Staff Sgt. Dustin Sutton, 9th Aircraft Maintenance Squadron crew chief, preforms preflight checks on a U-2 Dragon Lady April 16, 2018 at Beale Air Force Base, California. Sutton is the dedicated crew chief on the aircraft “black-letter jet” and was in support of the last zero discrepancy jet in 2015. U.S. Air Force photo by Senior Airman Tristan D. Viglianco)