Yet another brake pipe under cover

Its seems to be a common problem om Range Rovers if their is any sign of corrosion on the visble rear part of the brake pipe you can bet your last £1.00 when you remove the covers the will be a lot worst , I have seen them when people join them up without taking the under-trays of come unstuck when the hidden brake pipe ruptures on their customers,I personally think that if a brake pipe is failed on an mot then the under-trays should be removed to check the unseen part by the repairer by not doing so,it us who become the fall guys in subsequent enquiries as we are supposed to know better.