Johnson Space Center, Houston
Kennedy Space Center, Fla.
June 24, 2002
NASA Managers Delay STS-107 Launch
NASA managers today temporarily suspended launch preparations for Space Shuttle Columbia until they have a better understanding of several small cracks found in metal liners used to direct the flow inside main propulsion-system propellant lines on other orbiters in the fleet.
Columbia's launch on STS-107, previously planned for July 19, will be delayed a few weeks to allow inspections of its flow liners as part of an intensive analysis that is under way.
Recent inspections of Space Shuttle Atlantis and Space Shuttle Discovery found cracks, measuring one-tenth to three-tenths of an inch, in one flow liner on each of those vehicles. Some of the cracks were not identifiable using standard visual inspections and were only discovered using more intensive inspection techniques.
"These cracks may pose a safety concern and we have teams at work investigating all aspects of the situation," said Space Shuttle Program Manager Ron Dittemore. "This is a very complex issue and it is early in the analysis. Right now there are more questions than answers. Our immediate interests are to inspect the hardware to identify cracks that exist, understand what has caused them and quantify the risk. I am confident the team will fully resolve this issue, but it may take some time. Until we have a better understanding, we will not move forward with the launch of STS-107."
The impact of the investigation on other upcoming space shuttle launches has not been determined.
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