Senior Airman Donnell Johnson, 59th Medical Logistics and Readiness Squadron biomedical equipment technician, uses a multimeter to check voltage on a circuit board during a service call Nov. 17 at the U.S. Air Force Post Graduate Dental School on Joint Base San Antonio-Lackland, Texas. A biomedical equipment technician ensures medical equipment is serviceable, safe and properly configured to meet the wartime and peacetime missions of the Air Force Medical Service. (U.S. Air Force photo/Staff Sgt. Jason Huddleston)

Senior Airman Donnell Johnson, 59th Medical Logistics and Readiness Squadron biomedical equipment technician, documents a service call Nov. 17 at the U.S. Air Force Post Graduate Dental School on Joint Base San Antonio-Lackland, Texas. Biomedical equipment technicians enable the 59th Medical Wing to provide world-class patient care to active-duty members, dependents, retirees and their families. (U.S. Air Force photo/Staff Sgt. Jason Huddleston)

Senior Airman Donnell Johnson, 59th Medical Logistics and Readiness Squadron biomedical equipment technician, solders load cell wires Nov. 17 at the Wilford Hall Ambulatory Surgical Center on Joint Base San Antonio-Lackland, Texas. Load cells are used in electronic scales to measure weight and display the weight digitally. (U.S. Air Force photo/Staff Sgt. Jason Huddleston)

Senior Airman Donnell Johnson, 59th Medical Logistics and Readiness Squadron biomedical equipment technician, uses a vise to hold a load cell wire in place Nov. 18 at the Wilford Hall Ambulatory Surgical Center on Joint Base San Antonio-Lackland. The 59th MLRS helps the 59th Medical Wing deliver quality health care to patients by providing the organization with best-value materiel, services, transportation, equipment and facilities in a safe and secure environment. (U.S. Air Force photo/Staff Sgt. Jason Huddleston)

Senior Airman Donnell Johnson, 59th Medical Logistics and Readiness Squadron biomedical equipment technician, uses a multimeter to measure the resistance of a bulb Nov. 17 at the U.S. Air Force Post Graduate Dental School on Joint Base San Antonio-Lackland, Texas. Biomedical equipment technicians install, inspect, calibrate and repair medical equipment and support systems. (U.S. Air Force photo/Staff Sgt. Jason Huddleston)

Senior Airman Donnell Johnson, 59th Medical Logistics and Readiness Squadron biomedical equipment technician, sifts through his tool kit during a Nov. 17 service call at the U.S. Air Force Post Graduate Dental School on Joint Base San Antonio-Lackland, Texas. The 59th MLRS BMET section is comprised of scheduled and unscheduled maintenance teams, initial inspectors, contracting services, quality assurance, information technology and technical assessment services. (U.S. Air Force photo/Staff Sgt. Jason Huddleston)