Reliability Centered Maintenance (RCM)

RCM was developed in the 1960s for US commercial aviation through United Airlines work that became MSG 1, then MSG 2, then MSG 3, and it was adapted to the process industry through John Moubray's RCM II of 1997. It is the structured methodology that determines what maintenance work is genuinely required to preserve asset function. SAE JA1011 as the standard and JA1012 as the guide define the seven core questions that any process worthy of the RCM name must answer, covering functions, functional failures, failure modes, failure effects, failure consequences, preventive tasks, and default actions. The discipline sets itself apart from time based maintenance through consequence categorisation across hidden, safety and environmental, operational, and non operational outcomes, and through task selection logic that prefers predictive and condition based monitoring over scheduled overhaul wherever it makes sense. Our team integrates RCM with API RP 580 RBI for static equipment so that RCM does not duplicate inspection logic, with ISO 14224 reliability data conventions for failure rate libraries, and with CMMS and EAM platforms such as SAP PM, Maximo, and Infor EAM for execution. The hardest part of RCM remains team discipline, and we keep the workshop from drifting into preserving legacy preventive maintenance tasks rather than challenging them against JA1011 logic.