. "CAA" . . . "Civil Aeronautics Board" . "1938" . "1985" . "Civil Aeronautics Board" . "Bureau of Air Commerce" . "1939" . . "Civil Aeronautics Board" . . . . . . "US Civil Aeronautics Board" . "CAB" . "Civil Aeronautics Authority" . . . . "Civil Aeronautics Board (CAB)" . . . . "Civil Aeronautics Administration" . . "U.S. Civil Aeronautics Board" . . . . "Civil Aeronautics" . . "United States Civil Aeronautics Authority" . . "Head of Civil Aeronautics Board" . . . . "Federal Civil Aeronautics Administration" . .