Glossary

Preventive maintenance

Preventive maintenance is planned servicing of assets at defined intervals or usage levels to lower the risk and impact of failures.

Core Aerospace Operations Execution Supplier and Work-Order Orchestration

Preventive maintenance is a structured, planned approach to servicing equipment, production lines, and supporting assets before functional problems are observed. It aims to lower the likelihood, frequency, or impact of failures by carrying out predefined inspection, calibration, cleaning, adjustment, repair, or replacement tasks on a regular schedule or after a defined amount of use.

Typical elements of preventive maintenance in manufacturing include:

Defining task lists and standard procedures for each asset or asset class
Issuing and scheduling work orders based on time (e.g., weekly, monthly), usage (e.g., run hours, cycles), or other predefined triggers
Coordinating maintenance windows with production plans to minimize unplanned downtime and disruption
Documenting completed work, findings, and parts used for traceability, analysis, and regulatory records
Updating next due dates, usage thresholds, or task lists based on observed equipment condition and history

In MES- and data-driven environments, preventive maintenance can be initiated or refined using operational data such as run hours, cycle counts, alarm histories, quality results, and basic condition checks. This helps align planned work with actual equipment usage and observed performance, while remaining distinct from predictive maintenance, which uses advanced analytics and modeling to anticipate specific failure modes.

The OASIS database is an IAQG-managed directory of organizations certified to AS9100-series standards and the CBs and auditors that oversee them. In supplier control, OASIS is primarily used to verify certification status, scope, and audit history of aerospace suppliers. It does not replace your own supplier qualification, performance monitoring, or risk management processes, and the accuracy and usefulness of data depend on how reliably CBs maintain records.

How does shared execution data change supplier performance reviews and SRM processes?

Shared execution data shifts supplier performance reviews from periodic, disputed scorecards to continuous, evidence-based collaboration. It can improve fairness and speed of SRM decisions, but only if integrations are robust, data definitions are aligned, and change control, access, and validation are handled carefully across ERP, MES, QMS and supplier portals.

What is the difference between a PO and a work order?

In industrial and regulated environments, a purchase order (PO) is a commercial document used to buy goods or services, typically from external suppliers, while a work order authorizes execution of work, usually within the plant or by a service provider. Both must align with MRP/ERP data, change control, and traceability, and confusion between them can cause planning, cost, and compliance issues.

What is the job description of order management?

Order management in regulated manufacturing is a cross-functional responsibility, not a single role. It covers how customer orders are captured, validated, scheduled, tracked, changed, and closed across ERP, MES, planning, quality, and logistics. Scope, tooling, and ownership depend heavily on plant systems, integration quality, and process maturity.

Related Glossary

advanced shipping notice (ASN)

An electronic pre-shipment message from a supplier that details what is being shipped, how, and when, aligned to purchase orders and line items.