Almost all campers have plastic fender liners. When this type of blow-out happens under a camper it is often a total loss due to the cost of making repairs to the interior. Many times in a camper there are bathrooms, plumbing, furnaces, gas and electrical lines located just over the wheels (makes sense that the heaviest items would be located over the axles). Being a vintage Airstream owner, I am aware of the damage that blow-outs can cause. This type of incident used to be extremely rare back when 8-ply bias trailer tires were readily available in consumer sizes (15"-16"). I rode the last set of bias tires on my Airstream until the threads were about to pop through and was forced to go with new radials due to the poor selection of bias trailer tires. The vintage Airstream guys recommend changing radial camper tires every 2-3 years whether they need it or not. It's an expensive proposition. To make matters worse, apparently China has cornered the market on radial trailer tires. It is difficult to find good quality American-made trailer-rated radials. I foresee a lot more of this type of blowout thing happening in the years to come.