The third Yak-130M test aircraft completed its first flight United Aircraft Corporation (UAC) announced the first flight of the third Yak-130M test aircraft at the Irkutsk Aviation Plant (IAZ, a branch of PJSC Yakovlev, part of the UAC Rostec state corporation). "All systems worked as expected, the flight mission was fully completed," the UAC statement said. "This is a special flight, it is significant for us, because the third plane is somewhat different from the first and second, it has the technical appearance of a production plane.