MaintenanceEvent

MaintenanceEvent is a record of a maintenance action performed on an asset, facility, or infrastructure. It is commonly stored in a maintenance management system or asset registry and serves as the primary source of truth for what work was done, when, and by whom. A typical MaintenanceEvent captures the timing of the work (start and end times or duration), the asset identifier or location, the event type (preventive, corrective, or predictive), a concise description, the responsible technician or contractor, and references to related records such as a work order. It also records resources used and outcomes, including labor hours, parts consumed, material costs, downtime, and current status.

The purpose of a MaintenanceEvent is to document actions for accountability, enable planning of future maintenance, support reliability analysis, and satisfy regulatory, safety, and warranty requirements. Common attributes include unique event_id, asset_id, start_time, end_time, duration, event_type, description, technician_id, site, status, and fields for root cause, failure mode, risk assessment, safety notes, and compliance flags.

Maintenance events fall into several types: preventive maintenance events scheduled to reduce the likelihood of failure; corrective maintenance events undertaken to restore function after a fault; and predictive maintenance events guided by condition monitoring data to intervene before failure occurs.

Lifecycle typically proceeds from initiation and planning to execution, verification, and closure, with the event forming part of the asset’s maintenance history and linked to related records such as the asset, work orders, and inventory transactions. Analysts use MaintenanceEvents to compute metrics like mean time between failures, maintenance cost per asset, and uptime impact, and to support auditing and continuous improvement. See also CMMS, asset management, reliability-centered maintenance, preventive maintenance.