Tail Blades U.S. Air Force Senior Airman Donald Sweeney performs preflight checks on an HH-60 Pave Hawk helicopter on Bagram Airfield, Afghanistan, Dec. 26, 2015. Sweeney is a crew chief assigned to the 455th Expeditionary Aircraft Maintenance Squadron. U.S. Air Force photo by Tech. Sgt. Robert Cloys SHARE: Download: Full Size (1.88 MB) Tags: Pedro, 455th AEW, .50 Cal, Bagram, Photo Essays, Flare, Bagram Airfield, 455 EAMXS, 83rd ERQS, preflight, Pave Hawk, afghanistan, Freedom's sentinel, HH-60, Maintenance, HELICOPTER, m2, All images Credit: Tech. Sgt. Robert Cloys VIRIN: 151226-F-CX842-004.JPG Photo Gallery