STAFF Sergeant (SSGT) Vernell Richardson (left), USAF, and Technical Sergeant (TSGT) Country McArthur, USAF, and SSGT Taylor Adams, USAF, 315th Aircraft Generation Squadron (AGS) reserve unit, Charleston AFB, South Carolina, prepare to work on a Pratt-Whitney F117-P-100 turbofan engine on a C-17A Globemaster III. They are working on the flightline at Rhein-Main Air Base, Germany, during Operation ENDURING FREEDOM