(Formerly Maintenance Error Decision Aid)

Definition

The Maintenance Event Decision Aid (MEDA) is a structured process used to investigate events caused by maintenance technician and/or inspector performance.

Description

Developed originally by the Boeing Company in the early 1990s with the active involvement of three major international airlines, a maintenance staff trade union, and the U.S. Federal Aviation Administration (FAA), MEDA was the first structured attempt to enhance the value derived from investigation of maintenance error by providing a process in which undesirable human behavior was placed in its full procedural context. It has since been widely adopted - and adapted - as a basis, achieving effective maintenance error investigations worldwide.