Bruce Hales-Dutton explains how American Airlines battled from bankruptcy to success.

American Airlines has an extensive long-haul network in which the Boeing 777 plays an important part.
AirTeamImages.com/Steve Flint
The turnaround of American Airlines is nothing short of remarkable. In four years it has gone from bankruptcy to a business success story. It is on its way, the company says, to becoming the “greatest airline in the world”.