Russia's leasing company Ilyushin Finance, or IFC, signed Wednesday a letter of intent with Canada's Bombardier Inc. to(BBD.B.T) to purchase 10 of its new C Series narrow bodied airplanes, three CS100 and seven CS300.

IFC has also taken an option for another 10 C Series planes.

The company didn't disclose financial details of the deal.

-By Alexander Kolyandr, Dow Jones Newswires; alexander.kolyandr@dowjones.com