(CNN) — NASA officials are delaying the next launch attempt for its lunar megarocket Artemis I for four more days until September 27, the space agency announced Monday.
The Artemis mission team had previously been targeting September 23, and October 2 is a potential backup date that is “under review,” according to NASA.
The space agency is still working on a problem with the rocket, called the Space Launch System, or SLS, which leaked when it was being fed with supercold liquid hydrogen during the final launch attempt at the Kennedy Space Center in Florida on Saturday, September 3. Repair work in the area of the hydrogen leak occurred over the weekend, according to NASA.
The space agency had been working to test the system that powers liquid hydrogen on September 17, but the date for that cryogenic test has now been pushed back to September 21, NASA noted on its Artemis blog.
“The updated dates represent careful consideration of multiple logistical issues, including the added value of having more time to prepare for the cryogenic demonstration test and, subsequently, more time to prepare for launch. The dates also allow managers to ensure that crews have sufficient rest. and to replenish supplies of cryogenic propellants,” NASA shared in the blog post.
The test on September 21 will include an engine purge test, according to the agency. The mission team scrapped the first Artemis I launch attempt on August 29 largely because of a problem encountered during engine purging, which cools the engines for launch, which officials believe was due to a sensor. defective.
The September 27 release window is 70 minutes long, shorter than the 120-minute window available on September 23.
NASA officials said the space agency continues to provide information to the Eastern Range, which must grant a waiver to allow the rocket to remain on the launch pad.
“NASA continues to honor the Eastern Range process for review of the agency’s request for an extension to the current test requirement for the flight termination system and is providing additional information and data as needed. In parallel, the agency continues with preparations for cryogenic demonstration testing and potential launch opportunities, should the application be approved,” the blog said.
— CNN’s Jackie Wattles contributed to this story.