Aircraft on ground

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Aircraft on ground or AOG is a term in aviation maintenance indicating that a problem is serious enough to prevent an aircraft from flying.[1] Boeing estimates that a 1-2 hour AOG situation will cost an airline from $10,000 to $20,000 and possibly even as high as $150,000 per hour.[2]


  1. ^ "Chapter 14 (Human Factors)". Aviation Maintenance Technician Handbook – General (PDF). U. S. Department of Transportation, Federal Aviation Administration. 2018. pp. 14–22, 14–23. FAA-H-8083-30A.
  2. ^ Boeing Commercial Airplanes Operations Center Archived January 30, 2008, at the Wayback Machine