AA 3992 then AA 1578 at Phoenix
Burbank → Phoenix → Charlotte
Timetable, Phoenix time
11:44AA 3992 from Burbank at the gate
23:50AA 1578 to Charlotte leaves the gate
12 h 06 apart on the timetable
AA 1578 leaves 12 h 06 after AA 3992 arrives on the timetable: more than half a day, so not a connection we count.