The fifth prototype of the prospective 5th - generation aviation complex (PAK FA,  T-50) made its maiden flight in Komsomolsk-on-Amur at the Y.A.Gagarin KnAAZ aircraft plant of the Sukhoi Company. The plane was piloted by distinguished test pilot of the 1st  class Roman Kondratiev. The fighter aircraft spent 50 minutes in the air and landed safely on the factory airfield runway. The test flight was a success and in full accordance with the flight plan. The stability of the aircraft and the propulsion system were tested during the flight. The aircraft performed well in all phases of the planned flight program. The pilot confirmed reliability of all systems and equipment.
Upon completing the test flights program in Komsomolsk the aircraft will join the flight tests in the city of Zhukovsky near Moscow. Four 5th – generation fighter aircraft have already joined these tests. Two more planes are involved in ground tests - one as a complex ground stand and the other undergoes static tests.
The first flight of the PAK FA took place on January 29, 2010 in Komsomolsk-on-Amur. Currently work is underway on the full range of ground and flight tests. To date, more than 450 flights were carried out under the flight test program.