2nd Lt. Mercedes Young, (middle) 49th Component Maintenance Squadron accessories officer in charge, watches two crew chiefs from the 311th Aircraft Maintenance Unit, Jan. 15, 2020, on Key West Naval Air Station, Fla. Young watched the crew chiefs prepare to change a brake on an F-16 to learn more about what flightline maintenance entails. (U.S. Air Force photo by Airman 1st Class Autumn Vogt)