NASA replaces seals that caused Artemis 1 launch failures

Teams at NASA have been hard at work following an aborted launch of the Artemis 1 mission early this month.

Since the aborted launches, NASA has been working to replace the seals that caused a liquid hydrogen leak on the Space Launch System’s core rocket stage.

The spacefaring agency says that it has replaced the eight inch line used to fill and drain hydrogen from the core stage and the four inch bleed line used to redirect some propellant during tanking operations. The rocket as well as the Orion capsule it is carrying to space are said to be in good condition.

“Coming up, technicians will reconnect the umbilical plates and perform inspections over the weekend before preparing for a tanking demonstration as soon as Saturday, Sept. 17. This demonstration will allow engineers to check the new seals under cryogenic, or supercold, conditions as expected on launch day and before proceeding to the next launch attempt,” NASA wrote in an update.

While NASA waits for an extension of the current testing requirement for the flight termination system, it’s teams are acting as if the launch is moving ahead. The means ensuring there is an adequate supply of propellants and gases used in tanking operations.

While the agency noted the 17th September above, it has requested the following launch windows:

  • 23rd September starting at 06:47 EDT and remaining open for two hours
  • 27th September starting at 11:37 EDT and remaining open for 70 minutes.

While this mission is only part one in a series of missions to the Moon, Artemis 1 is rather important. Not only is NASA testing the Space Launch System it will also be testing the Orion capsule on a round trip to the Moon.


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