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U.S. Air Force Senior Airman Ryan Jelstrom, 774th Expeditionary Airlift Squadron aircrew flight equipment specialist inspects a pilot’s oxygen mask on a C-130J Super Hercules at Bagram Airfield, Afghanistan June 18, 2014. As part of aircrew flight equipment, Jelstrom and his team work 24-hours a day to ensure all aircrew equipment is serviceable for all the C-130J Super Hercules aircraft here. Jelstrom is deployed from Dyess Air Force Base, Texas and a native of Cayucos, Calif. (U.S. Air Force photo by Staff Sgt. Evelyn Chavez/Released)
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