The mass-production model of Russia’s flagship MC-21 passenger jet has completed its first test flight, its manufacturer, the United Aircraft Corporation, said on Monday, days after President Vladimir Putin made a surprise visit to the company’s assembly facility in Siberia.

The mass-production model of Russia’s flagship MC-21 passenger jet has completed its first test flight, its manufacturer, the United Aircraft Corporation, said on Monday, days…

The aircraft was piloted by a crew of experienced test pilots