Date & Time: Sep 16, 1964 at 1645 LT
Type of aircraft:
Kiev - Kiev
Crew on board:
Pax on board:
The crew (pilots, technicians and engineers) were involved in a local test flight at Kiev-Gostomel Airport. The goal of the mission was to test the JATO propulsion system in case of an engine failure on the Antonov AN-8. For this test program, the aircraft was renamed AN-8RU version. Twenty seconds after takeoff, while climbing to a speed of 220 km/h, the JATO system was ignited. Six seconds later, once the speed of 264 km/h was reached, the left engine was voluntarily shut down. At this time, the crew was unable to feather the propeller that went into auto-rotation. The airplane banked left to a 70-80° angle then dove into the ground and crashed in a field located 1,850 meters past the runway end. The aircraft was totally destroyed and all seven crew members were killed.
The exact cause of the accident could not be determined with certainty. However, the crew encountered difficulties, was unable to and/or forgot to feather the propeller on the left engine. This caused an asymmetric thrust and high drag which caused the aircraft to be uncontrollable and to crash.