ASN Aircraft accident Antonov An-12 CCCP-11337 Ulan-Ude Airport (UUD)
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Date:Saturday 11 September 1965
Type:Silhouette image of generic AN12 model; specific model in this crash may look slightly different
Antonov An-12
Operator:Aeroflot / Polar
Registration: CCCP-11337
MSN: 2400503
First flight: 1962
Total airframe hrs:4030
Crew:Fatalities: 6 / Occupants: 6
Passengers:Fatalities: 2 / Occupants: 2
Total:Fatalities: 8 / Occupants: 8
Aircraft damage: Damaged beyond repair
Location:32 km (20 mls) NNW of Ulan-Ude Airport (UUD) (   Russia)
Phase: Approach (APR)
Departure airport:Krasnoyarsk Airport (KJA/UNKL), Russia
Destination airport:Irkutsk Airport (IKT/UIII), Russia
The An-12 operated on a cargo flight with a 10,475 kg of grapes from Tashkent to Yuzhno-Sakhalinsk. En route stops were planned in Fergana, Novosibirsk, Krasnoyarsk and Irkutsk. During the leg from Krasnoyarsk to Irkutsk, the airport at Irkutsk was reported closed due to poor weather.
The crew decided to divert to Ulan-Ude although that airport was not prepared to handle An-12s. The crew did not set QNH for Ulan-Ude on approach, causing false altitude readings. The aircraft crashed at a height of some 1,200 metres into a wooded mountain slope 32 km north-west of Ulan-Ude.

Controlled Flight Into Terrain (CFIT) - Mountain

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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 Krasnoyarsk Airport to Irkutsk Airport as the crow flies is 879 km (549 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.

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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