American Airlines, Inc. (AA) is a major United States airline. It operates an extensive international and U.S. domestic network, with scheduled flights throughout North America, the Caribbean, South America, Europe, and Asia. Its route network centers on five hubs at Dallas/Fort Worth, John F. Kennedy International Airport in New York, Los Angeles, Miami, and O'Hare International Airport in Chicago. Its primary maintenance base is located at Tulsa International Airport (TUL). The company is headquartered in Fort Worth, Texas. American Airlines is a member airline of the Oneworld airline alliance, and coordinates fares, services, and scheduling with British Airways, Finnair, and Iberia in the transatlantic market and with Japan Airlines and Qantas in the transpacific market. Envoy Air, SkyWest, Inc., Republic Airways Holdings, SkyWest Airlines, and ExpressJet Airlines operate regional flights for American Airlines under the American Eagle brand. The former parent company of American Airlines, AMR Corporation, filed for Chapter 11 bankruptcy protection in November 2011, and in February 2013 announced plans to merge with US Airways Group, creating the largest airline in the world. AMR and US Airways Group completed the merger on December 9, 2013, with the new holding company American Airlines Group, Inc. being listed on NASDAQ that day, although the actual integration of the airlines under a single air operator's certificate will not be completed until a much later date. The combined airline will carry the American Airlines name and branding, and will maintain the existing US Airways hubs in Charlotte, Philadelphia, Phoenix, and Washington D.C. for a period of at least five years under the terms of a settlement with the US Department of Justice and several state attorneys-general.
The 767-300, the first stretched version of the aircraft, entered service with Japan Airlines in 1986. The type features a 21.1-foot (6.43 m) fuselage extension over the 767-200, achieved by additional sections inserted before and after the wings, for an overall length of 180.25 feet (54.9 m). Reflecting the growth potential built into the original 767 design, the wings, engines, and most systems were largely unchanged on the 767-300. An optional mid-cabin exit door is positioned ahead of the wings on the left, while more powerful Pratt & Whitney PW4000 and Rolls-Royce RB211 engines later became available. The 767-300's increased capacity has been used on high-density routes within Asia and Europe. Deliveries for the type totaled 104 aircraft with no unfilled orders remaining. As of July 2013, 59 of the variant were in airline service. The type's main competitor was the Airbus A300.