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[b]"Production fault" blamed for Progress failure[/b]
The Progress M-12M resupply spacecraft failed to reach orbit and the International Space Station (ISS) because of a fuel supply problem in the third stage of its Soyuz-U booster, Russia's federal space agency Roscosmos said on Thursday (Sept. 8), quoting the results of an investigation by a government commission.
According to Roscosmos, the fuel supply tract to the gas generator of the third stage was choked up "due to a production fault," ITAR-TASS reported.
"The analysis of the operating parameters of the third stage engine and the results of telemetric information provided a conclusion about decreased fuel consumption in the gas generator because of choked supply tract," Roscosmos said. "This resulted in incorrect operating conditions and decreased parameters of the engine which was stopped by the emergency engine stop command."
"The exposed production defect was accidental," the space agency said adding that the reason may be qualified as an isolated case only after checking all available engines.
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