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Staff Sgt. Josh Serafin pulls an audio cord while he completes a pre-flight check

Staff Sgt. Josh Serafin, a B-52 Stratofortress crew chief with the 5th Aircraft Maintenance Unit, pulls an audio cord while he completes a pre-flight check with the aircrew on a B-52 at Minot Air Force Base, N.D., Jan. 26, 2017. Serafin communicates directly with aircrew prior to takeoff to ensure each requirement is thoroughly checked and cleared safe for takeoff. (U.S. Air Force photo by Tech Sgt. Vernon Young Jr.)

PHOTO BY: TECH SGT. VERNON YOUNG JR.
VIRIN: 170126-F-IO684-9454.JPG
FULL SIZE: 1.75 MB
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This photograph is considered public domain and has been cleared for release. If you would like to republish please give the photographer appropriate credit. Further, any commercial or non-commercial use of this photograph or any other DoD image must be made in compliance with guidance found at https://www.dimoc.mil/resources/limitations, which pertains to intellectual property restrictions (e.g., copyright and trademark, including the use of official emblems, insignia, names and slogans), warnings regarding use of images of identifiable personnel, appearance of endorsement, and related matters.