Gas fittings - concerning issue

[nbase810]

So the weather finally started warming up some, got outside to look things over on the trailer and found this fitting at the water heater. The propane hose end fitting at the heater almost cracked the whole way around. There is no way this wouldn't leak. This has to be a combination of cheap parts and the cold winter temps, or maybe it was overtightened when it was built and the cold temps caused it to fail. Either way, now I'm wondering about the two inside the trailer that I don't easily see (furnace and stove). This is a '21 267BHS by the way. Just a heads up, and something I will check from time to time now.

[Marcm157]

Great catch probably preventing a disaster. Most would not have checked that deep. Thank you for posting.