The Federal Aviation Administration has proposed a $24.2 million fine on American Airlines, prompting executives from the carrier to announce that they will fight the charge. The fine stems from maintenance issues that caused the airline to ground its MD-80 fleet in 2008, leading to the cancellation of some 3,300 flights. "These events happened more than two years ago, and we believe this action is unwarranted," American said in a statement. "We plan to follow the FAA's process and will challenge any proposed civil penalty. We are confident we have a strong case, and the facts will bear this out." The company also emphasized "there was never a safety of flight issue surrounding these circumstances," and the FAA acknowledged that American "ultimately completed the work required."