as large as golf balls had created around 1,000–2,000 divots in the tank's foam insulation, damaged at least one Ice Frost Ramp on the tank, and caused minor surface damage to about 26 heat shield tiles on Atlantis'''s left wing. On March 4, 2007, the STS-117 stack was similarly rolled back into the VAB. Following additional inspections, repairs to the orbiter and tank were carried out to return Atlantis to flight readiness. After completion of the repairs, Atlantis (along with her distinctly speckled external tank) was rolled out to pad 39A for the second time during the morning of May 15, 2007. A second Flight Readiness Review took place on May 30–31, 2007. The hail damage to Atlantis caused major changes to the shuttle launch manifest at that time, pushing STS-118 back to August 8, 2007 (which could not have flown until the installation of the S3/S4 truss segment carried by Atlantis was completed), STS-120 back to October 23, 2007, and Atlantis's return on STS-122 back to a targeted launch date on December 6, 2007. Atlantis on STS-122 eventually lifted off on February 7, 2008. Aging problem NASA announced that it is possible, albeit unlikely, that one of 24 Composite Overwrap Pressure Vessels onboard Atlantis could burst before launch, damaging the orbiter. A burst of a vessel during launch could have resulted in the loss of the shuttle and crew. NASA changed the launch procedure for Atlantis to counter this problem and reduce any risk to personnel and the shuttle. Mission timeline June 8 (Flight day 1 – Launch)Atlantis was launched on schedule at 23:38:04 UTC from launch pad 39A at the KSC with NASA launch commentator George Diller's words upon launch being "and Liftoff of Space Shuttle Atlantis, to assemble the framework for the science laboratories of tomorrow!". STS-117 was the first launch from launch pad 39A since the fateful STS-107 launch of Space Shuttle Columbia in 2003. All pre-launch processing proceeded normally, and the crew started to board Atlantis at 16:17 EDT (20:17 UTC). Crew boarding was completed at 20:58 UTC, and the hatch was closed at around 21:40 UTC. Weather was 80% go to support the launch. There were concerns about the weather at TAL abort landing sites, but Istres in France changed to go in time for the launch. The conditions at the other available site, Zaragoza, were observed to be improving. The third TAL site,