Gas Turbine System Technician (Mechanical) 1st Class Ezekiel Lopez, right, instructs Gas Turbine System Technician (Mechanical) 3rd Class Dmitry Thompson on how to properly shift a lube oil duplex filter aboard the Arleigh Burke-class guided-missile destroyer USS Ramage (DDG 61). Ramage is on a scheduled deployment supporting maritime security operations and theater security cooperation efforts in the U.S. 6th Fleet area of operations. (U.S. Navy Photo by Mass Communication Specialist 3rd Class Jackie Hart/Released)