Originally Posted by
Tokyoite
marketing carrier and marketing fare basis counts. the AA fare booking code counts. (Normally for OW flights, and partner accrual. Wouldn't expect any different just because it is AS).
Not for Mileage Plan. Officially, you will earn nothing. Unofficially, and per many anecdotes posted on this board, if both the marketing carrier and the operating carrier are MP partners, you can earn credit for the operating carrier.