AA 5992 then AA 6064 at Charlotte
Tri-Cities → Charlotte → Harrisburg
Timetable, Charlotte time
09:34AA 5992 from Tri-Cities at the gate
09:30AA 6064 to Harrisburg leaves the gate
23 h 56 apart on the timetable, overnight
AA 6064 leaves 23 h 56 after AA 5992 arrives on the timetable: more than half a day, so not a connection we count.