70th Air Refueling Squadron trains on mid-air refueling during AFSC UTA Published Feb. 26, 2015 By Senior Airman Sajjan Singh 349th Air Mobility Wing Public Affairs TRAVIS AIR FORCE BASE, Calif. -- The 70th Air Refueling Squadron trained on their mid-air refueling procedures during the AFSC Training weekend on Feb. 21, 2015.