Originally Posted by
jimrpa
I'm not sure how AA handles coats. a long time ago, Delta boarding passes had a little hold punched in the smaller part (the side you would keep). The FAs would then collect your BP stub along with your coat and thread the stud through the hanger. That way, they knew which coat was yours.
BA also uses the BP for identifying the coat owner. They do a good job of returning the BP, as the BPs are important for getting past lounge dragons, especially at LHR.
AA does not use this system (at least not on flights I've been on) - often, their hangers have a little white tag tied to the hook, on which the cabin staff member writes the seat number (although just as often the hangers are missing the tags).