American Airlines intends to phase out its 757-200s on some Hawaii routes starting in August of this year, replacing them with its 2-cabin A321s while the 757s currently flying to Hawaii will shift to Phoenix. (airwaysnews.com) 更多...
If this story is correct the US Airways 757's being retired are actually legacy America West 757's. Some of them also flew for NWA and RPA. All date back to the mid to late 80's except Tail: N207UW Ship: 207, which is an ex North American 757 built on 2001.
Here is a list of American's legacy fleet LAX based Hawaiian market 757's. "Airways" is not the first media outlet to report that AA planned to use some of their new AA legacy A321 aircraft to Hawaii. The other question not answered by the article is do they plan to use their already delivered A321's or are the ones intended for Hawaii yet to be delivered.
Another thing they reported is the fact it would be difficult to maintain a sub fleet of ETOP's A321's. Not really considering American has plenty of experience doing it with their LAX based 757's as well as their 20 Internationally configured 757's used on deep South American and European markets.