NASA defers second SLS Green Run test
Only days after NASA said it was prepared to play out a subsequent static-fire trial of the Space Launch System center stage, the office declared Feb. 22 that the test would be postponed in light of a valve issue.
NASA said it was delaying the Green Run static-fire test, which had been booked for Feb. 25, subsequent to finding an issue with one of eight valves called "prevalves" related with the stage's four RS-25 principle motors. The valve, which supplies fluid oxygen, was "not working properly," NASA said in an explanation, however didn't expand on the issue.
Designers identified the issue during arrangements over the course of the end of the week for the test. NASA said it will work with Boeing, the superb worker for hire for the center stage, to "identify a path forward in the ...