>> ... and I thought I'd read that the fleets which had been laid up had
>> to undergo a full inspection prior to use. Maybe this hadn't been laid up though.
Data on FR24 for the machine involved, registration N772UA, suggests it's been in regular service since at least September 2020.
A full check after layup would be extensive but likely focused on effects of storage and things that might deteriorate through not being 'exercised'. Not sure it would extend to x-ray or similar checks on fan blades which are likely to be mandated by hours/cycles flown and form part of heavy maintenance.
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