Originally Posted by Steve_Hun

Flagship check-in IS available for ANY non-AA OWE, as long as flight is operated by AA. For AA OWE, available only on qualifying international routes.

Flagship dining is only available for AA CK or F ticket holders. No access based on "normal" frequent flyer tier.

Thus I'd say teemuflyer is right that AA does not have a lounge that is accessible for AA's EXP, but not for other OWE flyers.