Service · Operational Readiness · Reliability Centred Maintenance

Know exactly
why your assets
fail. Then stop it.

Optimal delivers structured RCM studies aligned to SAE JA1011 and IEC 60300-3-11 — the analytical process that identifies failure modes, their consequences and the optimal maintenance task to address each one. The foundation of every effective maintenance strategy in asset-intensive industry.

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Service Summary

System boundary definition and functional analysis

Failure mode identification per asset / functional system

Consequence evaluation — safety, operational, environmental, economic

Task selection — time-based, condition-based or run-to-failure

Extensive RCM-based library accelerating study delivery

CMMS-ready maintenance plan output

SAE JA1011 · IEC 60300-3-11

Oil & Gas · Mining · Nuclear · Power · FMCG

Rotating plant · Static equipment · E&I · Civil

UK · Europe · Middle East · Africa

What is RCM?

"A process used to determine what must be done to ensure that any physical asset continues to do what its users want it to do in its present operating context."

SAE JA1011 — Evaluation Criteria for RCM Processes

It starts with function, not equipment. RCM asks what the asset is required to do — not simply what it is. The maintenance strategy follows from the consequences of functional failure, not from generic OEM schedules.

Not all failures are equal. RCM classifies failure consequences — safety-critical, operationally significant, non-critical — and calibrates the maintenance response to the consequence. High-consequence assets get intensive condition-based attention. Low-consequence assets may be run to failure by design.

The output is a defensible maintenance plan. Every task selected by RCM is traceable to a documented failure mode, a consequence category and a task selection rationale. The plan is auditable, updatable and connected to real operational risk.

It is the foundation of the ARaaS® programme. Optimal's RCM studies feed directly into the ARaaS® Toolbox — the Extensive RCM-Based Library, prescriptive maintenance workflow and cost-optimised strategy modelling are all built on RCM foundations.

Why RCM Is Necessary

Maintenance without
RCM is guesswork

Most maintenance schedules in industrial operations were never subject to RCM analysis. They were built on OEM recommendations, engineering intuition and inherited practice — then accumulated tasks over years without any systematic review of whether those tasks address the actual failure modes driving unplanned downtime.

The result is a maintenance programme that is simultaneously over-specified on low-consequence assets and under-specified on the failure modes that matter. Technicians are busy. The reactive rate stays high. And the root cause — a maintenance strategy disconnected from failure mode reality — is never addressed because no one has done the analytical work to connect the two.

RCM is that analytical work. It is not a software tool or a management framework. It is a structured engineering process that, when done properly, produces a maintenance plan in which every task exists because of a specific failure mode — and every failure mode has been assessed for its consequence to safety, production, environment and cost.

No documented failure mode basis for maintenance tasksIf a task cannot be traced to the failure mode it prevents, it has no analytical justification. OEM recommendations are a starting point — not an RCM study. Most industrial PM schedules have never been subjected to systematic failure mode analysis.

PM task list grows but reactive rate does not improveTasks added after incidents are rarely removed after improvement. The schedule inflates. Technician time is consumed. But because the tasks were not connected to the failure modes driving reactive events, the reactive rate is unaffected by the additional workload.

No differentiation between safety-critical and non-critical failure modesWithout consequence classification, high-consequence and low-consequence failure modes receive proportionally similar maintenance attention. Critical failure modes are under-managed. Non-critical assets are over-maintained. Neither is a rational use of resources.

Condition monitoring not matched to failure progressionCondition monitoring tasks are often selected without reference to P-F interval analysis — the time between detectable deterioration and functional failure. Without understanding the P-F interval, monitoring frequency cannot be set rationally and detectable deterioration may be missed entirely.

No basis for run-to-failure decisionsRCM establishes when run-to-failure is the correct maintenance policy — when no maintenance task is effective or economic, and the consequence of failure is tolerable. Without RCM, run-to-failure is not a policy decision: it is an oversight.

The RCM Decision Framework

Seven questions.
One structured answer per failure mode.

RCM is structured around seven canonical questions — applied to every failure mode of every asset in scope. Together they produce a fully justified maintenance task selection for each failure mode, classified by consequence and calibrated to the physics of how that failure actually progresses.

Function

What does the asset do?

Define the primary and secondary functions of the asset in its current operating context. The maintenance strategy must preserve these functions — not simply maintain the asset in its current physical condition.

