RuAviation

The fully import-substituted MC-21-310 aircraft, tail number 73057, has been transferred to the Flight Test Division (FTD) of the Irkutsk Aviation Plant (IAZ). This was announced by the United Aircraft Corporation (UAC) via its official Telegram channel.

Specialists from Yakovlev PJSC and IAZ will conduct a comprehensive inspection of the fuel system, initiate and test the auxiliary power unit (APU), and perform engine runs. They will also evaluate the aircraft’s systems and onboard equipment with the engines operating.

The aircraft underwent extensive modifications as part of Russia’s import substitution program. It is now equipped with Russian-made PD-14 engines, replacing the previously used Pratt & Whitney PW1400G engines. For the first time, all cockpit controls and panels on board 73057 are entirely domestically produced. The following components have also been replaced:

– Flight control actuators
– Wing high-lift system
– Engine and slat pylons
– Horizontal stabilizer trim mechanisms
– Integrated avionics suite
– Auxiliary power unit (APU)
– Air conditioning system
– Integrated flight data acquisition and recording system
– Wheel braking system
– Fuel system
– Wheels and tires
– Wiring and electrical power distribution system

In August, aircraft 73057 completed ground frequency tests, which assessed the performance of the electrical power supply, hydraulic systems, integrated flight control system, landing gear, and avionics. The response of various components to vibrations of different frequencies was analyzed, with particular attention given to the integrated flight control system and landing gear. The tests confirmed the operability of the domestically produced integrated systems.

Earlier, in June, a Russian-manufactured passenger cabin interior was installed on this aircraft. The airliner was fitted with overhead bins, window and ceiling panels, galley and lavatory modules. The installation also included wardrobes, partitions, curtains, door linings and trims, as well as business class seats. UAC noted that mass production of domestic interior components will commence following the completion of testing and certification to technical standards.

Upon completion of the acceptance process at the Irkutsk Aviation Plant’s Flight Test Division, engineers and test crews will proceed with ground testing. The Yakovlev Flight Test and Development Complex team is already present at IAZ.