ON THE CIRCUIT U.S. Air Force Tech. Sgt. James Erickson inspects the circuit card of a C-17 Globemaster III aircraft at March Air Reserve Base, Calif., Feb. 18, 2008. Erickson is an avionics technician assigned to the 452nd Maintenance Squadron. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 410565-D-NVP53-806.jpg Photo Gallery