On July 1, 1947, an Ilyushin II-12 (registration CCCP-L1317) operated by Aeroflot - Russian International Airlines was involved in an aviation accident near Moscow-Vnukovo, Russia during takeoff. 4 people were killed. Investigators recorded the probable cause as: The accident was attributed to the failure of the left engine, which was caused by a defective valve. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 4 related events involving the same aircraft type or operator are linked below.
An aircraft crashed into trees shortly after departure when it lost speed and altitude during climb-out. The incident resulted in four fatalities and two serious injuries among the occupants.
What happened
The accident occurred approximately one minute after the aircraft departed the airport. While climbing at an altitude of roughly 50 metres, the machine began to bank left, reaching an angle of 30 degrees. During this maneuver, the aircraft experienced a loss of both airspeed and vertical lift. Unable to maintain flight, it descended and struck treetops before impacting the ground in a wooded area situated about 3 km from the departure point.
The collision resulted in significant casualties. Four crew members lost their lives in the crash. A fifth member of the crew and one passenger sustained serious injuries as a result of the impact.
Probable cause
The accident was attributed to the failure of the left engine, which was caused by a defective valve.
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