It might have been a different model, but it is not obvious which one would it be
That one segment has some contenders: fokker 100, MD80 (big with AA), even older 737 models in that seat range
AA is in the process of retiring its MD-80s. Between their fleet of 737s, the A320-family craft they got in the US Airways merger, and the A319s and A321s they have on order, the Mad Dog's days are (thankfully) numbered.
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It might have been a different model, but it is not obvious which one would it be That one segment has some contenders: fokker 100, MD80 (big with AA), even older 737 models in that seat range
But I guess Delta made that model work for them
AA is in the process of retiring its MD-80s. Between their fleet of 737s, the A320-family craft they got in the US Airways merger, and the A319s and A321s they have on order, the Mad Dog's days are (thankfully) numbered.