Hurrying before the sun goes down Published Oct. 27, 2009 GRISSOM AIR RESERVE BASE, Ind., -- Senior Airman Mark Peavler, an aircraft mechanic with the 434th Aircraft maintenance Squadron, hurries to wash an engine on the EC-135 before the sun sets and darkness descends. He was one of three volunteers who donated their off-duty time to help the Grissom Air Museum. (Courtesy photo)