S123-E-006086 (13/14 March 2008) --- Astronauts Rick Linnehan (left), STS-123 mission specialist; and Garrett Reisman, Expedition 16 flight engineer, participate in the mission's first scheduled session of extravehicular activity (EVA) as construction and maintenance continue on the International Space Station. During the seven-hour and one-minute spacewalk, Linnehan and Reisman prepared the Japanese logistics module-pressurized section (JLP) for removal from Space Shuttle Endeavour's payload bay; opened the Centerline Berthing Camera System on top of the Harmony module; removed the Passive Common Berthing Mechanism and installed both the Orbital Replacement Unit (ORU) tool change out mechanisms on the Canadian-built Dextre robotic system, the final element of the station's Mobile Servicing System.