How deep should we probe on Root Cause Analysis efforts in unknown?
A true and meaningful Root Cause Analysis always believes that all failures have a physical cause but all physical cause are triggered by humans, which means that there is always a human error involved, but humans are negatively influence by latent forces. Therefore the goal of any root cause analysis is to expose and identify these latent causes of failures. The depth of probe on any Root Cause Analysis efforts should end once the Latent Causes is reached. During one of my training on Lubrication and Oil Contamination Control Class, a manager hand me an oil analysis report on one of their compressors and when I scan through the report I was totally shocked that I almost slipped the report out of my hand. I told the person who handed the report if your compressor fails frequently. He said NOT THIS TIME, and I said that I do not believe you unless otherwise you are giving me a wrong report. Then he said, that our air compressor fails a lot before when we are using mineral based oil and
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