Originally Posted by
channa
That's possible, or it's also possible that bookings picked up (even in Y) and IM simply reassessed the flight and withdrew R space, saving it for Y-Ups.
Coach inventory has not changed (as noted in my original post). The flight was 9's across and then W6 S3 T1. Flight was still showing the same inventory when R zeroed out. Flight is now W5 S2 T0 so one more coach seat was removed from inventory.
I am not saying it's
impossible that coach inventory hasn't sold but according to the numbers it hasn't and definitely not enough to remove "R" space.
EDIT: Update, literally a minute ago the new seatmap was loaded. I was right, unfortunately

It's now a 16F 738 doing the SEA-IAH run. UGH!
-RM