What happened
The aircraft was on a ferry mission from Efremov to Kirsanov for scheduled maintenance. The crew, consisting of a pilot and a copilot/navigator, deviated from the planned route to make an unauthorized stop at the village of Ekaterinino. During this unscheduled halt, the copilot conducted a short local flight with a passenger. Subsequently, the pilot took off with another individual on board for a second local circuit.
While performing an aerobatic maneuver, specifically a loop at an altitude of approximately 250 to 300 meters, the aircraft descended too low to recover. The airplane impacted the ground and crashed into a field. Both occupants were killed in the impact.