Originally Posted by
ethanaviation
even more strangely, N774UA (failed replacement flight, attempt #2 aircraft) is spending only 8.5 hrs for maintainance at EWR tmr, before heading all the way down to Rio on UA3928. Is this yet another recovery flight? UA doesn't even usually fly the 772 to Rio, only the 763 from IAH.....
That is a ferry flight with no pax, no idea if maintenance is done at GIG now or not.