Cracked Frame

Has anyone had a problem with a cracked frame?

I took deliver of a new 2005 TM 2720 in March 2005. Today, while gettigng ready for the second season, I saw a line of rust. I thought it was just a streak from rusty water, but it is a crack down the entire outside of the box tube and also along the bottom and just barely upe the inside face. Slightly more than one half of the stee has failed. The failure appears to have started at the edge of the weld that attaches the swing away hitch to the main frame.

I sure am glad I noticed it before we took it out.

How often do most owners examine the frame for cracks? What do you do about them?

I'll be on the phone Tuesday with Dinuba RV to see about some warantee work.