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August 16, 2011
Astronaut Charles J. Camarda, STS-114 mission specialist, performs a middeck evaluation of the mechanical "plug" option for Reinforced Carbon-Carbon (RCC) repair aboard the Space Shuttle Discovery. Camarda used special pre-designated tools to accomplish the procedure, along with round thin, flexible 7-inch-diamter carbon-silicon cover plates designed to flex up to 0.25 inch to conform to the wing leading edge RCC panels, a hardware attachment mechanism similar to a toggle bolt and sealant.

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