U.S. Marines replace a vibration sensor in a KC-130 Hercules aircraft. U.S. Marines replace a vibration sensor in a KC-130 Hercules aircraft at Al Asad Air Base, Iraq, on Oct. 6, 2006. The Marines are assigned to the Marine Aerial Refueler Transport Squadron 352. SHARE IMAGE: Download Image: Full Size (0.09 MB) Photo By: VIRIN: 889424-Z-YYG26-934.jpg Photo Gallery