U.S. Air Force Airman 1st Class Joshua Marnell, 7th Equipment Maintenance Squadron hydraulics system apprentice, connects a hose to the hydraulic test stand for inspection at Dyess Air Force Base, Texas, June 12, 2017. The hydraulic test stand is used to pressurize brakes, and check a variety of hoses, swivels and accumulators for leaks. (U.S. Air Force photo by Senior Airman Austin Mayfield)