Senior Airman Eric Ackerberg, left, and Senior Airman Jared Becker, right, 11th Civil Engineer Squadron firefighters, hold a section of pipe as they lower an Airman into an elevator shaft during elevator rescue training May 6, 2015, on Joint Base Andrews, Md. Using a higher hinge-point makes transitioning over a ledge significantly easier for the person rappelling. (U.S. Air Force photo by Senior Airman Preston Webb)