On 21 December 2009, the An-148 was put into service in Russia with Rossiya airline. The first passenger flight was FV135 from Pulkovo Airport in Saint Petersburg to Sheremetyevo International Airport in Moscow. By 20 May 2010, Rossiya's An-148 fleet had accumulated a total of 915 flight hours and performed 710 landings. Rossiya complained that the aircraft experienced some reliability problems. There were some technical problems with the aircraft, and pilot training could not be ramped up fast enough, leading to pilot shortages. However, by 2011 the situation had improved.