U.S. Army Reserve Chief Warrant Officer 2 Denver Gillham performs a pre-flight inspection on the main rotor of a UH-60 Black Hawk helicopter at Simmons Army Airfield, Fort Bragg, N.C., Aug. 29, 2013. Gillham has been an aviation warrant officer since 2009 after being an enlisted Soldier with another non-flying career field. The Army Reserve is looking to fill hundreds of warrant officer positions in both the aviation and non-aviation career fields. (U.S. Army photo by Timothy Hale/Released)