What happened
During the landing phase, the undercarriage failed to remain extended. As the aircraft made contact with the runway surface, the landing gear collapsed, causing the fuselage to strike the ground directly. The machine subsequently skidded along its belly until it came to a complete stop. While the structural damage was severe enough to render the airframe beyond repair, there were no casualties reported among those on board.
Findings
The official investigation determined that the primary factor leading to the accident was a mechanical configuration error. Specifically, the landing gear had not been locked in the down position prior to touchdown. This failure of the locking mechanism resulted in the collapse of the undercarriage upon impact with the runway.