We bought a 2010 CC 36RE in Dec 2011, it was a used unit. Talked to the org owner and was told it had one trip of a little over 500 miles, so with that info I checked the tires out and they appeared to be in great shape, Load Boss, 2009 MFD, G rated. Wife and I took a trip to Fl for 5 weeks and then headed up to DC for the cherry blooms, on trip to DC we lost one of the tires, thanks to our tire tender off before it done any damage to unit. Called Tire Shild insurance and was told to get it fixed or replaced and fax info. Had a GoodYear G rateing put on. After a few weeks got a letter from the insurance company that they would not cover the tire or any part of it due to factory defects. I called them and was told "we will not cover those cheap China tires with factory defects". After going back on the dealer the tire was covered.
After many phone calls and reading reports from other RV companies I think they just may have had some problems with these tires. Not sure if all but the ones made in the 4 and 5th month of 2009 seem to have problems.
You might check with your dealer or call FR about them.