What happened
The incident occurred during a local training flight departing from Prague-Kbely. The mission was intended to prepare the crew for participation in the first 'Air Speed Race'. At the time of the accident, the aircraft carried a total of eight people on board: two crew members and six soldiers.
Shortly after takeoff, while the aircraft was still in the climbing phase, it entered an uncontrolled descent. The plane subsequently impacted the ground in an open field. Despite the severity of the impact, all eight occupants managed to evacuate the wreckage. Each person sustained minor injuries, while the aircraft itself was destroyed.
Findings
The source material does not provide specific technical findings or a detailed investigation report regarding the mechanical or human factors that led to the uncontrolled descent. The event is recorded as a crash resulting from loss of control during the initial climb following departure.