Just saw this news on AA dealfinder ...
http://www.aa.com/netsaaver/viewProm...l&locale=en_US
Update On Mexico Codeshare Bookings
Following the Federal Aviation Administration's decision on July 30 to revise the rating of Mexico's civil aviation authority, U.S. airlines are prohibited from offering codeshare service on any Mexican airline. As a result, we are advising our customers who have already purchased an American Airlines codeshare flight operated by Mexicana that they will be re-ticketed as Mexicana passengers on the same itineraries or they have the option to receive a refund for their purchased flight. Mexicana codeshare flights operated by American or American Eagle are not affected by the FAA's decision.
Mexicana Earning Table:
http://www.aa.com/i18n/AAdvantage/pa...s/mexicana.jsp