What happened
During a flight at an altitude of 3,000 meters, the aircraft encountered deteriorating weather conditions as it passed through a thunderstorm. The onset of intense turbulence caused significant vibrations affecting both the wings and the elevators. During this period of extreme instability, the crew lost control of the aircraft, resulting in a high-speed dive toward the earth.
The flight ended when the plane struck a field. There were no survivors in the accident, with a total of 21 fatalities recorded among the occupants. The crew on board included the pilot, co-pilot, a radio operator, and a flight engineer.
Findings
Investigation into the event indicates that the primary factor leading to the crash was the severe turbulence encountered within a thunderstorm, which induced heavy vibrations in the control surfaces and ultimately led to the loss of aerodynamic control.