When did AA start blocking middle seats on 737's BEHIND the MCE rows? The MCE folks have middle seat passengers while I'm in 16, non MCE, and have a blocked middle for several rows behind me on both sides. Is it related to crew requirements for fewer passengers? See pics below. A quick search via iPhone on MP revealed no other thread. As a side point, I'm a little miffed that even with open F and MCE seats I'm in Y. I know I'm standby... and I'm getting home early. It's the principle of the thing. It's not worth complaining about, but its worth whining about on MilePoint. Edit: my rowmate just got the battlefield upgrade, so perhaps I bitched too soon. F may in fact be full now with "regular" (non-standby) passengers.