Just one? Ok.
"It seems to me it was a series of people taking shortcuts that accumulated on this particular day into what could have been much more catastrophic," said safety board member Kitty Higgins.
This article also has this:
Last August, FAA said it would fine American $7.1 million for continuing to fly airliners after safety problems were reported and for drug-testing violations. FAA said the Texas-based airline delayed repairs on two MD-80s -- a mid-sized airliner -- after problems were reported with their autopilot systems and flew them 58 times in violations of federal regulations. The airline is negotiating the fine with the agency.
http://blog.cleveland.com/business/2009/04/american_airlines_faulted_in_m.html