Airman Yoon Kim, right, and Senior Airman Jonathan Boone, 11th Logistics Readiness Squadron vehicle maintainers, inspect the limiter on a runway broom during an operations check at Joint Base Andrews, Md., April 2, 2015. Ops checks are made to ensure equipment is functioning properly and safely. (U.S. Air Force photo/Airman 1st Class Ryan J. Sonnier)