Sgt. Molly Moore, a UH-60 Black Hawk crew chief for Task Force Iron Knights, 2nd Battalion, 501st Aviation Regiment, 1st Combat Aviation Brigade, 1st Armored Division, inspects the number two hydraulic pump filter on her aircraft for debris during a hydraulic system flush to remove contaminates, Jan. 8, 2015, Spriggs Airfield, Monrovia, Liberia. This ensures pilots are able to control the aircraft while conducting missions in support of Operation United Assistance in Liberia.