Maintenance errors cost operators of commercial aircraft millions of dollars each year in rework, on-time performance and lost revenue, and present potential safety concerns. For example, aviation industry studies indicate that over 20 percent of all in-flight engine shut downs and up to 50 percent of all engine-related flight delays and cancellations can be traced to maintenance error. In response, Boeing developed the Maintenance Error Decision Aid, MEDA process to assist maintenance organisations to identify why these events occur and how to prevent them in the future.

MEDA is a structured process for investigating the causes of errors made by maintenance technicians and inspectors. It provides a systematic and comprehensive process for conducting thorough and consistent investigations, determining causal factors and thereby enabling the organisation to learn from mistakes. Errors are a result of contributing factors in the workplace, most of which are under the control of management, therefore, improvements can be made to eliminate or mitigate these factors so that similar events do not reoccur.

Following this course, participants will be able to:

  • Understand the responsibilities of a maintenance error investigator
  • Implement a MEDA process
  • Use effective interview techniques
  • Manage challenging situations
  • Perform effective investigations
  • Identify contributory factors to an event
  • Contribute to organisational error reduction
  • Enable compliance with EASA MEMS requirements
MEDA Course Program
Day one
  • Introduction
  • Human factors models
  • Regulatory requirements
  • Investigator roles and responsibilities
  • Root Cause Analysis
  • MEDA event form
  • Report writing
  • Data gathering
  • Case study
  • Investigation skills
  • Interview principles and techniques
  • Interview practical exercise
  • Report practical exercise
  • Challenging interview situations
  • Case study
  • Interview practical exercise
  • Investigator team calibration
  • Trend analysis
  • MEDA part in MEMS and SMS
  • Safety culture
  • Certification
More information

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