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Marshall director: Center to blame for foam loss
By JAY REEVES Associated Press Writer HUNTSVILLE, Ala. -- The head of NASA's main propulsion center took responsibility Wednesday for the root cause of the Columbia disaster - foam peeling off the shuttle's huge external tank. Dave King, director of the Marshall Space Flight Center, also said the manager who oversaw the Columbia's tank had been removed in the latest personnel change announced since the tragedy. King, speaking during a news conference at the north Alabama center, defended Marshall employees as competent but said they made errors leading up to the loss of Columbia. Investigators said NASA failed to realize the danger posed by pieces of dense foam insulation coming off the tank and hitting the shuttle - a problem that dates back to the spacecraft's earliest flights in the '80s. "Anytime you're dealing with a system that's this complex, even competent people sometimes make mistakes," King said. "That's what happened here - we made a mistake. We missed it." King said external tank project manager Jerry Smelser, who investigators said used erroneous information to advocate a shuttle launch last year, had been removed from his position at Marshall and will retire at the end of this year. The bad information, presented at a meeting unrelated to the Columbia launch, appeared to be an "honest mistake" and not a purposeful attempt to make it appear the Marshall-managed tanks were safe despite years of problems, said King. Smelser, now serving as an adviser to the shuttle programs office at Marshall, did not immediately return a phone call seeking comment. He previously has declined comment on Columbia. King was deputy director at Marshall during the Columbia mission and later supervised the initial recovery of pieces of the orbiter. He became director when Art Stephenson stepped down less than four months after the accident killed seven astronauts. Marshall took much of the blame for the Challenger disaster in 1986, with investigators concluding the center's managers were isolated and fail to pass along concerns critical to mission safety. King said Marshall engineers were wrong to push for a shuttle launch last year despite knowing foam had come off a particularly troublesome area of the external tank. Managers believed they had solid criteria for supporting the launch despite the problem, he said. "Obviously, some of that was flawed," King said. Investigators concluded foam came off the same spot during the Columbia launch in January, hitting the shuttle's left wing and causing damage that led to its breakup over Texas on Feb. 1. "We bear the responsibility of the foam coming off the tank," said King. "We also bear the responsibility now of doing everything we can humanly do to make this vehicle as safe as we can." Denny Kross, who is managing the return-to-flight work at Marshall, is overseeing the external tank office, King said. Two other longtime NASA managers, Alex McCool and Sandy Coleman, are its acting directors. As the NASA center managing the shuttle's main engines, solid rocket boosters and external tank, Marshall will be in charge of much of the work to get the nation's shuttle's fleet back in space. King said the center already has approved plans to remove a small section of the tank foam blamed for bringing down Columbia. The foam prevents the buildup of ice on the tank, which holds super-cold fuel, but it will be replaced with heaters meant to do the same thing, he said. King and NASA Administrator Sean O'Keefe said the tank could be redesigned eventually, but the main job now is making the current design safe to fly. "We have a lot of work to do," said King. http://www.heraldtribune.com/apps/pb.../APN/308270873 |
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