Csturdiv From United States of America, joined Aug 2005, 1356 posts, RR: 3 Reply 2, posted (3 years 9 months 3 weeks 6 days 13 hours ago) and read 3831 times:
If CH-Aviation is right, only two, N357AA and N389AA. A few weeks ago I was trying to hit some golf balls at a driving range near ORD and I could've sworn I saw one of these, but I couldn't tell by the angle and the height it was at. It was an AA bird with winglets, not a B738, I know that for sure. Whatever it was, it did look nice!