Join Date: Nov 2009
Location: Northeast Kansas | Colorado Native
Programs: Amex Gold/Plat, UA *G, Hyatt Globalist, IHG Plat Marriott LT Gold, NEXUS, TSA Disparager Unobtanium
Posts: 22,626
Flew with my roommate (non-elite) on SEA-MCI a few months ago. His AAdvantage acct. has his name misspelled, so it didn't match the name on his AS ticket, giving us the error you indicated.
Have you verified that your ticket is the same spelling as your AAdvantage acct?