Originally Posted by
italdesign
That means even though all the available fare codes of the new flight is eligible to earn miles, it is supposed to be booked into an award fare code if you are on an award ticket, right?
If your rebooking is set up correctly (by the rules), then you can be rebooked into a mileage earning fare basis but still earn miles based on the original fare purchased, which would be zero in the case of award tickets.
I find in irrops situations like this, at least 75% of the time you'll be rebooked into a Y/J/F fare basis, but it's usually 50/50 whether you'll earn miles based on that or the original ticketed class.
Generally depends on the AAgent's skill, how it's handled in the computer, how much in a hurry they are, etc.