Haven't seen this elsewhere in the thread: there's an interesting piece here commenting that cockpit procedures changes may have been a factor.... .
Christine NegroniNew AA Pilot Procedures Could be Part of Investigation into Near Collision at JFK
and a related one here from January 3:
Pilots Balk As American Airlines Enforces New Cockpit Procedures (forbes.com)
That one refers to "
Allied Pilots Association said the implementation involves an attempt to alter critical procedures through a 35-page bulletin and changes in a 65- page manual rather than through in person training." Anyyone here have a copy of the bulletin and/or manual ?