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The problem in the eight-inch hydrogen line has been traced to a cavity in the quick disconnect where the flight side and ground side plates join.
NASA engineers attempted three times to troubleshoot the problem during this afternoon’s tanking process.
This included twice shutting down the flow of liquid hydrogen to the core stage tank and allowing the system to warm up, in an attempt to reseat the quick disconnect and get a proper seal.
Unfortunately, none of the procedures appear to have worked. Following a recommendation for a “no-go” from the launch team, Artemis launch director Charlie Blackwell-Thompson announced that the launch will once again be postponed.
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