Not sure what happened, was a successful trip this weekend, then coming home to setup / air out the PUP, the right rear STA would not come down. It gets maybe an inch down and then stops dead. I do have the screw type, found on a coleman/fleetwood Utah, 2002. Looking at the other three, there are a few washers loose on the broken one, while they are not loose on teh other three. Anyone have any suggestions? May have to take it off the PUP to diagnose/repair. I've already covered it in penetrating oil, in case that was the issue. Thanks!