The first production-ready MC-21-310 has successfully completed its maiden flight, according to AeroTime. The aircraft, manufactured by the United Aircraft Corporation (UAC), departed from the company’s assembly facility in Irkutsk, Siberia, on August 3, 2026. The flight test lasted for a total duration of one hour and 23 minutes.

During this inaugural assessment, the aircraft reached a maximum altitude of 6,000 meters (19,685 feet) and attained speeds of 600 kilometers per hour (372 miles per hour). This flight occurs shortly after an official visit to the Irkutsk Aviation Plant by Russian President Vladimir Putin on July 24, 2026, aimed at inspecting progress on the assembly line.

### Flight and Technical Specifications

| Parameter | Value | | :--- | :--- | | Maiden Flight Date | August 3, 2026 | | Flight Duration | 1 hour 23 minutes | | Maximum Altitude | 6,000 meters (19,685 feet) | | Maximum Speed | 600 kilometers per hour (372 miles per hour) | | Propulsion System | PD-14 engines |

The MC-21 program was originally launched in 2009. The baseline version, the MC-21-300, was designed with a heavy reliance on Western technology, notably utilizing Pratt & Whitney PW1400G engines. However, following the 2014 annexation of Crimea and the subsequent international sanctions, Russian state strategy shifted toward import substitution. This policy accelerated significantly after February 2022, when global aerospace supply chains were restricted due to the invasion of Ukraine. Consequently, the MC-21-310 was developed to utilize domestically manufactured components and Russian-made PD-14 engines.

While the program has faced recurring delays since its inception, progress continues at the Irkutsk plant. Officials at UAC have indicated that there are currently 18 MC-21-310 airframes in varying stages of completion. The aircraft remains in the certification phase as of August 2026.

## Why It Matters

The completion of this flight signals a shift toward complete industrial autonomy for the Russian commercial aviation sector. By replacing Western turbofans with the domestic PD-14 engine, UAC is attempting to mitigate the impact of international export controls. However, the move away from global supply chains poses long-term challenges regarding maintenance, repair, and overhaul (MRO) efficiency. The industry will watch closely to see if Russia can achieve the scale and safety certification standards required to compete with the A320 and 737, or if the program will remain constrained by domestic logistical bottlenecks.