Angara Airlines, based in Irkutsk, has launched new flights from Novosibirsk to Irkutsk and diamond-mining Mirny in the Sakha Republic.
A helicopter carrying ammonite - used to break ice - crashed in Irkutsk region after 'exploding in mid air'.
Angara Airlines An-24 loses one engine then hits sewage treatment works and bursts into flames after crew lost control.
All on board safe after An-148 jet returns to Talakan Airport soon after takeoff.
The London-Beijing flight with 270 passengers and 16 crew landed in Irkutsk, Eastern Siberia, at 10.41 local time on Wednesday.