ASN Wikibase Occurrence # 329895
| Date: | Thursday 23 May 1974 |
| Time: | 22:05 |
| Type: |  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 |
| 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) |
| Kiev-Zhulhyany Airport (IEV/UKKK) |
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
Location
Revision history:
| Date/time | Contributor | Updates |
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