Ilyushin II-12 accident at Donetsk, Ukraine, 19 Jan 1949 (CCCP-L1381)
On January 19, 1949, an Ilyushin II-12 (registration CCCP-L1381) operated by Aeroflot - Russian International Airlines was involved in an aviation accident near Donetsk, Ukraine during takeoff. 10 people were killed. Investigators recorded the probable cause as: It was determined that the right engine oversped due a structural shortcoming of the screw regulator. Regarding the loss of power on the left engine, it was not possible to determine its cause due to the fact that the engine was totally destroyed by fire. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 2 related events involving the same aircraft type or operator are linked below.
Probable cause
It was determined that the right engine oversped due a structural shortcoming of the screw regulator. Regarding the loss of power on the left engine, it was not possible to determine its cause due to the fact that the engine was totally destroyed by fire. An unappropriated reaction of the crew to the double engine dysfunction was considered as a contributory factor.
— NTSB Determination
Accident narrative
Shortly after takeoff from Stalino Airport, while climbing to a height of 90 meters, the right engine oversped while the left engine lost power. The aircraft stalled, hit an electric pole and crashed in flames onto a house located near the airport. A crew member was seriously injured while all eight other occupants were killed as well as two people in the house. The aircraft was destroyed by impact forces and a post crash fire.
Probable cause (official findings): It was determined that the right engine oversped due a structural shortcoming of the screw regulator. Regarding the loss of power on the left engine, it was not possible to determine its cause due to the fact that the engine was totally destroyed by fire. An unappropriated reaction of the crew to the double engine dysfunction was considered as a contributory factor.