In Furnace Piping Coil Inspection, they have a 3D tube model display which allowed damage patterns to be quickly identified. The pin point measurements enabled the damages to be quantified very accurately. A platformer furnace containing four sets of headers (132 individual 'U' harped coils) was examined. The individual coils were accessed from inside the headers by way of a custom FTIS extraction system. After each of the individual coils were filled with water (required to couple the ultrasonics) the FTIS intelligent pig was pulled through each of the coils. The FTIS software also enables the analyze to output remaining thickness and radial growth measurements at any location in the coil. The limitations were that the coil had to be filled with water in order to apply the FTIS.