The Aviation Maintenance Technician Handbook–Powerplant (FAA-H-8083-32) is one of a series of three handbooks for persons preparing for certification as a 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 powerplant rating. NOTE: AC 65-12A Airframe and Powerplant Mechanics Powerplant Handbook IS CURRENT UNTIL MAY 31, 2012. AFTER THIS DATE, THE AC WILL BE SUPERSEDED BY THIS HANDBOOK Volume 1.