This is the peer reviewed, corrected, and most accurate edition of FAA 8083-30a Airframe and Powerplant Mechanics General Handbook. It is the official FAA required curricula for your A&P license and the actual source from which all FAA knowledge test questions are derived. However, while FAA did a terrific job with the development of this handbook, many technical errors were overlooked. This peer reviewed ATB edition corrects over 100 of these mistakes which were identified by Aircraft Technical Book Company's review team from many Part 147 A&P schools including Spartan College, San Diego Miramar College, Pittsburgh Institute of Aeronautics, Robert C. Byrd Aerospace Center, and others. These types of corrections include numerous math errors, that MS fittings are correctly colored green (not blue), and that modern aircraft deicer boots are attached via bonding (not riveting). A complete correction log is included in the book to identify these updates. This book was developed as the first of three volumes for persons preparing for A&P mechanic certification. This General Handbook covers workshop and flightline procedures, FAA regulations, mathematics, physics, aircraft drawings, weight and balance, aircraft materials, tools and hardware, corrosion control, electricity, inspection, and human factors. Aircraft Technical Book Company offers additional support for this General Handbook and the Airframe and Powerplant Handbooks; including matching test guides and workbooks for students and image banks for instructors who teach with this series.