[1] On 2 April 2012, the ATR-72 turboprop aircraft operating the flight crashed shortly after take-off from Roschino International Airport, killing 33 of the 43 people on board.

[2] Investigation carried out by the Russian Interstate Aviation Committee (MAK) revealed that the aircraft had not been de-iced prior to its take-off, even though it had been parked for hours in snowy condition.

The accident occurred at about 1 nautical mile (1 mi; 2 km) southwest of the end of the main runway, near the village of Gorkovka.

It was delivered to TransAsia Airways on 16 December 1992 and subsequently served with Finnair and Aero Airlines before entering service with UTair Aviation on 23 July 2008.

UTair had sold 40 tickets for the flight, but a passenger from Khanty-Mansi Autonomous Okrug failed to arrive on time.

He had completed his flight training in Ulyanovsk Civil Flying School and graduated in 2008, subsequently employed by Utair on the same year as a First Officer.

[3] Officials said investigators were focusing on the possibility of a technical malfunction as an eyewitness reported seeing smoke coming from the plane's engines as it came down.

Immediately after flap retraction, the plane began exhibiting unusual behavior, though the crew seemed to have trouble identifying the problem, with the first officer sounding increasingly stressed as the situation developed.

An engineering simulation concluded that the airplane was not contaminated enough by ice as to be unrecoverable; had the crew applied forward pressure on the control column and extended the flaps back to 15 degrees, the plane would have recovered after losing just 300–400 feet (90–120 m) of their pre-stall altitude.

[5][failed verification] In November 2015, the court sentenced mechanic Andrey Pisarev and maintenance manager Anatoly Petrochenko to five years and one month in prison.