21. Visual inspection cannot determine if water is of appropriate quality.22. Customarily, the metal thickness is driven by the code requirements relating to visual inspection . 23. After the crash, the Federal Aviation Administration ordered visual inspections of the Airbus tails. 24. The company also uses visual inspections , including weekly overflights. 25. The National Aeronautics and Space Administration knew that visual inspections of wing panels were inadequate. 26. Reilly said, but not " visual inspection of an inmate's anal or vaginal cavity ." 27. We argued this train should not replace visual inspections . 28. Begin by giving the driveway a careful visual inspection . 29. It improves quality by reducing the variability of visual inspection while inspecting at production speeds. 30. The results have been validated through extensive comparison to published data and careful visual inspection .