U.S. ITC rejects Boeing injury claims on Bombardier

WASHINGTON/MONTREAL (Reuters) - Canada's Bombardier Inc on Friday won an unexpected trade victory against U.S. planemaker Boeing Co , after a U.S. agency rejected imposing hefty duties on sales of Bombardier's new CSeries jet to American carriers.

The U.S. International Trade Commission voted 4-0 to reject Boeing's claims that it suffered injury in the case, and discarded a Commerce Department recommendation to slap a near 300 percent duty on sales of the 110-to-130-seat CSeries jets for five years.

The ITC had widely been expected to side with Chicago-based Boeing, the world's largest maker of jetliners, which accused Bombardier of dumping the planes, or selling them below cost, in the U.S. market.

(Reporting by David Shepardson, Lesley Wroughton and Allison Lampert; editing by G Crosse)