Aircraft on ground or AOG is a term in aviation maintenance indicating that a problem is serious enough to prevent an aircraft from flying.
There is a possibility to mark a checkbox AOG (Aircraft On Ground) in the section $$Maintenance$$ > $$Scheduled Maintenance$$ > $$Edit Scheduled Maintenance$$
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The appearance slightly changes in the $$Planned Flights$$ section - ‘MAINTENANCE’ is being replaced by AOG.
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