NEW : American Airlines says 570 flights will be canceled Friday . Passengers scheduled to fly on an American Airlines MD-80 between Tuesday and Friday can receive a full refund or apply the value of their ticket to a future flight , the airline said . `` I am profoundly sorry , '' chief executive of American says . American Airlines expects all of its MD-80 jets to be flight-worthy by Thursday night . Alaska Airlines , American cancel flights Saturday for safety checks .
NEW : American Airlines says 570 flights will be canceled Friday . `` I am profoundly sorry , '' chief executive of American says . American Airlines expects all of its MD-80 jets to be flight-worthy by Thursday night . Alaska Airlines , American cancel flights Saturday for safety checks .