With the insulation in place, this pipe looked perfectly fine! There was no way to tell that the corrosion was quite advanced, and that the pipe could barely hold its design pressure. It was just a matter of time before it failed, releasing hydrocarbons into the atmosphere with a high risk of a fire.
This customer knew that CUI was a risk that needed to be mitigated. He chose to try the new CUI Bracelet Probe detection system from Russell NDE and liked it so much that he wrote a report and put the report in a newsletter. Read that here.