Boeing’s Starliner astronaut capsule won’t be launching to the International Space Station until it’s gone through “deeper-level troubleshooting” to fix an issue with stuck propulsion system valves, according to a press release from the company. That troubleshooting means removing the capsule from the Atlas V rocket it’s been coupled to and bringing it back to Boeing’s facility. The Verge reports: The spacecraft’s initial launch attempt late last month was scrubbed hours before liftoff after engineers noticed a group of fuel valves in the Starliner’s propulsion section weren’t positioned as programmed. That valve issue, whose cause remains a mystery, is the latest engineering predicament to curse Starliner nearly two years after the capsule failed its first attempt to reach the space station in 2019. With a clear fix to the valve issue still elusive, having to take Starliner back to the hangar will push Boeing’s plans to launch this month off the table, and a logjam of other scheduled flights could extend the delay by several months.
According to Boeing VP John Vollmer, the company will “continue to work the issue from the Starliner factory and have decided to stand down for this launch window to make way for other national priority missions.” The new launch date will have to be jointly decided by NASA, Boeing, and the United Launch Alliance after the issue with the valves has been found and fixed. Boeing has said software isn’t to blame for Starliner’s new valve problem, and indicated in past statements that it’s a more complex hardware issue.
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