Originally Posted by
CloudCoder
Definitely a case of HUCA. (Or perhaps LOTA Log Off Tweet Again,

). You can display the record on BA.com, AA.com, or whereever it is, and you can change the FFN to you CK number, AS number, AA number, etc, i.e. any number of your own choosing, or you can blank it out entirely if you wish.
If it were me, I'd go to AA.com and find the reservation by Flight # and Passenger Name, then change the FFN.
One of the popular blogs (TPG) is reporting today that AA is now strictly enforcing terms that have been in the T&C since last year: no change of the FFN or elite benefits on AA if you paid for your ticket using another program's miles/avios. This is a new low for the Aadvantage program.