Neither airline flew that airplane. AA and UAL flew the 320, not the 330.Aren't there AA or UAL A330s in boneyards already?
The 330 is a twin engine widebody - It’s been around for over 30 years and the current offering is the A330 NEO with better engines than the 1992 version had.
The old 330s are heading for the boneyard because of age and the better fuel efficiency of the NEO.
DAL flies the 330.
https://en.wikipedia.org/wiki/Airbus_A330