NASA Starts Fixing SLS Rocket Right on the Launch Pad, Not Going Back to VAB Yet

A few days after the American space agency killed our hopes of seeing the Space Launch System rocket soar to the sky this September, we were expecting the mammoth piece of tech to start rolling back to the Vehicle Assembly Building (VAB), so the issues discovered during two failed launch attempts could be fixed. Guess again.
NASA to fix some of the SLS issues right on the pad 9 photos
Photo: NASA
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Although during attempt 1 the main cause of the scrub was a faulty RS-25 engine, NASA is sending its best engineers in to have a look at and replace the quick disconnect seal between the liquid hydrogen fuel feed line on the mobile launcher and the SLS, which was the reason attempt 2 was canceled.

These engineers will be sent to the SLS as it sits right there on the pad, in an effort to “gather as much data as possible to understand the cause of the issue” while the hardware is under cryogenic conditions, something the VAB cannot offer. To allow these people to work there, and protect the rocket from the elements, an enclosure will be erected around the site.

It’s not clear yet how long replacing the seal will take, but NASA says it may return the rocket to the VAB for additional work. In fact, it kind of has to, as requirements for the certification on the flight termination system require the batteries to be reset, and the VAB is where that should be done.

As for the next launch date, there’s nothing certain about it yet. NASA will probably miss the current launch window period, which ends on October 4, but if it moves fast enough, it might get the thing flying between October 17 and October 31, when eleven launch opportunities line up.

November and December too come with launch opportunities, so we’re still in the cards to see Artemis I depart by the end of this year.
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About the author: Daniel Patrascu
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Daniel loves writing (or so he claims), and he uses this skill to offer readers a "behind the scenes" look at the automotive industry. He also enjoys talking about space exploration and robots, because in his view the only way forward for humanity is away from this planet, in metal bodies.
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