All Secure! Checkrides ensure cargo safe and in place
Senior Airman Steven Nicklas, boom operator from the 756th Air Refueling Squadron, Joint Base Andrews, Maryland, instructs crew members while loading cargo onto a KC-135R Stratotanker aircraft at Joint Base Andrews, Maryland, Aug. 1, 2017. Boom operators are required to pass an annual cargo-loading and offloading evaluation on the Stratotanker aircraft. (U.S. Air Force photo/Tech. Sgt. Erica J. Knight)