We have a 2010 Georgetown 378S and while we were on vacation last week, we found a sress crack on the back right side of our motor home about 9" from the top. We haven't hit anything or had anything hit us so we're fairly certain this is what it is. Has anyone else had this problem? We took it to a body shop and they said they wouldn't fix it because it nees an entire new back section. Hope FR comes through on this as I believe it's faulty construction.