AA 5634 then AA 5506 at Charlotte
Louisville → Charlotte → Memphis
Timetable, Charlotte time
14:36AA 5634 from Louisville at the gate
12:22AA 5506 to Memphis leaves the gate
21 h 46 apart on the timetable, overnight
AA 5506 leaves 21 h 46 after AA 5634 arrives on the timetable: more than half a day, so not a connection we count.