Mike Busch discusses the complex subject of alterations to certificated aircraft. He describes the difference between major and minor alterations, and the vastly different approval requirements for each. Savvy Aviation offers Professional Maintenance Services to owners of General Aviation aircraft, such as: Savvy Mx (Professional Maintenance Management), Savvy QA (Expert Consulting), Savvy Prebuy, SavvyAnalysis (Engine Data Analysis) and Savvy Breakdown Assistance. For more info see https://savvyaviation.com and http://www.sportys.com/pilotshop/sporty-s-breakdown-assistance-program.html. This channel offers videos about those services, and webinars hosted by Mike Busch which were produced by the Experimental Aircraft Association (EAA) and sponsored by Aircraft Spruce and Specialty.