AA 1992 then AA 6006 at Charlotte
St Louis → Charlotte → Huntsville
Timetable, Charlotte time
13:14AA 1992 from St Louis at the gate
09:20AA 6006 to Huntsville leaves the gate
20 h 06 apart on the timetable, overnight
AA 6006 leaves 20 h 06 after AA 1992 arrives on the timetable: more than half a day, so not a connection we count.