AC 43.13-2A, ADVISORY CIRCULAR, ACCEPTABLE METHODS, TECHNIQUES, AND PRACTICES - AIRCRAFT ALTERATIONS [REV. 1977 W/ CHANGE 2 (10/30/89)]

AC 43.13-2A, ADVISORY CIRCULAR, ACCEPTABLE METHODS, TECHNIQUES, AND PRACTICES - AIRCRAFT ALTERATIONS [REV. 1977 W/ CHANGE 2 (10/30/89)]., This advisory circular contains methods, techniques, and practices acceptable to the Administrator for use in civil aircraft.