Sofema Aviation Services (SAS) www.sassofia.com considers the Maintenance Annex Guidance Procedures (MAG change 8) related to Air Carrier Obligations.

Definitions

Part 121 carrier is a regularly scheduled air carrier. Typically large, U.S.-based airlines, regional air carriers, and cargo carriers operating under 14 CFR Part 121 must be certified as such through the Federal Aviation Administration (FAA).