By ANDY PASZTOR
Federal aviation regulators as early as Monday are expected to propose a
nearly $2.5 million civil penalty against the commuter unit of AMR Corp.'s
American Airlines Inc. for allegedly using incorrect takeoff weights on more
than 150 flights, according to people familiar with the details.
Such missteps can result in safety hazards during takeoffs and landings-
particularly in windy or wet conditions-if pilots rely on incorrect weight
information to come up with appropriate speeds
