325 DAY IN THE LIFE: RISKY AND REWARDING SPACEWALKS—SPACE SHUTTLE MISSION STS-120/ISS-10A CHAPTER 18 3. The IV crew would robotically move Parazynski to the damage while Wheelock translated “free-float” (i.e., using his hands, grabbing handrails) to the base of the array to help provide clearance calls to Parazynski about his distance to the array. 4. Parazynski would install the first cufflink to carry some load in case the array started moving significantly. 5. Parazynski would clear the snag using his best judgment by pulling parts of it free using pliers, flicking small parts using a spatula, or trimming a hinge wire. Among other tools, he had with him a pair of borrowed Russian cutters called “dinocutters,” due to the dinosaur- like shape of them. 6. Only if necessary, Parazynski would cut out the snag by cutting the long vertical guidewire and allowing it to retract into a spooled reel at the base of the array where Wheelock would ensure a good feed into the reel. There was a concern that it would have trouble reeling in and snag some more therefore, the team had contingency procedures developed in case of additional loose wire to deal with. After the snag was in Parazynski’s trash bag, this would leave the top of the guidewire free, which was deemed acceptable. 7. Parazynski would shape the array back into a loosely accordion shape. 8. Parazynski would install the other four cufflinks. 9. Mission Control would command the array deploy very slowly with the crew watching (and the helmet camera sending back live in-situ video). Upper Blanket Box Lower Blanket Box Cut Hinge Wire as req’d – Leave ~ 8 inches of wire protruding from Hinge Guide Wire Stbd Port Upper Blanket Box Lower Blanket Box After the Hinge Wire has been cut and crimped, fold the blanket at the large damage site back in place Crimp Hinge Wire ~ 6 inches from Hinge Crimp Hinge Wire ~ 2 inches from the end Guide Wire Stbd Port Figures 17. High-level instructions sent to the crew based on the imagery available. Detailed procedures were also sent up.