APACHE MAINTANENCE U.S. Army Cpl. Christopher Spencer works on an Apache helicopter on the flight line of Camp Taji, Iraq, July 29, 2008. Spencer is a Apache helicopter mechanic assigned to the 4th Infantry Division's 4th Battalion, 4th Aviation Regiment, Combat Aviation Brigade. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 198067-P-BLY90-721.jpg Photo Gallery