Functional baseline

Functional Failure

In what ways can it fail to fulfil its function?

Identify all failure states — complete loss of function and partial degradation. A pump that delivers 50% of required flow is in functional failure even if it is still running.

Failure state register

Failure Modes

What causes each functional failure?

Identify every cause that could lead to a functional failure state — including normal wear, abnormal operating conditions, design deficiencies and human factors. Each cause is a failure mode requiring individual assessment.

Failure mode register

Failure Effects

What happens when each failure occurs?

Describe what happens when each failure mode occurs — including evidence available to operators, threat to safety or environment, production impact and physical damage consequences.

Consequence description

Consequence Classification

Does it matter — and how much?

Classify failure mode consequences: safety-hidden, safety-evident, environmental, operational or non-operational. This classification drives the maintenance task selection logic — consequences determine how much effort is warranted.

Consequence category

Task Selection

What should be done to predict or prevent failure?

Apply the RCM decision logic to select the optimal task: condition-based (on-condition), time-based (scheduled restoration or discard) or run-to-failure. Task selection is only valid if technically and economically worthwhile — otherwise RTF is the correct policy.

Maintenance task selected

Default Action

What if no task is effective or worthwhile?

If no proactive task is technically feasible or economically justified, RCM formally determines the default action — run-to-failure with contingency planning, or redesign. RTF by RCM decision is a deliberate policy. RTF by oversight is a reliability failure.

Default policy confirmed

Every failure mode.
Every asset in scope.
Every answer documented.

Start a study →

How Optimal Delivers

Five phases from scope
to CMMS-ready plan

Optimal's RCM study methodology follows a structured five-phase process — from system selection and boundary definition through facilitated FMECA sessions, task selection and plan build to implementation support and governance handover.

Scope & System Selection

Define which systems and assets are in scope, prioritised by criticality. Establish system boundaries, functional descriptions and operating context. Review existing maintenance history, CMMS data and any previous FMECA or maintenance strategy documentation to inform the study.

Facilitated FMECA Sessions

Structured working sessions with your engineering, operations and maintenance SMEs — applying the seven-question RCM process to each asset in scope. Optimal facilitators use the Extensive RCM-Based Library as a starting point, adapting to site-specific operating context, failure history and OEM data.

Consequence Classification

Classify each failure mode by consequence category using the RCM decision diagram — hidden safety, evident safety, environmental, operational or non-operational. Apply P-F interval analysis to condition-based task candidates to validate monitoring frequency and detection window.

Task Selection & Interval Optimisation

Select optimal maintenance task type for each failure mode — on-condition, time-based or run-to-failure. Determine interval based on P-F analysis, age-reliability relationship and consequence weighting. Produce the RCM task library with full documentation of task selection rationale per failure mode.

Plan Build, CMMS Upload & Handover

Translate RCM outputs into structured maintenance work orders — task descriptions, frequencies, resource hours, spare parts references and safety requirements. Upload to CMMS, deliver planner training and establish the annual review governance framework. Study documentation archived with full traceability.

RCM facilitation and reliability engineering

The ARaaS® Toolbox Advantage

Faster. More accurate.
Library-accelerated RCM.

The most significant constraint in RCM study delivery is not methodology — it is time. A thorough RCM study requires failure mode identification across every asset in scope, facilitated with your SMEs. Without a starting point, that process is slow, inconsistent between facilitators and vulnerable to the gaps in any individual's knowledge.

Optimal's ARaaS® Toolbox includes an Extensive RCM-Based Library built from years of study delivery across asset-intensive industries — covering rotating machinery, static equipment, electrical and instrumentation, mechanical systems and civil assets. It provides a structured starting point for every FMECA session that accelerates study delivery without sacrificing the site-specific analysis that makes RCM outputs defensible.

Library-accelerated study delivery — shorter programme duration →

Cross-industry failure mode knowledge embedded in the starting point →

Site-specific failure history and SME knowledge layered over library base →

Consistent facilitator methodology across all assets and sessions →

SAE JA1011 compliant output — auditable and defensible →

ARaaS® Toolbox

Study Deliverables

What you receive
at study completion

D01

System Boundary & Functional Register

Defined system boundaries, asset list, functional descriptions and operating context for all assets in scope. Provides the structured foundation for the FMECA and serves as the reference document for future study updates and scope extensions.

