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Date:Wednesday 1 April 1970
Type:Silhouette image of generic AN24 model; specific model in this crash may look slightly different
Antonov An-24B
Operator:Aeroflot, West Siberia Civil Aviation Directorate
Registration: CCCP-47751
MSN: 79901204
First flight: 1967
Total airframe hrs:3975
Crew:Fatalities: 5 / Occupants: 5
Passengers:Fatalities: 40 / Occupants: 40
Total:Fatalities: 45 / Occupants: 45
Aircraft damage: Destroyed
Aircraft fate: Written off (damaged beyond repair)
Location:20 km (12.5 mls) SE of Toguchin, Novosibirsk region (   Russia)
Phase: En route (ENR)
Nature:Domestic Scheduled Passenger
Departure airport:Novosibirsk-Tolmachevo Airport (OVB/UNNN), Russia
Destination airport:Krasnoyarsk Airport (KJA/UNKL), Russia
An Antonov 24B operated by Aeroflot was destroyed when it crashed near Toguchin, Novosibirsk Region, Russia. All 40 passengers and five crew members were killed in the accident.
Aeroflot flight 1661 took off from Novosibirsk (OVB) at 03:42 on a domestic flight to Krasnoyarsk (KJA). At 04:07, at an altitude of 5400 metres, the airplane collided with a radiosonde weather balloon of the Hydrometeorological Service. The nose section of the plane was severed and the An-24 entered an uncontrolled descent. At an altitude of 2000 metres the airplane started to disintegrate. Parts of the aircraft caught fire and fell on farm land.
A youth ice hockey team, flying to a game in the Golden Puck tournament, died in the crash.

Mid air collision
Loss of control

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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 Krasnoyarsk Airport as the crow flies is 626 km (392 miles).
Accident location: Exact; deduced from official accident report.

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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Antonov An-24

  • 1332 built
  • 22nd loss
  • 12th fatal accident
  • 3rd worst accident (at the time)
  • 16th worst accident (currently)
» safety profile

  • 11th worst accident (at the time)
  • 56th worst accident (currently)
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