Originally Posted by beachfan

There isn't a requirement of current availability for dropping a segment. If flying xxx-yyy-zzz on an award, then you can drop xxx (once tickeded) without yyy-zzz having availability (as long as xxx and yyy are in the same region).

I think that somehow knowing a few months later whether yyy-zzz was available at the time of booking xxx-yyy-zzz is beyond AA's IT skills but maybe they are so concerned about ensuring a miserable experience that they will persevere and successfully program that.

Right now, I find MIA-JFK-EZE available and JFK-MIA-EZE available, but neither MIA-EZE nor JFK-EZE.