Originally Posted by
Dave Noble
So far, it seems that AA has not announced a change to its policy and still documents that it will through check and protect passengers connecting between AA and another OW carrier ( this on its pages for travel agents and not on the public pages ). I would be very surprised if it chose to be the hang out and continue to offer it as other major OW players stop
Just an update on this: AA has confirmed that it will "continue to thru-check bags on multiple PNRs with Oneworld carriers" (albeit that comment preceded with the statement
"at this time").
Link:
Oneworld airlines revise baggage policy for connecting flights
[Disclaimer: I'm the author of that article but sharing here as it's directly relevant to the issue raised]