Problem is Larry in this world of lawsuits I can understand why he says this. Also in dealing with customers working on their own engines I have seen some pretty bad stuff that they cause. I am a FAA licensed A&P Aircraft and power plant mechanic along with my IA Inspectors license. I would totally understand if he said I needed to return it for repair even though I have done hot section inspections and anything else you can think of on full scale turbines. In the world of liability and lawsuits this is what needs to be done.