The Aviation Maintenance Technician Handbook—Airframe (FAA-H-8083-31) is one of a series of three handbooks for persons preparing for certification as an airframe or powerplant mechanic. It is intended that this handbook provide the basic information on principles, fundamentals, and technical procedures in the subject matter areas relating to the airframe rating. NOTE: AC 65-15A Airframe and Powerplant Mechanics Airframe Handbook IS CURRENT UNTIL MAY 31, 2012. AFTER THIS DATE, THE AC WILL BE SUPERSEDED BY THIS HANDBOOK Volume 2.