U.S. Air Force Tech. Sgt. Yolanda Davis, 192nd Maintenance Squadron low observerable structural maintenance craftsman, prepares to sand a U.S. Air Force F-22 Raptor at Joint Base Langley-Eustis, Va., Feb. 14, 2017. If damages are found, low observable aircraft structure technicians must repair them to ensure the aircraft maintains its stealth capability. (U.S. Air Force photo/Senior Airman Areca T. Bell)