The December 2004 report, by Conley Perry, retired NASA division chief for quality engineering at the Johnson Space Center here, said it was obvious that Lockheed's external tank engineers "did not do a thorough job" of identifying the quirks and variations that can occur when foam is applied by hand. And despite the space agency's insistence that would
not allow scheduling pressures to dictate return
to flight before it was safe, Mr. Perry wrote.

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