Apply root cause analysis to a battery formation-yield drop without overfitting to the first clue.
Yield drop Formation yield falls from 94 percent to 81 percent in one shift while multiple process changes overlap. A rushed material blame could miss a process-control failure and let the issue repeat. RCA discipline Pattern first, cause second Root cause analysis compares facts across affected and unaffected units before choosing a corrective action. First clue Blame the new electrolyte drum. A corrective action that attacks recurrence, not just the latest symptom. A root cause must explain the observed pattern better than competing causes. 01 Describe 02 Compare 03 Verify Describe the problem Facts before theory
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