We were driving back from Las Vegas and decided to stop for lunch at a rest stop before crossing the Canadian/USA border. I was outside getting something out of truck and as I was walking back I could hear some hissing near the trailer tires. My first thought was... lucky i'm at a rest stop and not on the side of the hwy changing a tire but when I bent down to see where the leak was coming from I found out I broke my propane line behind the tires along the frame.
The rear steel pipe clamp broke which cased the pipe to drop and the axle was now hitting the pipe.

I'm glad I don't drive with my propane tanks on.