Rusdi Kirana (left), CEO of Lion Air, and Fabrice Bregier (right), CEO of Airbus, pose with an Airbus A320 model while French President Francois Hollande stands behind during a contract-signing ceremony at the Elysee Palace in Paris on Monday, March 18, 2013. Indonesian carrier Lion Air is to buy 234 short- to medium-range aircraft from Airbus for 18.4 billion euros ($24 billion) in what is being billed as the biggest civilian deal in the history of the aircraft manufacturer. (AP Photo/Michel Euler)

Photo by: Michel Euler

Rusdi Kirana (left), CEO of Lion Air, and Fabrice Bregier (right), CEO of Airbus, pose with an Airbus A320 model while French President Francois Hollande stands behind during a contract-signing ceremony at the Elysee Palace in Paris on Monday, March 18, 2013. Indonesian carrier Lion Air is to buy 234 short- to medium-range aircraft from Airbus for 18.4 billion euros ($24 billion) in what is being billed as the biggest civilian deal in the history of the aircraft manufacturer. (AP Photo/Michel Euler)