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June 22, 2011
Astronaut Jeffrey N. Williams, who went on to spend over six hours outside the Space Shuttle Atlantis with the International Space Station, gets assistance and support in Atlantis' airlock from astronaut Susan J. Helms. Astronauts Williams and James S. Voss started the spacewalk early and remained ahead of schedule throughout. The astronauts secured a United States-built crane that was installed on the station last year; installed the final parts of a Russian-built crane on the station; replaced a faulty antenna for one of the station's communications systems; and installed several handrails and a camera cable on the station's exterior.

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