AA 5638 then AA 1678 at Charlotte
Harrisburg → Charlotte → Phoenix
Timetable, Charlotte time
07:45AA 5638 from Harrisburg at the gate
07:20AA 1678 to Phoenix leaves the gate
23 h 35 apart on the timetable, overnight
AA 1678 leaves 23 h 35 after AA 5638 arrives on the timetable: more than half a day, so not a connection we count.