Images: Keep C-17's flying [Image 1 of 13]
Photo by Staff Sgt. Katie Gieratz
Corey Seeber monitors valve checks on a C-17 engine test run at Joint Base Charleston Air Base C-17 engine test cell May 3. The all-civilian engine shop installs, inspects and repairs five to six engines a month. Seeber is an aviation maintenance technician with United Airlines.