Tech Sgt. Trevor Gray, 434th Maintenance Group repair and reclamation technician, reinstalls a stabilizer trim actuator on Jan. 8, 2017 at Grissom Air Reserve Base, Ind. The stabilizer trim actuator controls the horizontal stabilizer which along with the elevator the pilots use to adjust the pitch, or up and down movement, of the aircraft’s nose. (U.S. Air Force photo/Staff Sgt. Dakota Bergl)