American Airlines deal boosts Airbus's new long-range jet

American Airlines is buying 50 new long-range planes from Airbus, giving a big boost to the just-launched A321XLR model and spurring Boeing to push ahead to develop a rival aircraft.Airbus and the American Airlines — the world's largest carrier — announced the deal Wednesday at the Paris Air Show, upgrading a previous order for A321neo jets to the A321XLR.Airbus launched the A321XLR program on Monday, a long-range version of its popular single-aisle A320 range, and has already signed