A U.S. Air Force C-130 Hercules crew chief assigned to the 910th Airlift Wing conducts pre-flight checks before departing Joint Base Langley-Eustis, Va., Oct. 18, 2017. The 910th AW aircrew transported Langley Air Force Base medical team members and supplies in support of Hurricane Maria relief efforts. (U.S. Air Force photo by Tech. Sgt. Natasha Stannard)