mozart wrote:Thanks.
So the JFK-LAX/SFO flights are then all CEOs? As you said above, the low-density ones are CEO, this is what I conclude, is that right?
Yes, the low-registered, low-density A321ceo are internally identified as A321T. N101NN-N117NN (some with odd suffixes in there) are configured F10C20Y72. N118NN onward in that batch of legacy AA ordered-A321s are C16Y165. The legacy US Airways airframes start at N150UW (and there are some legacy AA ordered planes in that same N150xx onwards registration sequence, with non-UW suffixes) are configured a little differently. There there are the N5nnxx A321ceos, as well as the N9nnxx registered A321ceos in there mixed among the N9nnxx 737-800s.
Source:
https://www.planespotters.net/airline/American-Airlines