A member of the 317th Aircraft Maintenance Squadron performs a preflight inspection on a C-130J Super Hercules aircraft at Dyess Air Force Base, Texas, April 5, 2021. Crew chiefs are tasked with ensuring the aircraft is mission ready by conducting day-to-day maintenance that includes diagnosing malfunctions, replacing components and detailed inspections. (U.S. Air Force photo by Staff Sgt. David Owsianka)