ASN Aircraft accident Tupolev Tu-104B CCCP-42405 Irkutsk Airport (IKT)
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Date:Sunday 25 July 1971
Type:Silhouette image of generic t104 model; specific model in this crash may look slightly different
Tupolev Tu-104B
Operator:Aeroflot, West Siberia Civil Aviation Directorate
Registration: CCCP-42405
MSN: 820202
First flight: 1958
Total airframe hrs:19489
Engines: 2 Mikulin AM-3M-500
Crew:Fatalities: 4 / Occupants: 8
Passengers:Fatalities: 93 / Occupants: 118
Total:Fatalities: 97 / Occupants: 126
Aircraft damage: Destroyed
Aircraft fate: Written off (damaged beyond repair)
Location:Irkutsk Airport (IKT) (   Russia)
Crash site elevation: 494 m (1621 feet) amsl
Phase: Approach (APR)
Nature:Domestic Scheduled Passenger
Departure airport:Novosibirsk-Tolmachevo Airport (OVB/UNNN), Russia
Destination airport:Irkutsk Airport (IKT/UIII), Russia
The Tupolev was on a night-time approach to Irkutsk in instrument conditions when the crew were told that they were flying to the left of the extended runway centerline. An excessive turn then placed the aircraft to the right of the extended centerline. The approach was being flown at a speed some 15-20 mph below the normal approach speed with a high rate of descent. The plane was in a slight left bank when it touched down hard some 500 feet short of the runway. The left wing broke off, causing the plane to roll to the left, bursting into flames.


» Soviet Transports
» Aviation Disasters / D. Gero
» Flight International 11 December 1976 (1695)


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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 Novosibirsk-Tolmachevo Airport to Irkutsk Airport as the crow flies is 1448 km (905 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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Tupolev Tu-104

  • 207 built
  • 20th loss
  • 12th fatal accident
  • The worst accident (at the time)
  • 3rd worst accident (currently)
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  • 2nd worst accident (at the time)
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