Definition(s)
Failure Cause or Root Cause
Circumstances associated with design, manufacture, installation, use and maintenance that have led to a failure. NOTE See also B.2.3.
Source: API STD 689, Collection and Exchange of Reliability and Maintenance Data for Equipment, First Edition, July 2007. Global Standards
Failure Cause
Circumstances during design, manufacture or use that have led to a failure. NOTE Generic failure cause codes applicable for equipment failures are defined in ISO 14224:2006, B.2.3.
Source: ISO 20815:2008, Petroleum, petrochemical and natural gas industries – Production assurance and reliability management. Global Standards