Accident
A cargo flight en route from Kazan to Kuybyshev experienced an in-flight fire while cruising at an altitude of 5,100 meters. The crew informed air traffic control about a fire in the center of the cabin and declared an emergency. They initiated an emergency descent. During the descent, the aircraft partially disintegrated and crashed in an open field near the settlement of Bazarnye Mataki. All four occupants on board were killed.
Emergency Descent
After reporting the fire, the crew began an emergency descent. The aircraft's structure failed under aerodynamic forces, leading to partial disintegration before impact. The wreckage was scattered across the field.
Occupants
The flight carried four occupants. None survived the crash.
Investigation
Investigators examined the wreckage and conducted analyses of fuel feed systems, fuel hoses, and electrical cables, but found no anomalies. The exact cause of the accident and the in-flight fire could not be determined with certainty. The partial disintegration during the emergency descent was attributed to aerodynamic forces that exceeded the aircraft's certification limits.