MSG 3 Aircraft Inspection Considerations – Introduction by Sofema Aviation Services (SAS) www.sassofia.com What is MSG 3 MSG stands for Maintenance Steering Group (3 is the 3rd version of the process and has been around since 1980). It provides a process which is used for developing scheduled maintenance tasks and intervals, which will be acceptable to the…

The  Industry Steering Committee (ISC) comprises operators, manufacturers, and regulators who follow the guidance outlined in Advisory Circular AC 121-22A , based on use of ATA MSG 3 methodology to develop the scheduled maintenance program for a given aircraft systems structure and engines which results in the maintenance Review Board Report (MRBR).  The MRBR is…