checking engines
Tech. Sgt. Shawn Pharr, 304th Expeditionary Airlift Squadron and 62nd Aircraft Maintenance Squadron flying crew chief, conducts an engine check on a C-17 Globemaster III, Oct. 7, 2014, prior to departure from Christchurch, New Zealand to McMurdo Station, Antarctica. Pharr was one of 11 maintainers from the 62nd Airlift Wing who participated in the first rotation of the 2014 Operation DEEP FREEZE season. (U.S. Air Force photo/Master Sgt. Todd Wivell)