MRO

MRO (Maintenance, Repair, and Overhaul / Operations) is the discipline of keeping installed equipment performing across its operational life — scheduled maintenance, unplanned repair, deep overhaul at depot, and the parts, manuals, and skills required to do so. For long-life assets in aerospace, defense, rail, energy, and industrial machinery the MRO revenue stream often dwarfs the original-equipment sale, and PLM is what keeps the engineering record honest from cradle through every overhaul cycle.

What it covers

• As-maintained configuration tracking, distinct from as-designed and as-built, often per tail/serial.
• Service bulletins, ADs, and modification campaigns dispositioned against the installed base.
• Spare parts catalogs and IETPs (Interactive Electronic Technical Publications).
• Predictive maintenance fed by sensor telemetry and digital twins.
• Depot and field workflows for inspection, removal, repair, and re-installation.

Relationships (see sidebar)

• Depends on the Service Parts Management, Field Service Management, and Digital Twin capabilities.
• Supports the Service and Maintenance, Warranty and Field Feedback, and End of Life and Disposal processes.
• Closely tied to Servitization strategy.