Date & Time: Sep 15, 1955 at 1245 LT
Type of aircraft:
Scheduled Revenue Flight
Moscow – Krasnoyarsk – Irkutsk – Khabarovsk
Crew on board:
Pax on board:
Aircraft flight hours:
The aircraft was performing flight SU005 from Moscow to Khabarovsk with intermediate stops at Krasnoyarsk and Irkutsk, carrying three passengers, a crew of four and a load of various goods for a total weight of 417 kilos. While cruising at an altitude of 3,000 meters, weather conditions deteriorated and the crew encountered thunderstorm activity. Due to severe turbulences, the aircraft went out of control and entered a dive. At an altitude between 500 and 1,000 meters, the airplane disintegrated in the air and all debris scattered in a field and a wooded area located in Komarovo, about 37 km south-southwest of Kansk. All seven occupants were killed.
It was determined that the loss of control was the consequence of severe turbulences that exceeded the design of certain parts of the airplane. Poor flight preparation on part of the operator and the failure to consider the possibility of a deterioration of the weather conditions were considered as contributing factors. Also, the crew was not properly briefed about weather conditions prior to departure from Krasnoyarsk Airport.