K
Hello another FMEA Topic from me.
A couple of years ago we reviewed our Severity Occurence Detection Ranking.
A broad difference exsisted in using scales of 1 to 10.
As a improvement the scales were refined to 1 to 5.
Thus I have a Max RPN of 125.
This has worked fine and provides good repeatability of classification for different users and team members.
However a recent customer auditor discussed my ranking and has documented a requirement to review the ranking. His point is that the range does not allow the correct priority since a higher range would seperate items of greater importance.
However I demonstrated that because I took all RPN of the same value with the same action priority and had no RPN's above 12 on any process in our plant my process was working effectively. This could also be justified by the quality of product supplied to this customer meeting target requirements.
Yet I fear that this auditor wants me to install a 1 to 10 ranking and if this is not carried out on the corrective action report he will not close this issue and improve my supplier ranking.
Any Thoughts ?
Cheers
Chris
A couple of years ago we reviewed our Severity Occurence Detection Ranking.
A broad difference exsisted in using scales of 1 to 10.
As a improvement the scales were refined to 1 to 5.
Thus I have a Max RPN of 125.
This has worked fine and provides good repeatability of classification for different users and team members.
However a recent customer auditor discussed my ranking and has documented a requirement to review the ranking. His point is that the range does not allow the correct priority since a higher range would seperate items of greater importance.
However I demonstrated that because I took all RPN of the same value with the same action priority and had no RPN's above 12 on any process in our plant my process was working effectively. This could also be justified by the quality of product supplied to this customer meeting target requirements.
Yet I fear that this auditor wants me to install a 1 to 10 ranking and if this is not carried out on the corrective action report he will not close this issue and improve my supplier ranking.
Any Thoughts ?
Cheers
Chris