Independent Medical Duty Technician Air Force Staff Sgt. Cassidy McCurdy, an independent medical duty technician with the 51st Medical Group, poses for a photo at Osan Air Base, South Korea, Dec. 21, 2017. Air Force photo by Staff Sgt. Franklin R. Ramos SHARE IMAGE: Download Image: Full Size (1.62 MB) Photo By: Staff Sgt. Franklin R. Ramos VIRIN: 171221-F-FV476-022.JPG Photo Gallery