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With plans being put together for a contingency EVA on the STS-120 mission, contractor and NASA engineers and astronauts gather in JSC's Space Vehicle Mockup Facility on Oct. 31 to rehearse possible ISS solar array repair procedures to be used by STS-120 spacewalkers. From center left, David Mathers, Kevin Pehr and Scott Keepers assemble "cufflink" apparatuses like those the crew might fashion onboard to attach to the solar arrays and take the structural load off of the broken hinge.