during EVA 1. So one launch lock restraint was left in place to prevent the possibility of undesired rotation. EVA 2 marked the 85th spacewalk devoted to station assembly and maintenance. As EVA 2 progressed, Mission managers approved a repair task for the damaged thermal blanket to be carried out during the next spacewalk, EVA 3. Overnight the Russian flight controllers also worked to resolve the problem with the Russian segment computers. During the day, with the shuttle's propulsion providing backup, the station's control moment gyroscopes were handling attitude control. June 14 (Flight day 7) A computer malfunction on the Russian segments of the ISS occurred at 06:30 UTC and left the space station without orientation control. A successful restart of the computers resulted in a false fire alarm which awakened the crew at 11:43 UTC. Engineers theorized that the new S4 solar array, or components in the circuitry delivering that power to the Russian segment of the ISS, triggered some subtle change in the ISS electrical grid. The solar array blanket atop the P6 truss was furled to a little more than half its original length by the Atlantis and the station crews. Commander Rick Sturckow, along with Pilot Lee Archambault, Mission Specialist Sunita Williams and Flight Engineer Clayton Anderson, meticulously retracted the solar array blanket another three bays worth of panels. The crew carefully sent commands to retract the array as much as possible ahead of EVA 3. By last count, 15 and a half of the 31 and half bays remained to be folded into a 20-inch-deep protective box. Mission Specialists James Reilly and John Olivas completed a review of procedures for EVA 3. Before going to sleep, the crew also talked about the mission with radio and television stations. After that Reilly and Olivas slept in the Quest Airlock for spacewalk pre-breathe campout protocol. June 15 (Flight day 8 – EVA 3) The crew's wakeup call came at 7:41 am CDT. Flight day 8 was dedicated to mission's third spacewalk (EVA 3) to repair the thermal blanket on Atlantis and assist in folding up a solar array on the space station. Spacewalkers James Reilly and John Olivas began EVA 3 when the two astronauts switched their spacesuits into internal battery power and exited into space from the Quest airlock. It was the 86th EVA dedicated to ISS assembly and maintenance and the ninth for year 2007.