Narrative:En route from Leninabad (now Khudzhand) to Dushanbe the crew deviated from their course by 67km in order to avoid thunderstorm activity. They then reported passing a beacon while they where actually 37km from that beacon. The air traffic controller cleared the flight to descend from 6000 m to 4800 m. Then the crew has reported passing the outer marker at the prescribed height, while the plane was actually 43 km from the beacon. The controller cleared the flight down to 3600 m. The crew continued their descent and carried out the procedure right turn, following which the flight was cleared down to 2100 m. At height of 2840 m the crew noticed that their position was not correct, stopped descend and initiated a left turn. The Yak-40 entered clouds and struck the slope of a mountain, 44 km NW of the airport.
|Date:||Thursday 12 June 1980|
|Operator:||Aeroflot / Tajikistan|
|C/n / msn:|| 9910403|
|First flight:|| 1969|
|Engines:|| 3 Ivchenko AI-25|
|Crew:||Fatalities: 4 / Occupants: 4|
|Passengers:||Fatalities: 25 / Occupants: 25|
|Total:||Fatalities: 29 / Occupants: 29 |
|Airplane damage:|| Damaged beyond repair|
|Location:||44 km (27.5 mls) NW of Dushanbe ( Tajikistan)
|Phase:|| Approach (APR)|
|Nature:||Domestic Scheduled Passenger|
|Departure airport:||Leninabad Airport (LBD/UTDL), Tajikistan|
|Destination airport:||Dushanbe Airport (DYU/UTDD), Tajikistan|
It appeared that the radio compass did not work properly due to the proximity of the thunderstorm and the wind was different than forecast.
Controlled Flight Into Terrain (CFIT) - Mountain
» Soviet Transports
» Dmitriy Yertsov
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not
display the exact flight path.
Distance from Leninabad Airport to Dushanbe Airport as the crow flies is 199 km (124 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Networkĺs opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.