By Jamie Freed, Alexander Cornwell and Tim Hepher (Reuters) -Aircraft leasing firms are set to terminate hundreds of leases with Russian airlines following Western sanctions over the invasion of Ukraine https://www.reuters.com/world/europe/russias-isolation-deepens-ukraine-resists-invasion-2022-02-28 that give the sector a month to act. Dublin-based AerCap, the world’s biggest aircraft leasing company, saw its New York-listed shares tumble 12.7% after it said it would cease leasing activity with Russian carriers, while U.S.-based Air Lease fell almost 8%. Russian airlines have 980 passenger je…