D02

FMECA Register

Complete Failure Mode, Effects and Criticality Analysis per asset — failure modes, causes, effects, current controls, detectability, consequence classification and criticality rating. Maintained as a living document with version control and study date records.

D03

RCM Decision Worksheets

Completed RCM decision logic worksheets per failure mode — documenting the seven-question analysis, consequence category, task selection rationale and default action. SAE JA1011 compliant. Fully auditable and traceable for regulatory or certification purposes.

D04

RCM Task Library

Structured task library per asset and system — task type, interval, resource, tools, safety requirements and failure mode linkage. Every task traceable to its originating failure mode and consequence classification. The direct input to maintenance schedule build.

D05

CMMS-Ready Maintenance Schedule

Structured maintenance plan formatted for your CMMS — work order descriptions, task steps, frequencies, resource hours, spare parts references and safety isolation requirements. Uploaded and verified in your live system as part of handover.

D06

Study Report & Review Framework

Full study report documenting scope, methodology, participants, assumptions and key findings. Annual review trigger conditions, update process and governance responsibilities — ensuring the RCM study evolves with operational experience rather than becoming a static record.

ARaaS® Toolbox · RCM is just the start

From RCM study
to intelligent programme.

The RCM study produces the failure mode register and task library. The ARaaS® Toolbox then takes that output further — deploying predictive analytics to monitor condition against the failure modes identified in the study, prescriptive maintenance to recommend the specific intervention when deterioration is detected, and cost-optimised modelling to continually refine task intervals as real operational data accumulates. RCM is the foundation. The Toolbox is what makes it a living, improving programme.

View the ARaaS® Toolbox ARaaS® Framework →

Toolbox · Strategy

Extensive RCM-Based Library — accelerates study delivery across all asset types and sectors

Toolbox · Data

Predictive Analytics — monitors condition against failure modes identified in the RCM study

Toolbox · Strategy

Prescriptive Maintenance — recommends specific intervention when predicted failure progression is detected

Toolbox · Strategy

Cost-Optimised Strategies — refines RCM task intervals using accumulated operational data and ROI modelling

Evidence of Delivery

RCM studies
in practice

All case studies

Case studies below are anonymised. Client consent is required before specific project details are attributed publicly. Contact us to arrange reference calls.

Oil & Gas · Offshore FPSO · West Africa

Major Offshore Operator — Rotating Plant RCM Study

FPSO operator with no documented RCM basis for any maintenance task across gas turbines, compressors, pumps and utility systems. PM schedule inherited from design basis with no failure history review. High reactive rate on primary rotating plant. Requirement from asset owner for SAE JA1011-compliant RCM documentation ahead of contract renewal.

SAE JA1011

Compliant RCM study delivered across all rotating and critical static plant — full FMECA register, RCM decision worksheets and task library. Accepted by asset owner as contractual deliverable

92–98%

Gas turbine availability target achieved following maintenance strategy revision based on RCM outputs — condition-based tasks replacing time-based overhauls on primary power generation units

Nuclear · Decommissioning · UK

Nuclear Decommissioning Facility — Safety-Classified Systems RCM

Decommissioning facility requiring RCM studies on safety-classified mechanical handling, ventilation and effluent treatment systems as part of an ONR compliance programme. No existing FMECA documentation. Maintenance strategy for safety-classified systems not traceable to documented failure mode analysis. Regulatory expectation for evidence of structured risk-based maintenance decision-making.

ONR

RCM study outputs structured to meet ONR regulatory expectations — safety-classified system FMECA, consequence classification aligned to nuclear safety case requirements, task library with safety justification per task

£14M

Materials and spares rationalised in year one following RCM-informed spare parts strategy — criticality classification from FMECA used to identify over-stocked non-critical items and under-stocked safety-critical components

Mining · Processing Plant · Southern Africa

Global Mining Group — Processing Plant RCM Programme

Open-pit mining group requiring RCM studies across primary and secondary crushing, milling and flotation circuits — all running generic OEM PM schedules with no failure mode basis. High availability losses on critical processing plant. ISO 55001 certification objective required documented evidence of structured maintenance task justification across the asset base.

