Jonnyboy: It's hard to say right now. American really likes the plane, but due to it's range limits, and their committment to Boeing, I'd say long-term, the A300's don't have a bright future. Like the F100, the A300 is an odd-ball in their fleet, although the A300 even more so. The F100 serves the 100 seat pax market very well, but with Fokker gone, spare parts are going to get harder and harder to find.
I'd say the A300 will remain for about another 3-5 years, I think will hear of a replacement soon.
In 10 years, the American fleet will be all-Boeing. my hunch goes like this:
737-600(to replace the F100)
737-700 (to replace the MD-80)
757-300 (to replace ageing 767-200s)
767-400 (I think this will come in, replace some 763s)
As American originally ordered 75 737-800s, with 425 options on any series. That's why I put the 736 and 73N. I think the 757-300 will come in as a replacement to the 767-200s. I think if AA get's some 767-400s, that will free up some 763s to replace the A300. I think AA getting the 777-200LR is possible as well.
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