Moscow, March 3. Today the first flight of the 2nd prototype of the fifth generation aviation complex (PAK FA) took place in Komsomolsk - on - Amur. The plane was piloted by distinguished test pilot of the Russian Federation Sergey Bogdan. The aircraft spent in the air 44 minutes and landed on the factory airfield runway. The flight was successful, in full accordance with the flight plan. Stability of the aircraft test was conducted during the flight as well as evaluation of the power plant systems’ performance. The aircraft proved itself well in all phases of the planned flight program.