Heat sink
Due a series of continuing incidents and accidents, unabated it appears, AA is the subject of considerable FAA scrutiny, lots of impromptu inspector appearances in those cockpits these days.
Just have to add this one to the chalkboard I guess, systemic issues that have worked their way into the training department are tough to root out, especially for a carrier of that size.
All boils down to people though, individual people, their methods and opinions, those agendas need to be identified and dealt with. Somewhat smartly I'd venture to say.