yak-40
Owner/operator:Aeroflot / Ukraine
Registration: CCCP-87579
MSN: 9221122
Year of manufacture:1972
Total airframe hrs:2367 hours
Cycles:2068 flights
Engine model:Ivchenko AI-25
Fatalities:Fatalities: 29 / Occupants: 29
Other fatalities:0
Aircraft damage: Destroyed, written off
Category:Accident
Location:16 km W of Kiev-Zhulhyany Airport (IEV) -   Ukraine
Phase: Approach
Nature:Passenger - Scheduled
Departure airport:Khmelnitskiy Airport (HMJ/UKLH)
Destination airport:Kiev-Zhulhyany Airport (IEV/UKKK)
Narrative:
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: 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

Statistics

  • 26th worst accident in 1974
  • 12th worst accident of this aircraft type
  • 2nd worst accident of this aircraft type at the time

Location

Revision history:

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