What happened
During a local training mission operating out of Hradec Králové Airport, a flight crew consisting of two pilots, a radio operator, and an instructor experienced a mechanical failure. While the aircraft was maintaining an altitude of approximately 2 lack 200 meters, the left engine ceased functioning properly.
In response to the loss of power, the crew attempted to execute an emergency landing at the airfield. During the final right-hand turn intended to align with the runway, the aircraft type experienced a stall. The aircraft subsequently impacted a field situated in Rusek, which lies to the east of the airport.
The accident resulted in three fatalities and one individual, the radio operator, sustained serious injuries.
Findings
Investigations into the crash determined that the primary factor was the failure of the left engine. This loss of power was specifically attributed to a malfunction of the spark plugs.