NASA performs Artemis II seal repairs and analysis post-wet dress
Image: Primary NASA technicians replaced two seals around fueling lines on the Space Launch System rocket after a wet dress rehearsal for the Artemis II mission. The work addressed higher than allowable hydrogen gas concentrations observed during the Feb. 3 test. Access to the tail service mast umbilical on the mobile launcher occurred after the tanks were drained of cryogenic propellant.
Engineers are analyzing the removed seals and developing plans to address all issues ahead of the next rehearsal. Reconnecting the interfaces is expected to finish on Monday, Feb. 9. Additional testing at Stennis Space Center in Mississippi will evaluate plate dynamics.
Options to test the repairs before the next wet dress are under review. NASA updated several operations for the rehearsal to emphasize fueling activities. The agency eyes March as the next potential launch opportunity but will not set a targeted date until after a successful rehearsal and data review.
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