New York (CNN Business)NASA has 2 caller dates successful caput — September 23 oregon September 27 — for the adjacent effort astatine launching its monolithic caller satellite rocket connected an uncrewed trial mission. But determination are inactive respective things that could basal successful the mode of getting the Artemis I ngo disconnected the ground, immoderate of which could propulsion the motorboat day backmost further.
NASA is trying to enactment done a leaky substance occupation with the rocket, called the Space Launch System oregon SLS. During the last motorboat attempt astatine the Kennedy Space Center successful Florida connected Saturday, September 3, the rocket sprung a large leak arsenic it was being fueled up with super-chilled liquid hydrogen.
And portion the rocket is inactive connected the pad, NASA is looking to troubleshoot that contented by repairing and replacing immoderate seals earlier moving tests to marque definite each the leaks are plugged, NASA officials said astatine a Thursday property conference.
It's not yet wide however agelong that volition take.
Then, there's the contented with certification. The US Space Force, an limb of the military, inactive oversees each rocket launches from the United States' East Coast, including NASA's Florida motorboat site, and that country is known arsenic the "Eastern Range."
The officials astatine the scope are tasked with making definite there's nary hazard to radical oregon spot with immoderate motorboat attempt. And that means the Eastern Range besides indispensable springiness NASA the thumbs up that the rocket's Flight Termination System — a strategy that volition fundamentally destruct the rocket mid-air if it veers disconnected people and starts heading successful a populated absorption — is acceptable to fly.
That strategy relies connected batteries, however, that, nether existent rules, indispensable beryllium recharged astatine a adjacent indoor installation earlier the recently projected motorboat dates arrive.
NASA is hoping to get a waiver connected that rule. But it's not yet wide erstwhile oregon if that petition volition beryllium granted. If NASA does not get that waiver approval, the SLS rocket volition person to beryllium rolled disconnected the pad and backmost into the adjacent Vehicle Assembly Building, triggering much delays.
"If they determine that is not the close happening to do, we evidently volition enactment that and basal down and look for our adjacent motorboat attempt," Jim Free, subordinate head for NASA's Exploration Systems Development Mission Directorate, said astatine the Thursday property conference.
"But we inactive volition property with the tanking test," helium said, referring to the tests NASA plans to tally to hole the hydrogen leaks portion the rocket is inactive connected the pad.
The Space Force's Eastern Range said successful a connection lone that it "will reappraisal NASA's request." It declined to stock details connected timing.
On Thursday, NASA did springiness immoderate penetration into what it's discovered astir the leak issue, however. The abstraction bureau had already revealed that determination was an "inadvertent pressurization of the hydrogen line," putting it nether 60 pounds per quadrate inch of unit alternatively than the 20 pounds per quadrate inch they'd hoped, Michael Sarafin, Artemis Mission Manager, said Saturday.
It's inactive not yet wide if that over-pressurization is what caused the leak, but NASA does cognize wherefore the over-pressurization occurred successful the archetypal spot — and quality mistake was involved.
"Our absorption squad apologize to [the relation successful complaint of overseeing the process] due to the fact that we had made immoderate manual process changes betwixt the effort connected Monday and effort connected Saturday," Free said. "We practiced it during the week but they'd lone had a mates of chances. So we didn't arsenic a enactment team, enactment our our operators successful the champion spot we could person we trust truly heavy connected our recognition team."
That overpressurization is decidedly thing NASA wants to avoid, according to Free. NASA is looking for a "kinder and gentler, if you will, loading process."
For now, there's inactive a waiting crippled and a batch of "ifs" surrounding the timeline for the Artemis I launch. The eventual extremity of this task is to get the SLS rocket to orbit and deploy the Orion capsule, which is built for astronauts but volition alert bare for this trial mission. The capsule volition spell connected to orbit the satellite earlier making the 239,000 mile trek backmost home.
The Artemis I ngo is conscionable the opening of a programme that volition purpose to instrumentality humans to the satellite and yet onshore crewed missions connected Mars. Nelson said that the issues during the archetypal 2 scrubs person not caused immoderate delays to aboriginal Artemis programme missions.
CNN's Kristin Fisher and Ashley Strickland contributed to this article.