Maintenance Annex Guidance Review by Sofema Aviation Services (SAS) www.sassofia.com. Introduction The Maintenance Annex Guidance (MAG) defines the procedures and activities of the Federal Aviation Administration (FAA), the European Union Aviation Safety Agency (EASA), and the Aviation Authorities (AA) to implement the Maintenance Annex. What’s in Change 9? Change 9 to the U.S.-EU MAG introduces…

