After a successful Wet Dress Rehearsal (WDR), NASA Exploration Ground Systems (EGS) rolled back the Space Launch System (SLS) rocket to the Vehicle Assembly Building (VAB), which should be the last time this is performed before launch. The Artemis 1 vehicle will now undergo final readiness checks and launch preparations ahead of its debut flight planned for later this year.
Currently, NASA is targeting the launch window between August 23 and September 6 for the launch of Artemis 1, but there is still work to be done before that first flight, which could impact the schedule going forward.
The recent test revealed a leak in the hydrogen bleed line connection that needs to be fixed in the VAB, as well as the final checkouts of the rocket and the testing and arming of the Flight Termination System. To fix the hydrogen leak, NASA will replace a seal on the quick disconnect of the tail service mast umbilical (TSMU).