What happened
During the takeoff roll, the aircraft traveled 430 meters over a period of 26 seconds. Upon reaching a speed of 120 km/h, the pilot-in-command began the rotation. The flight progressed into a climb, but at an altitude of approximately 10 meters, the left engine experienced a failure.
The aircraft maintained its ascent until it reached 50 meters above the ground. At this stage, the plane entered a steep left bank of 80 degrees. This maneuver led to an aerodynamic stall, causing the aircraft to impact the ground near the end of the runway at a speed of 170 km/h. The accident resulted in three fatalities among the crew members, while all six passengers sustained injuries.
Findings
Investigation into the engine failure revealed that the malfunction originated from the failure of the valve in the ninth cylinder. Additionally, it was determined that an improper response by the crew led to a critical drop in airspeed, which triggered the stall and subsequent crash.
Several contributing factors were identified, including inadequate flight organization and insufficient supervision regarding crew training. Furthermore, the decision by the captain to proceed with the takeoff without a flight engineer on board was noted as a significant factor in the accident.