In a tight spot: Maintenance Airmen hold confined space exercise
U.S. Air Force Senior Airman Jacob Williams, an aircraft fuel systems repair technician with the 379th Expeditionary Maintenance Squadron, looks into a mock fuel cell during a confined space training exercise at Al Udeid Air Base, Qatar, April 14, 2017. Given the possible dangers associated with working in a fuel cell, these Airmen counteract the risks by training in realistic scenarios. (U.S. Air Force photo by Senior Airman Cynthia A. Innocenti)