An Aircraft-on-Ground (AOG) event is any unscheduled occurrence that prevents an aircraft from being released for revenue service. Effective AOG response is less about speed alone and more about disciplined coordination between the maintenance provider, the airline's Maintenance Operations Control (MCC), and station operations.
Triage and Initial Disposition
The first 30 minutes of an AOG determine the recovery curve. Triage establishes whether the discrepancy is rectifiable in place, requires parts, or requires engineering disposition. Until this is known, downstream decisions — crew, gate, swap — cannot be made with confidence.
Parts and Logistics
Parts movement is rarely the bottleneck on a well-coordinated network. The bottleneck is decision latency: knowing what part is needed, where it lives, and which path moves it fastest. Multi-station providers maintain inter-station logistics to compress this window.
Coordination with Airline Operations
Live status to the airline's operations control is the difference between a one-flight AOG and a cascading delay. Updates should be operationally actionable — estimated return-to-service times, blocking issues, and decision points — not status theater.
Frequently Asked Questions
- What does AOG stand for in aviation?
- AOG stands for Aircraft-on-Ground, an industry term for an aircraft that cannot be released for revenue service until a maintenance discrepancy is cleared.
- How fast is an AOG response?
- Initial technician response at a covered station typically begins within minutes. Total recovery time depends on discrepancy type, parts availability, and engineering disposition.
- Who owns the AOG decision?
- The airline's Maintenance Operations Control (MCC) owns the disposition. The maintenance provider executes and reports status into MCC.