On a somewhat unrelated note, does their London CTO still exist? And if so, is it set up for visitors, or does it only do backroom stuff like AA Sydney?
American Airlines London Office
City Ticket Office
45-46 Piccadilly
London W1
I found this address by googling - but it's not on AA.com or the UK version. I'd rather not do things at the ATO if I can help it.
Figured that if reissuing would only take a few hours I'd rather do it sooner than later and I think I've got some time in London.