ROBINS AIR FROCE BASE, Ga. – Austin Askew, 402nd Aircraft Maintenance Support Group Aerospace Ground Equipment Flight power support mechanic, changes the oil on an MEP-7 portable generator at Robins Air Force Base, Georgia, Aug. 19, 2021. The oil is changed every 125 hours of operation or annually, depending on which occurs first. (U.S. Air Force photo by Joseph Mather)