it while the arrays were unfolded. The navigation computer would not allow them to do so, and forced a reboot of the main Russian command and control computer. The forced reboot triggered an alarm enunciating the problem to the crew and ground controllers. The issues appeared to have been resolved by the end of the day and the station's gyroscopes took over attitude control shortly after 8 pm CDT. That was followed by relocation of the Mobile Transporter in preparation ahead the next day's spacewalk. The crew or shuttle/station combined stack never was in danger throughout the troubleshooting efforts. June 13 (Flight day 6 – EVA 2) Flight day 6 saw mission specialists Patrick Forrester and Steven Swanson perform the second of four planned spacewalks. The main task of the spacewalk was to prepare the Solar Alpha Rotary Joint (SARJ) between the S3 and S4 Truss segments for rotation. The two spacewalkers and their crew mates were awakened at 13:08 UTC to begin the day's activities. Mission Specialists John Olivas and Sunita Williams helped Forrester and Swanson to get readied with the EVA. Commander Sturckow, pilot Archambault and Mission Specialist Jim Reilly worked the early steps of retraction of the 2B solar array wing, on the starboard side of the P6 Truss. They sent commands and monitored the retraction. After exiting Quest at 18:03 UTC the two spacewalkers moved up the P6 Truss to monitor the retraction of the 2B Sollar Array and to assist if required. Forrester, was in a foot restraint on the station's Canadarm2, and Swanson had specially-prepared tools to use to help the panels of photovoltaic cells fold properly. Flight controllers were able to get seven and a half of the 31.5 solar array bays folded. Then, Forrester and Swanson were able to poke and prod another five and a half bays worth of panels into folding correctly (some 45 feet) before moving on to the SARJ. Forrester and Swanson completed EVA 2 with mixed results. The duo removed all of the launch locks holding the SARJ in place. The spacewalkers had planned to remove the SARJ's launch restraints as well, but ran into problem when Forrester tried to install a drive-lock assembly. They discovered that the S3/S4 SARJ motor control circuits were wired in reverse. As such commands being sent to the drive-lock assembly were actually being received by a drive-lock assembly that was installed