NASA TO AIR NORTHROP GRUMMAN FSB-1 TEST FIRE FROM UTAH

"....Teams have installed the flight support booster (FSB) for later versions of the solid rocket boosters on NASA’s Space Launch System (SLS) rocket into the test stand in Promontory, Utah. NASA and Northrop Grumman, the SLS booster lead contractor, will conduct a two-minute, full-duration test with the booster on Sept. 2. Engineers will use data from the test to evaluate new materials and developments for SLS rockets that will power NASA’s Artemis lunar missions beyond Artemis III. Credit: Northrop Grumman..."

https://www.spaceflightinsider.com/organizations/northrop-grumman/nasa-to-air-northrop-grumman-fsb-1-test-fire-from-utah/