Air Force SSgt John Shaw works to repair the engine of a C-130, on Jan. 24, 2008 at Naval Air Station Joint Reserve Base, Carswell Field, Fort Worth, TX. SSgt Shaw a memeber of the 136th Maintence Squadron, Texas Air National Guard strives to maintain the outstanding safety record and mission capability of the 136th Airlift Wing. (U.S. Air Force photo/ TSgt Craig Lifton) (released)