Senior Airman Brenden Pauly, 931st Maintenance Squadron crew chief,¬ and Senior Airman Cuong Nguyen, 931st MXS crew chief, conduct a boom telescoping tube chain and cable inspection Jan. 21, 2021, at McConnell Air Force Base, Kansas. The inspection ensures that the boom will lower and retract during air refueling missions. (U.S. Air Force photo by Airman 1st Class Zachary Willis)