Army Staff Sgt. Steve Spalding, crew chief with Bravo Company, 2-104th General Support Aviation Battalion, 28th Expeditionary Combat Aviation Brigade, Pennsylvania National Guard, performs pre-flight checks on a CH-47 Chinook helicopter at McEntire Joint National Guard Base, Sept. 14, 2018.

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Size: 1735px × 1153px
Photo credit: © Bob Collet / Alamy / Afripics
License: Licensed
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