Overview
- Engineers reported interrupted helium flow to the Interim Cryogenic Propulsion Stage after the Feb. 19 wet dress rehearsal, with helium required for engine purging and pressurizing propellant tanks.
- NASA plans to begin the rollback as soon as Feb. 24 to diagnose and fix the issue in the VAB, where the necessary access is available.
- The agency has removed March from consideration for launch, with any April attempt dependent on troubleshooting results and verification testing.
- Identified April opportunities include April 1, 3, 4, 5, and 6, pending schedule alignment and readiness reviews.
- The crew—Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen—has exited quarantine, and NASA says a public briefing is expected in the coming days to outline next steps.