Aircraft
The aircraft involved in the accident was a Tupolev Tu-104B with two Mikulin AM-3M-500 engines, registered СССР-42506, originally to the Uzbekistan division of the state airline, Aeroflot. At the time of the accident, the aircraft sustained had 20,582 flight hours and 9412 pressurization cycles. The aircraft had 100 passenger seats, hence it was at full capacity when it crashed.Crew
Eight crew members were aboard Flight 3932. The cockpit crew consisted of: *Synopsis
Weather conditions at Sverdlovsk were reported to be mild; visibility was over 6 kilometers, and light northwest winds. Flight 3932 was on the Sverdlovsk-Knevichi route with stopovers at Omsk, Tolmachevo, Kadala, and Khabarovsk airports. The flight crashed shortly after takeoff on the Koltsovo-Omsk part of the route. The flight took off from Koltsovo Airport at 18:33 Moscow time and at 18:34:21 headed on a bearing of 256° for the route to Omsk. As a routine procedure, air traffic control instructed the crew to make a left turn and climb to an altitude of after takeoff; the crew responded that they would report when they reached the altitude. At 18:35:25 Moscow time, 5–6 seconds after setting the engines to standard power, with an altitude of and a speed of the crew began the left turn while in the clouds, with a bank angle between 35-40°. At 20:37 local time (18:37 Moscow time), when the flight was at an altitude of , the bank angle reached 75-80°, after which the crew completely lost control of the aircraft. The plane crashed into a nearby forest at a speed of .Cause
The aircraft crashed due to incorrect indications by the main artificial horizon and the compass system, caused by a failure of the electrical supply, resulting inSee also
* Aeroflot Flight 964, also a Tupolev Tu-104, which crashed just two weeks after Flight 3932 experiencing similar electrical failures. * Aeroflot Flight 1912, another Tupolev Tu-104, crashed after a hard landing caused by similar mechanical failures. * Aeroflot Flight 2415, another Tupolev Tu-104, crashed after takeoff experiencing similar equipment failure.References
{{coord, 56, 42, 41, N, 60, 38, 41, E, source:RU-wiki, display=title Accidents and incidents involving the Tupolev Tu-104 Aviation accidents and incidents in the Soviet Union Aviation accidents and incidents in Russia Airliner accidents and incidents caused by electrical failure Aviation accidents and incidents in 1973 1973 in the Soviet Union 1973 in Russia 3932 September 1973 events in Europe