AA 551 then AA 1331 at Charlotte
Providence → Charlotte → Washington National
Timetable, Charlotte time
02:49AA 551 from Providence at the gate
20:27AA 1331 to Washington National leaves the gate
17 h 38 apart on the timetable
AA 1331 leaves 17 h 38 after AA 551 arrives on the timetable: more than half a day, so not a connection we count.