« After last week’s testing of Booster 9, the water deluge system, and other important activity at Starbase, the #Starship program is now moving into a critical testing phase where Booster 9 will begin static test firings of the Raptor engines with the water deluge in use.»
https://www.nasaspaceflight.com/2023/08/starship-booster-9-critical-testing-phase/