An air traffic controller with the 374th Operations Support Squadron looks out from the control tower at Yokota Air Base, Japan, June 4, 2017. (Air Force / Yasuo Osakabe) DOD’s global flight tracking system needs upgrades, Air Force says On top of creating new software, a contractor would be required to maintain and upgrade existing functions and applications in the DAIP. Jul 29, 2019 By Jackson Barnett