The interaction and effects of one or more of the following factors should be
· Qualification verification
· Human error
· Management control
When the nature of specific concerns warrants (based upon uniqueness, warranty,
complexity, time-constraints, state-of-the-art technology, special skills/equipment/tools,
etc.) outside expertise may need to be contracted to ensure the appropriate focus.
Root cause categories should be established to:
Facilitate future analyses
Correlate proven corrective actions
Focus management action to the critical few
These methods result in value-added and knowledge-based correction plans which
should be followed to validated resolution, documented in the maintenance history
files, and applicable information should be shared as lessons learned for broad-based
benefit from local actions.