AA 3965 then AA 1727 at Charlotte
Greensboro → Charlotte → New York JFK
Timetable, Charlotte time
08:20AA 3965 from Greensboro at the gate
20:29AA 1727 to New York JFK leaves the gate
12 h 09 apart on the timetable
AA 1727 leaves 12 h 09 after AA 3965 arrives on the timetable: more than half a day, so not a connection we count.