Senior Airman Jovie Abaya, 96th Aircraft Maintenance Unit aerospace propulsion technician, checks a technical order prior to beginning a training task at Barksdale Air Force Base, La., June 22, 2016. The technical order provided guidance and step by step instructions for replacing components on a B-52 Stratofortress engine. ( Air Force photo/Senior Airman Mozer O. Da Cunha)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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