Computer support
ELLSWORTH AIR FORCE BASE, S.D. -- Senior Airman Joshua Ortiz-Mendoza, 28th Mission Support Group client systems technician, speaks to Senior Airman Santos Rodriguez, 28 MSG client systems technician, over the phone to troubleshoot a faulty printer located in the 37th Bomb Squadron, March 16. As part of his CST duties, Airman Ortiz-Mendoza performed several diagnostic tests on the printer, concluding it needed to be replaced. U.S. Air Force photo/Airman 1st Class Anthony Sanchelli)