Service announced on 17 November that it was a terrorist attack, caused by an improvised bomb containing the equivalent of up to 1 kilogram (2.2 lb) of TNT that detonated during the flight. The Russians said they had found explosive residue as evidence. This air crash was named as the biggest and the most fatal in the history of the airline, Russian and Soviet aviation; and the Airbus A320 family's history. 5 November 2015: Flight 9267 suffered a collapse of its nose gear following an incident during pushback at Saint Petersburg Airport in Russia. The flight was operated by EI-ETL, an Airbus A321-200. References External links (in Russian) Defunct airlines of Russia Airlines established in 1993 Airlines disestablished in 2015 1993 establishments in Russia Companies based in Khanty-Mansi Autonomous Okrug Defunct charter airlines