Engineers Sure Repairs Will Not Delay Shuttle
NASA engineers are guaranteeing that damage to the flametrench will be fixed before the August rollout of Atlantis for an early Octoberlaunch to repair the Hubble Space Telescope.
"We'll be fixed and ready to go by that point,"assistant launch director Ed Mango said.
After Discovery'sMay 31 launch, NASA engineers foundthat some 5,300 bricks had been blown out of a wall in the flame trench,traveling as far as 1,800 feet to a perimeter fence and beyond.
Bits of asbestos filler material also were found in thedebris.
Technicians have done tap testing to find loose bricks andhave drilled two-inch test holes into several bricks to determine whether theywill hold during the next launch.
NASA favors fixing the gash with a spray-on heat resistantmaterial. Replacing the nearly 50-year-old bricks would be difficult.
"They're not readily available," said structuralengineer Perry Becker, who is in charge of NASA's investigation and repairplan.
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Becker said the concrete wall of the flame trench is notdamaged, but it must be protected from the shuttle's 6 million pounds ofthrust.
"The bricks are there to protect the concrete wallbehind them, so if you don't have any bricks, eventually it's going to beeroding the concrete behind it," he said.
A repairplan will be presented for approval by the end of the month.
Becker said the three-foot concrete wall behind the bricksis solid and the Apollo-era launch pad is structurally sound.
Published under license from FLORIDA TODAY. Copyright ?2001 FLORIDA TODAY. No portion of this material may be reproduced in any waywithout the written consent of FLORIDATODAY.
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Patrick passed away in 2022 after a long career as an award-winning freelance journalist and writer covering science, technology, and the U.S. space program. In 2005, Patrick went to work as a business writer and senior reporter at Florida Today in Melbourne covering technology companies and space science, expanding his skills to include videography. As a metro editor at the paper, he instructed reporters to file stories from out in field using wireless tech. His work appeared at Space.com and numerous other online sites and publications.