FILE - In this Nov. 29, 2011 file photo, American Airlines (AMR) President and CEO Thomas W. Horton speaks at a news conference at the Dallas-Fort Worth Airport in Dallas. The head of American Airlines said Tuesday, July 10, 2012, it's time to reach out to potential merger partners or investors, seven months into a bankruptcy restructuring. CEO Thomas Horton said that American has improved its revenue, made progress on cost-cutting labor deals, and is well on its way to a successful restructuring. (AP Photo/Richard W. Rodriguez, File)