In 2015, with coordinated efforts by fellow Spirit researcher Ty Sundstrom and the National Air & Space Museum, Norman took detailed measurements to correct errors he had discovered in the existing "Morrow" drawings. During the same trip, in an attempted search for Lindbergh's missing logbook, Norman used a video boroscope to inspect never-before seen areas of the fuselage and discovered an original pair of pliers thought to have been used by Lindbergh to adjust the fuel valves during flight.[40]