What happened
During the takeoff phase of the flight, the aircraft completed a standard takeoff roll and reached a rotation speed of 178 km/h. Shortly after entering the initial climb, the right wing experienced a significant drop to an angle of 30 degrees. Although the crew attempted to correct the aircraft's attitude using the ailerons, the plane continued its descent.
The descending aircraft struck a snow wall measuring approximately 1.5 meters in height before coming to a stop in a field covered in snow. The impact resulted in the loss of the undercarriage. While the 12 passengers on board were able to evacuate without any injuries, the five crew members sustained minor injuries. The aircraft was determined to be a total loss due to damage beyond repair.
Findings
Investigators were unable to determine the specific reason for the sudden drop of the right wing. While it was confirmed that the takeoff speed used by the pilot was appropriate, the exact cause of the aerodynamic instability remains unidentified.