Airman 1st Class Chad Bowen inspects C-17 Globemaster III aircraft instrumentation and navigation systems batteries. Air Force Airman 1st Class Chad Bowen visually inspects C-17 Globemaster III aircraft instrumentation and navigation systems batteries for corrosion at the 374th Maintenance Squadron Accessories Flight, Yokota Air Base, Japan, on June 23, 2005. Bowen, an electrical and environmental technician, will also ensure that the battery voltage is at the correct level. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 454442-S-BPB17-300.jpg Photo Gallery