The aircraft made a very heavy landing and broke apart, after a poorly executed approach by an inexperienced co-pilot.
Aircraft
The accident aircraft was a Tupolev Tu-154B-1 operated by Aeroflot, registered as CCCP-85254, which was first flown in 1977 and had a total of 15859 flying hours accumulated over 8082 cycles.
Investigation
The investigation found the aircraft to be serviceable at the time of the crash with no significant faults. The crew came under the spotlight and were found to be seriously lacking in crew resource management and skills to carry out a challenging approach. The Pilot in Charge allowed an inexperienced co-pilot to carry out the approach without close supervision, which resulted in an unstable approach and very heavy landing estimated at 4.8g. The aircraft's tail broke off and 11 passengers were thrown from the fuselage and killed.