Originally Posted by
manord
You can have two on some other airlines (e.g. BA) - where the PNR supports both FQTV (earning) and FQTS (status) fields. Does AA not support this?
Right. However, AA doesn't allow it. It is somewhat surprising, I'm sure there are a decent amount of people who are both AA EXP and BA Silver/Gold, but I guess they don't want to let those people into the ACs for free on any domestic trip and get extra AA miles as the same time.