Patriot Work A UH-60 Black Hawk maintenance technician checks the tail rotor during pre-flight maintenance checks at the Ralph Wien Memorial Airport in Kotzebue, Alaska, April 14, 2018. Military personnel accomplished critical mission training. Air Force photo by 1st Lt. Rashard Coaxum SHARE: Download: Full Size (2.15 MB) Credit: 1st Lt. Marquel Coaxum VIRIN: 180414-F-IN700-0132C.JPG Photo Gallery