Following multiple tests of critical fuel for the next-generation Space Launch System (SLS), NASA has decided to complete the rocket’s “wet dress rehearsal” at a later date.Late Saturday, the agency announced it would move SLS off the launch pad and back into the Kennedy Space Center’s Vehicle Assembly Building to give it a gaseous nitrogen supply to complete a critical upgrade.
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According to Space News, nitrogen supply issues have delayed two previous countdown drills. NASA will also use the opportunity to replace a faulty helium check valve and fix a minor hydrogen leak that technicians found in an “umbilical” fuel line in the rocket’s mobile launch tower. “During this time, the agency will also review timelines and options to demonstrate propellant loading operations prior to launch,” NASA said. It pledged to share more about the decision at a news conference scheduled for April 18. information, and its plans to move forward”.