On October 15, 2014 American astronauts Gregory Wiseman and Barry Wilmore performed the spacewalkto replace a broken voltage regulator in one of eight solar power channels to restore the lab’s electrical grid to normal operation. They also worked through a list of lower-priority tasks, removing a broken camera, installing a replacement at a different location and relocating a support mast and wireless transmitter assembly in preparation for spacewalks next year. The EVA lasted 6 hours and 34 minutes.
