Soviet-built Antonov An-24 turboprop airliners should be permanently grounded, President Dmitry Medvedev said on Monday after an An-24 ditched in the western Siberian Ob river in Russia, killing five on board. The Angara airlines An-24 with 36 people on board ditched on the Ob about 14 kilometers from the town of Strezhevoy in Tomsk region […]