Russian authorities have suspended the license of a Moscow-based airline RusAir after last month's plane crash that killed 47 people. Russian federal aviation authority spokesman Sergei Izvolsky said RusAir's operation license has been suspended due to violations revealed during an investigation.On June 21, a RusAir's passenger plane with 52 people on board crash-landed in Russia's northern republic of Karelie. The fuselage was totally destroyed and caught fire as the plane was trying to land on a highway near the airport in heavy fog. According to investigators, pilot error was to blame for the crash.