Stock Photo - 04/23/2002 __ The STS_111 crew looks at the replacement pitch roll joint for the SSRMS Canadarm 2 they will be installing on the mission to the International Space Station. The crew comprises Commander Kenneth Cockrell, Pilot Paul Lockhart, and Mission Specialists Franklin Chang_Diaz and Phillippe Perrin, who is with the French Space Agency. Part of the payload on mission STS_111 is the Mobile Base System MBS, which will be installed on the Mobile Transporter to complete the Canadian Mobile Servicing System, or MSS. The mechanical arm will then have the capability to inchworm from the U.S. Lab Destiny to the MSS and travel along the truss to work sites. STS_111 is the second utilization flight UF_2 to the Space Station and will also carry the Expedition 5 crew to replace Expedition 4. Launch is scheduled for May 30, 2002