Not sure if anyone has ever seen this before, but for about 1 hour yesterday AA released insane amounts of C inventory. Almost every flight for months out was C7 or C4 if there was only 4 J seats left, etc. I tried calling to upgrade 2 flights, but because of the weather issues in the south east the wait/ callback time was 45 minutes. By the time I received my call the inventory all went back to C0. I hope some people were able to score some upgrades during that hour. Obviously this was a glitch that AA quickly remedied.