From what I’ve read some of the safety systems did not give real-time feedback and the critical error occurred because the operators didn’t know they were in tr

From what I’ve read some of the safety systems did not give real-time feedback and the critical error occurred because the operators didn’t know they were in trouble due to lack of real-time feedback. I’m not an engineer and know nothing of these things but the test was not unauthorized and it wasn’t an experiment. As far as I read about the accident.