Maintenance Day Published Jan. 30, 2023 By Airman 1st Class Juliana Londono 9 RW/PA BEALE AIR FORCE BASE, Calif. -- U.S. Air Force Senior Airman Zachary Knighton, 9th Maintenance Squadron aerospace propulsion technician, inspects a U-2 Dragon Lady motor Jan. 12, 2023, at Beale Air Force Base, Calif. The inspection served as a performance exam to ensure Airmen are following correct procedures. (U.S. Air Force photo by Airman 1st Class Juliana Londono)