Baker's School of Aeronautics offers Airframe and Powerplant FAA exam preparation for written and oral and practical. Inspection Authorization course to prepare A&P technicians for their FAA Inspection Authorization exam. Classes offered every week. For more information call (800) 264-1787 or email [email protected]. Hours: 7:30 a.m. to 4:30 p.m. CST Monday to Saturday.