15%

Availability improvement on primary processing plant — RCM outputs shifted critical equipment from time-based to condition-based maintenance, targeting the failure modes responsible for unplanned stoppages

6 sites

Common RCM methodology deployed across all six processing facilities — site-specific FMECA sessions, shared RCM task library base, individual CMMS upload per site

Chemical & Process · Process Plant · Europe

Specialty Chemical Manufacturer — ATEX and Process Safety RCM

Specialty chemical manufacturer operating ATEX-classified process plant requiring RCM study to support a process safety management improvement programme. Safety-critical elements — pressure relief, emergency shutdown, gas detection — had no documented FMECA. Maintenance tasks not traceable to safety case requirements. IEC 61511 functional safety review identified gaps in ESD system maintenance justification.

IEC 61511

RCM study structured to meet IEC 61511 functional safety maintenance requirements — SIL-rated system FMECA, proof test interval justification and systematic failure mode coverage for all safety instrumented functions

PSM

Process safety management programme compliance achieved — full FMECA documentation accepted by site safety case author and process safety manager as evidence of structured risk-based maintenance decision-making

Common Question

RCM vs FMEA —
what is the difference?

Both involve failure mode analysis. The distinction matters. FMEA is an analytical tool — it identifies failure modes, effects and causes. RCM is a decision process — it takes FMEA outputs and applies a structured logic to determine what, if anything, should be done about each failure mode, based on consequence and the physics of failure progression. FMEA informs. RCM decides.

FMEA identifies failure modes and their effects — input to the RCM process

RCM classifies consequences and selects the optimal maintenance response

RCM produces a justified maintenance plan — FMEA alone does not

Optimal delivers both as integrated services — or either as a standalone

The ARaaS® Toolbox library accelerates both, reducing session time significantly

FMEA Development Service Discuss your requirement →

Related Services

Services that work
alongside RCM

All services

GARPI™ — Global Asset Reliability & Performance Index

Does your maintenance strategy
have an RCM foundation?

GARPI™ Dimension 3 — Maintenance Strategy & Execution — specifically measures whether your maintenance tasks are justified by documented failure mode analysis, whether consequence classification is applied across the asset base and whether an annual review process exists to keep the strategy current. Take the free survey to see where your organisation sits against global peers on these criteria.

Take the Free Survey Discuss your results

Dim 1

Asset Performance Outcomes

Dim 2

Reliability Governance

Dim 3 — Focus

Maintenance Strategy & Execution

Dim 4

Data & Digital Capability

Dim 5

Lifecycle Value & Financial Alignment

Dim 6

Workforce Capability & Knowledge

Dim 7

Spares & Materials Management

Dim 8

Strategic Outlook

Next Steps

Ready to build an
RCM-based foundation?

Whether you need a full SAE JA1011-compliant RCM study across a process system, a targeted FMECA on a chronic failure asset, or an RCM programme integrated into an ISO 55001 certification roadmap — Optimal has delivered all three across oil & gas, nuclear, mining, power, FMCG, chemical and transport operations globally.

Start with a discovery conversation. We will scope the study, confirm which systems and assets should be prioritised based on your failure history and criticality, and give you a clear programme structure and timeline before any work begins.

Book a Discovery Call Take GARPI™ Survey

Global Enquiries

enquiries@optimal.world
optimal.world/contact-us

Credentials

ISO 9001:2015 certified · IAM Member 1035342
SAE JA1011 · IEC 60300-3-11 aligned methodology

Practice Area

Operational Readiness — part of the Asset Reliability

Know exactlywhy your assetsfail. Then stop it.

Maintenance withoutRCM is guesswork

Seven questions.One structured answer per failure mode.

Five phases from scopeto CMMS-ready plan

Faster. More accurate.Library-accelerated RCM.

What you receiveat study completion

From RCM studyto intelligent programme.

RCM studiesin practice

RCM vs FMEA —what is the difference?

Services that workalongside RCM

Does your maintenance strategyhave an RCM foundation?

Ready to build anRCM-based foundation?

Know exactly
why your assets
fail. Then stop it.

Maintenance without
RCM is guesswork

Seven questions.
One structured answer per failure mode.

Five phases from scope
to CMMS-ready plan

Faster. More accurate.
Library-accelerated RCM.

What you receive
at study completion

From RCM study
to intelligent programme.

RCM studies
in practice

RCM vs FMEA —
what is the difference?

Services that work
alongside RCM

Does your maintenance strategy
have an RCM foundation?

Ready to build an
RCM-based foundation?