On 26 December 2013, an Irkut-Avia Antonov An-12 operating a domestic cargo flight in Russia from Yeltsovka Airport, Novosibirsk, crashed on approach to its destination, Irkutsk Northwest Airport, Irkutsk. All nine people on board, six crew members and three passengers, were killed in the accident. The accident has been found to have been caused mainly by pilot error, even though later inquiries suggested that a failure of the engine number two might have been the main factor that led to the crash.