October 13, 2025

Steven Bentley

Sofema Aviation Services (SAS) considers the development of Boeing’s MEDA from Maintenance Error Decision Aid to Maintenance Event Decision Aid. Understanding what that shift means for investigation quality, safety culture, and SMS performance. Background Origins: Developed by Boeing with airline/union/FAA involvement in the early–mid 1990s; distributed to operators from 1995; widely adopted as an industry…