83 DAY IN THE LIFE: THE MAKING OF A MISSION CHAPTER 4 when the crew ingressed the Cupola on Day 6 of the mission to ready it for the relocation. To ensure adequate airflow with the 7 m (23 ft) duct (Figure 18), the crew used a device to measure the airflow and found it to be much less than expected. Per flight rules, fewer crew members were permitted in the area. Next, the crew went in and installed a protective cover over the Cupola to thermally shield it during the relocation. Unfortunately, the cover could not be installed on the ground and launched into position because the vibrations caused by the launch were greater than the structure of the Cupola could withstand if the cover was in place. When crew members installed the cover, they noted that the clearance between the cover and some brackets was too small—a thin metal ruler barely fit between the bracket and the insulation. If the clearances were even tighter on the nadir port, the Cupola could not be mated. Figure 18. The 7-m (23-ft) long duct extended through Node 3 and into the Cupola to ensure proper airflow. Pictured are NASA astronauts Jeffrey Williams (center), Expedition 22 commander Terry Virts (left), STS-130 pilot and Nicholas Patrick, STS-130 mission specialist. The contingency teams, including Team 4 (see Chapter 20), roared to life to analyze the problem. There was only a small window of time before things such as the PMA3 relocation dropped off the mission if the ballet got backed up. The teams considered different options. Could they do the move without the cover? What was the expected clearance on the nadir port since the module had never actually been physically mated together? Would the motors have enough force to bend the brackets without damaging the structure if there was interference? The root of the problem quickly became apparent: to save file size, the computer models did not include bolts since thousands of bolts added megabytes to each drawing. What seemed like a small issue became a significant wrinkle. The mission was not placed on hold while that problem was being worked. While preparing Patrick’s space suit for the second EVA, the team discovered that the fan speed of the water pump was far less than expected. If it failed during the spacewalk, it could jeopardize his life and cause the flight control team to abort the EVA.