MCAS YUMA, Ariz. -- U.S. Marines with Marine Aviation Logistics Squadron (MALS) 13, calibrate aircraft electronics on Marine Corps Air Station (MCAS) Yuma, May 27, 2020. The calibration work center is responsible for maintaining mission readiness across all MCAS Yuma tenant squadrons and 6,000 items through calibration and equipment repair for aircraft electronics, armory gauges, and weapon test sets. (U.S. Marine Corps photo by Lance Cpl John Hall)