AA 5407 then AA 6051 at Charlotte
Springfield → Charlotte → Harrisburg
Timetable, Charlotte time
18:32AA 5407 from Springfield at the gate
18:24AA 6051 to Harrisburg leaves the gate
23 h 52 apart on the timetable, overnight
AA 6051 leaves 23 h 52 after AA 5407 arrives on the timetable: more than half a day, so not a connection we count.