Clearly it broke. Was fixed, sort of but not actually, and failed. Observe, test, measure, analyse, mitigate (did I create a new acronym to add to the vast QC

Clearly it broke. Was fixed, sort of but not actually, and failed. Observe, test, measure, analyse, mitigate (did I create a new acronym to add to the vast QC vocabulary, OTMAM?). Scheduled replacement! Mitigate problems before they cause knock-on effects that shutdown a production line or endanger lives and livelihoods. (I do get the sarcasm in your reply, BTW.)