Artemis 1 Update: New (and Promising) Information Emerge About Last Saturday's Green Run Hot Fire Test...

NASA

SLS Green Run Test Update: Wet Dress Complete, Hot Fire Initiated (News Release)

Conservative safety measures for core stage ground-testing led to automatic test shutdown; hardware in excellent condition

Today, NASA provided an update on the January 16 Space Launch System (SLS) tests at Stennis Space Center, sharing the test outcomes and an explanation of the circumstances that led to the early test shutdown. Read the full NASA blog post here.

The NASA blog post states that “the shutdown after firing the engines for 67.2 seconds on Jan. 16 was triggered by test parameters that were intentionally conservative to ensure the safety of the core stage during the test.” The post also says, “The rocket’s hardware is in excellent condition.”

The conservative parameters that triggered Saturday’s shutdown are applicable only to the ground test, to ensure the protection of the core stage that is planned for use in NASA’s Artemis I mission.

The NASA update also stated that data analysis is continuing to help the team determine if a second Hot Fire test is required.

The January 16 tests were part of an eight-test campaign at Stennis Space Center to certify the SLS rocket cryogenic core stage manufacture and design. The NASA, Boeing and Aerojet Rocketdyne team successfully completed the seventh test, Wet Dress Rehearsal, before beginning the eighth and final test known as Hot Fire, when all four engines of the world’s most powerful rocket were ignited for the first time.

Source: Boeing