NEW : Resigned and tried to improve safety record of FAA . The FAA is looking for a new chief of air traffic control . The FAA is trying to reduce ` ` unprofessional conduct '' `` We are conducting a top-to-bottom review of the way we operate our air traffic control system , '' Babbitt said `` We are all responsible and accountable for safety -- from senior FAA leadership to the controller in the tower . The FAA is placing an extra overnight shift controller at several airports .
NEW : Resigned and tried to improve safety record of FAA . The FAA is looking for a new chief of air traffic control . The FAA is trying to reduce ` ` unprofessional conduct '' The FAA is placing an extra overnight shift controller at several airports .