Army Sgt. Benjamin Stocker, Colorado National Guard CH-47 flight engineer and mechanic, pushes a cotter pin into place Feb. 19, 2016, at the Army Aviation Support Facility on Buckley Air Force Base. The cotter pin, one of the parts Stocker is responsible for, helped secure the droop stop spring. ( Air Force photo by Airman 1st Class Gabrielle Spradling/Released)

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Size: 3656px × 2518px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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