AA 2773 then AA 5543 at Charlotte
Boston → Charlotte → Pittsburgh
Timetable, Charlotte time
15:19AA 2773 from Boston at the gate
08:35AA 5543 to Pittsburgh leaves the gate
17 h 16 apart on the timetable, overnight
AA 5543 leaves 17 h 16 after AA 2773 arrives on the timetable: more than half a day, so not a connection we count.