Accident Yakovlev Yak-40 CCCP-87689,
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ASN Wikibase Occurrence # 328317

Date:Thursday 12 June 1980
Type:Silhouette image of generic YK40 model; specific model in this crash may look slightly different    
Yakovlev Yak-40
Owner/operator:Aeroflot / Tajikistan
Registration: CCCP-87689
MSN: 9910403
Year of manufacture:1969
Engine model:Ivchenko AI-25
Fatalities:Fatalities: 29 / Occupants: 29
Aircraft damage: Destroyed, written off
Location:44 km NW of Dushanbe -   Tajikistan
Phase: Approach
Nature:Passenger - Scheduled
Departure airport:Leninabad Airport (LBD/UTDL)
Destination airport:Dushanbe Airport (DYU/UTDD)
En route from Leninabad (now Khudzhand) to Dushanbe the crew deviated from their course by 67 km in order to avoid thunderstorm activity. They then reported passing a beacon while they where actually 37 km 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.
It appeared that the radio compass did not work properly due to the proximity of the thunderstorm and the wind was different than forecast.


Soviet Transports
Dmitriy Yertsov


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