Asset History
Asset History is the complete, time-ordered 'operating biography' of a single asset, linking installations, calibrations, lubrications, inspections, failures, repairs, parts swaps, sensor readings, operator handovers, and cost data to specific components, work orders, and technicians.
In CMMS (e.g., ServiceGrid), every closed work order, PM completion, inspection finding, and parts replacement automatically enriches the asset’s chronological record. This enables reliability engineers to run FMEA, calculate true MTBF/MTTR, identify failure-mode patterns, and justify CapEx replacement over rebuilds. The structured history supports objective criticality ranking using failure frequency and downtime cost data, replacing intuitive priorities with cost-based PM decisions.
- Recording only what happened (e.g., 'bearing replaced') without the specific failure mode (e.g., 'fatigue,' 'corrosion'), rendering data useless for predicting why or when it will fail again.
- Missing granular operating conditions and P-F Interval (detectable-to-functional failure time), preventing actionable failure prediction.
- Allowing paper records or unstructured logs to fragment the history, breaking traceability for root cause analysis and compliance audits.
How much structured failure data is needed to identify high-frequency failure modes and calculate meaningful MTBF for critical assets?
6–12 months of structured failure data is sufficient.
What standard governs data governance for asset history to ensure failure-mode granularity?
ISO 14224:2016, requiring technicians to log specific failure modes (e.g., 'seizure') rather than just components.
How does sub-asset history behave after overhaul in a reliability-centered CMMS?
Serialized sub-assets retain complete historical records post-overhaul and resume accumulation from documented baselines upon reinstallation.
What metric does asset history make objective for criticality ranking?
Failure frequency and downtime cost data, replacing intuitive rankings with objective, cost-based PM priorities.