My partner’s flying solo on an AA flight to Heathrow (not business, no status) and is an authorized user on my Citi AAdvantage Executive card. My card says “Admirals Club” on the back theirs doesn’t.
AA phone rep said they can still get into the Arrivals Lounge with the card and boarding pass, but I’m not convinced. Has anyone actually tried this? Arrivals lounges can be pretty picky.