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U.S. Air Force Staff Sgt. Eduardo Calderon, the sole arresting system certifier at the 173rd Fighter Wing in Klamath Falls, Oregon, emerges from an underground room after inspecting the emergency arresting system following a test of the system at Kingsley Field in Klamath Falls, Oregon, March 7, 2019. It is necessary to construct the rooms underground because the airfield is required to be flat and without obstruction, particularly this close to the active runway. (U.S. Air National Guard photo by Tech. Sgt. Jefferson Thompson)

PHOTO BY: Tech. Sgt. Jefferson Thompson
VIRIN: 190307-Z-NJ935-0543.JPG
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