Sverdlovsk – Omsk – Novosibirsk – Chita – Khabarovsk – Vladivostok

On September 30, 1973 at 08:37 PM, Sverdlovsk – Omsk – Novosibirsk – Chita – Khabarovsk – Vladivostok experienced a crash involving Tupolev TU-104, operated by Aeroflot - Russian International Airlines, with the event recorded near Sverdlovsk-Koltsovo Sverdlovsk oblast.

The flight was categorized as scheduled revenue flight and the reported phase was takeoff (climb) at a airport (less than 10 km from airport) crash site.

108 people were known to be on board, 108 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.

Crew on board: 8, crew fatalities: 8, passengers on board: 100, passenger fatalities: 100, other fatalities: 0.

The listed crash cause is technical failure. After takeoff by night from Sverdlovsk-Koltsovo Airport, the crew was cleared to climb to 1,500 meters and initiated a left turn as instructed by ATC. The airplane first banked left to an angle of 35-40° and at an altitude of 1,200 meters, the left angle increased to 75-80° when control was lost. The airplane entered a dive and crashed in a huge explosion in a wooded area located 10 km from the airport. The aircraft disintegrated on impact and none of the 108 occupants survived the crash. At the time of the accident, weather conditions were considered as marginal with a visibility limited to 6 km, overcast 800 feet, wind from northwest at 15 knots and light rain.

Aircraft reference details include registration CCCP-42506, MSN 0 2 19 04, year of manufacture 1960.