U.S. Air Force Airman 1st Class Chelsea Glasscock, 435th Construction and Training Squadron Aircraft Arresting System Depot apprentice, works with Ämari Air Base personnel to return the system to its starting position during a Barrier Arresting Kit certification at Ämari AB, Estonia, March 17, 2021. The BAK is certified annually to test the stability and effectiveness of the system, which acts as a braking mechanism to stop the aircraft in the event of an emergency that would prevent the aircraft from performing a standard landing. (U.S. Air Force photo by Airman 1st Class Jessi Monte)
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