Aircraft complete certification

  • Published
  • 374th Air Base Wing Public Affairs
A U.S. Air Force Airman from the 374th Civil Engineer Squadron ties a knot on the aircraft arresting system at Yokota Air Base, Japan, June 24, 2015. An annual certification check's the integrity of the barriers hydraulic system and the system as a whole. (U.S. Air Force photo by Senior Airman David Owsianka/Released)