Staff Sgt. Luis Rosa, 380th Expeditionary Maintenance Group RQ-4 Global Hawk and U-2 Dragon Lady quality assurance inspector, inspects a fire hydrant in an aircraft hangar at Al Dhafra Air Base, United Arab Emirates, March 12, 2019. QA Airmen serve as the primary technical advisory agency in the maintenance organization, assisting maintenance supervision at all levels to identify, validate and/or resolve workmanship, proficiency and/or compliance issues impacting mission generation. (U.S. Air Force photo by Senior Airman Mya M. Crosby)