Aviation Maintenance Technician Handbook – Powerplant Volume 1  (FAA-H-8083-32A) was developed as one of a series of five handbooks for persons preparing for mechanic certification with airframe and powerplant ratings, or both. This handbook will provide basic information on principles, fundamentals, and technical procedures in the subject matter areas common to the powerplant rating. This book was superseded by FAA-H-8083-32B.