Wanted to tap into the flyertalk community for some insight mostly for curiosity.
Currently have an economy reservation on hold for AA997 DFW EZE on 13April. DFW to EZE is in PE (N->P upfare from reading farebasis) as part of a rt originating from Boston

AA.com for 13th, and 12th has the PE cabin blocked out for seat assignments, and EF just doesn't even show the PE cabin for seats on those dates. I originally thought it could've been oversold and good OpUp but it looks like there's plenty of PE inventory still left and available to purchase. Any idea what could be causing this? To my knowledge from reading the forums here, all 772s of AA have the PE cabin already so an equipment swap doesn't really impact anything.

Henry