Would this be from post AWE/USA merger? I would assume so, because with the AAL/AWE merger coming in, they’ll have the -800s still in the fleet, but shouldn’t fly under the AWE designator and callsign.
Makes it even more interesting. I wonder who owned the metal, as this would have been in the fleet before the AWE-AAL merger, and both AWE and USA had the -400s in their fleet.