22 January 1971 Surgut Aeroflot Antonov An-12 crash
Aeroflot Antonov An-12 registered CCCP-11105, sister ship to the aircraft involved in the accident | |
| Accident | |
|---|---|
| Date | 22 January 1971 |
| Summary | Icing due to bleed air valves being closed |
| Site | Surgut, RSFSR, Soviet Union 61°20′36″N 73°24′12″E / 61.34333°N 73.40333°E |
| Aircraft | |
| Aircraft type | Antonov An-12B |
| Operator | Aeroflot (Komi UGA) |
| Registration | CCCP-11000 |
| Flight origin | Omsk Tsentralny Airport (OMS/UNOO) |
| Destination | Surgut International Airport (SGC/USRR) |
| Passengers | 2 |
| Crew | 12 |
| Fatalities | 14 |
| Survivors | 0 |
The 22 January 1971 Surgut Aeroflot Antonov An-12 crash occurred when an Aeroflot Antonov An-12B, registered CCCP-11000, flying from Omsk Tsentralny Airport, in the Soviet Union's (RSFSR) on 22 January 1971, crashed 15 km (9.3 mi) short of the runway on approach to Surgut International Airport, Surgut, RSFSR. An investigation found the aircraft's ice protection system was ineffective because the engine bleed air valves were closed during the flight; ice therefore built up on the aircraft causing it to go out of control.