Originally Posted by TG Twinkie
Unfortunately this is another problem A$ has had for years since they use a nut on the back side instead of a threaded plate that matches the hole pattern of the hinge.
So now you get to drill holes in the inner skin to gain access to the nuts with a wrench.
Airstreams built from about 2011 I believe, have the plate on the inside. One of our hinge screws loosened and we were quite able to snug it down very tight from the outside.
I believe you can get this plate from Airstream and put it in your unit if you decide to pull the skin back.