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[i]"I'd call it an oxidizer-rich shutdown," former NASA astronaut Ken Bowersox, SpaceX's vice president of astronaut safety and mission assurance, told Space News in a Sept. 9 interview. "So because of that, when you get that mixture change happening, the temperatures can go up higher than you want inside the gas generator."
Bowersox added that "those temperatures could have damaged the turbines in the turbopump." That presents an obstacle for SpaceX, which eventually intends to reuse the nine Merlin engines that power the Falcon 9...
SpaceX spokeswoman Kirstin Brost Grantham said that the anomaly poses no threat to the company's upcoming COTS demonstration, a flight to the international space station (ISS) targeted for late November.[/i]
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