An Antonov An-24 passenger plane carrying 48 people crashed in Russia's far east on Thursday as it was preparing to land, killing everyone on board in an incident that spotlighted the continued use of old, Soviet-era aircraft.

The burning fuselage of the plane, which was made in 1976, was spotted by a search helicopter after it disappeared from radar screens. It had been attempting to land for a second time after failing to touch down on its first approach, the Far Eastern Transport Prosecutor’s Office said in a statement.

Operated by the privately owned Siberian regional airline Angara, it had been en route from the city of Blagoveshchensk near the Chinese border to Tynda, an important railway junction in the Amur region. It was carrying 42 passengers, including five children, and six crew.