Investigation Summary
The disaster began while the aircraft was cruising at 7,200 meters. A fire ignited in the second cargo compartment, which was located beneath the passenger cabin. As the fire intensified, smoke entered the main cabin and eventually the cockpit. The crew initiated an emergency descent and requested a diversion to Magnitogorsk. During the descent, the situation deteriorated rapidly as the smoke became so dense that the pilots could no longer see their instruments or maintain visual contact with the ground. In a desperate attempt to escape the smoke, passengers reportedly moved toward the front of the aircraft, shifting the center of gravity and complicating the flight dynamics. The aircraft exhibited erratic behavior, including significant bank angles and altitude fluctuations. In the final moments, the crew reported that the smoke in the cockpit was 'very bad' before radioing a final 'Goodbye.' The aircraft struck a plowed field at approximately 370 km/h with the landing gear and flaps retracted.
Final Conclusions
The primary cause of the accident was an intensive fire in the rear cargo hold that led to the incapacitation of the crew and passengers due to smoke inhalation. The fire rendered visual flight and instrument monitoring impossible. The most likely source of the fire was the ignition of pyrotechnic devices or flammable materials contained within passenger baggage, traces of which were recovered from the wreckage.
Video Analysis
No video analysis linked for this case file yet.
Airframe & Maintenance
Crew Experience
Captain
Vladimir Ishutin
Copilot
Vyacheslav Tichotsky
Systems & Failure Modes
Cargo Compartment
The site of the initial fire, which lacked modern fire suppression systems capable of containing a pyrotechnic-fueled blaze.
Cockpit Ventilation
The smoke from the cargo hold successfully penetrated the cockpit, blinding the crew and causing respiratory failure.
Interesting Facts
- 01All passengers died from smoke inhalation prior to the impact; the cockpit crew remained conscious longer but were severely affected by toxic smoke and blinded before the crash.
- 02The aircraft was originally delivered to Air Mali in 1962 before being transferred to Aeroflot in 1971.
- 03The fire was traced to the rear cargo hold (second compartment) where passenger baggage was stored.
- 04The flight was monitored by an official from the Ministry of Interior who was among the fatalities.
Safety Actions & Advisories
Baggage Screening Improvements
The accident highlighted the danger of flammable and pyrotechnic materials in checked baggage, leading to stricter Soviet regulations regarding the transport of dangerous goods on passenger flights.