http://airlineforums.com/topic/51871-first-757-to-outsourced-mro/page__view__findpost__p__859263Yes that was me, I had forgot about that. That was from a Panasonic Rep.
104 mods reduced to 64? A reduction of 40 . . . Coincidentally, of AA's 124 total 757s, 40 of them are leased (31 operating leases, nine capital leases). I assume (but don't know whether) that the 18 75Ls are owned, not leased.
AA might not get rid of all 40 immediately, but they're probably short-timers. In the filing in the OP, AA has already filed to reject 11 of them - expect to see filings to reject another 29 in coming days.