Senior Airman Kenny Batallas, 374th Operations Support Squadron Aircrew Flight Equipment flight technician, prepares to perform an operations check on a new quick-dawn oxygen mask Jan. 25, 2017, at Yokota Air Base, Japan. Operation checks are performed by the 374th AFE flight regularly on every piece of aircrew life-support and survival item to ensure everything functions as required.

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Size: 1771px × 1129px
Photo credit: © Chuck Little / Alamy / Afripics
License: Licensed
Model Released: No

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