ISS crew finish space station repair of malfunctioning power unit
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Buy SPH photosWASHINGTON (AFP) - Two International Space Station (ISS) crew members on Wednesday successfully completed a spacewalk to install a new power switching unit, the National Aeronautics and Space Administration (Nasa) space agency said.
American Sunita Williams and Japan's Akihiko Hoshide had to contend with a sticky bolt that prevented them from completing the installation in a previous spacewalk last week.
The ISS has four of the so-called Main Bus Switching Units, each weighing 100kg, which relay electricity from the station's solar array wings.
The malfunctioning power unit had deprived the space station of power from two of the eight solar wings, forcing crew members to switch off certain equipment on board.
