The Russian Defense Ministry's Tu-154 crashed near Sochi was thoroughly repaired in 2014, by the manufacturing factory "Aviacor".
It was the third overhaul maintenance stipulated by the contract for routine aircraft maintenance.
Within the last two years no claims regarding the repair works have been received from the operator, the press service of the "Russian Machines" corporation wrote.
The Tu-154 N 85572 was produced on March 29, 1983 , by the manufacturing factory Komsomolsk-on-Amur aviation production association (current " Aviacor aircraft plant ").
The Tu-154, a medium-haul trijet airliner (NATO reporting name Careless) was designed in the mid-1960's and entered service in 1970. Around 1,000 were built over four decades.
The design has been the workhorse of Soviet and Russian airlines, carrying around half of Aeroflot's passengers during the Soviet era. The aircraft was sold to and operated by about 17 non-Russian airlines. With a cruising speed of 975 km/h (620 mph), the Tu-154 was one of the fastest civilian aircraft in operation and had a range of 5,280 km (3,340 miles). With a service life of 45,000 hours, but capable of 80,000 with upgrades, the aircraft was expected to last until 2016, although noise restrictions have seen services to Western Europe and other areas banned in recent years for all but modified variants on certain routes.