This quote is also from my addendum (supplement) to my first report. (Continued from previous day's quote. These quotes should explain more why I dubbed myself "The Last Inspector". Another item the FAA chose to ignore, at your peril.):
Also please investigate the "calibrated eyeball" inspection technique being used for tubing inspection of tubes built in our mockup tube manufacturing shop, that builds production tubes and NCR dash "M" tubes for PSD and elsewhere. Sure, we are very good at inspecting the tubing bends per laser tracker reports and the old adjustable jig, surface table, and plot system, but we use the "calibrated eyeball" method for everything else, such as ovality and protrusion of the tube beyond the swaged sleeve. Please investigate the tube mockup shop, and make sure we have the right tools to inspect the features I said we inspected with calibrated eyes only, among any others from the (document I.D.) series specs that we should be inspecting that I am unaware of due to my, and my coworkers, non-expert tube fabrication inspector status. The inspectors in the strut shop usually support the inspection of the tubes made in the mockup shop, so please ask them to show you the tools they use to inspect the ovality and protrusion of the tube beyond the swaged sleeve, among other dimensions you find that we should inspect.
The Last Inspector