Had the same problem when I purchased my '87 Excella. Seller had tried to disguise it (and did a good job of it) with a lot of rubber molding material. Door was difficult to open, but I didn't put two and two together at the time. Anyway, I lived with it for awhile and then decided to order a new door. Went to the dealer in Searcy, Arkansas to do so. In the course of discussing with the fellow at the parts counter, a technician overheard our conversation and asked to take a look at it. After telling me all the bad things that could happen, he offered to give it a whirl if I was willing to take a chance. As I had went there to order a new door anyway, I didn't feel I had anything to lose. As Cooperhawk and bobchevy89 have already stated, two technicians but blocks in strategic places and pulled on the door so hard I thought the trailer would turn over or they would pull the hinges off. Well, neither happened and they fixed my door. Not exactly perfect, but with just a little rubber molding I now have a door that fits tight and opens and closes easily. Needless to say, I was extremely grateful for the "extra mile" the technicians of this dealership took and was impressed with the professionalism of the entire staff. After seeing the torque placed on the door with no damage whatsoever, I am more sold on the quality of Airstreams than ever. Good luck on your fix.