Originally Posted by edcho

If you are talking about the 752s -- some are on the list for retirement this year (along with the 735s but most of those are already gone). Curious at the exact MX reason too.

They are (someone correct me if i'm wrong) to be replaced with the 739s.

You can check this out at a site that Bunky maintains: https://sites.google.com/site/united...fleet-tracking