J
3rd edition FMEA
We work with GM, Ford and Chrysler and Chrysler has asked about the third edition changes but GM has demanded that we incorporate the changes in existing FMEA's and even had us attend a workshop for FMEA writing which spent some time covering the 3rd edition changes.
I see that most people are aware of the changes that affect Current Process Controls-Detection vs. Prevention but nothing has been mentioned for what I think is the biggest change...the "Suggested" (I use suggested loosely because it's been mandated we follow it) Evaluation Criteria for Detection.
It has gone from a very liberal, loose interpretation in 2nd edition to actually specifying inspection types, criteria for controls and suggested range of Detection Modes (see pg 53).
People that thought their 200% visual inspection was foolproof can now give it no better than a 7 on the detection scale. Control achieved with SPC can get no better than a 6.
It's basically forced us to go back and re-evaluate how we rate our detection levels and in some cases has caused us to streamline the ratings between FMEA's where we unknowingly gave one detection level a 5 on one FMEA and the same item on another FMEA a 2.
In fact we found that very few of our detection levels can actually get a 1 because the new criteria dictates that the process/product design must be error proofed.
It certainly presents lots of opportunities for improvement, but realistically it will also raise the RPN's across the board which was every managers nightmare. It wasn't uncommon in the class to see several RPN's in the 400 range.
Has anyone else had a customer hold them to the new criteria?
What about customers dictating a "bogey target" for RPN's?
What's really scary is our QS Auditor can in here in Sept and wasn't even aware of the third edition changes.
Food for thought
John
We work with GM, Ford and Chrysler and Chrysler has asked about the third edition changes but GM has demanded that we incorporate the changes in existing FMEA's and even had us attend a workshop for FMEA writing which spent some time covering the 3rd edition changes.
I see that most people are aware of the changes that affect Current Process Controls-Detection vs. Prevention but nothing has been mentioned for what I think is the biggest change...the "Suggested" (I use suggested loosely because it's been mandated we follow it) Evaluation Criteria for Detection.
It has gone from a very liberal, loose interpretation in 2nd edition to actually specifying inspection types, criteria for controls and suggested range of Detection Modes (see pg 53).
People that thought their 200% visual inspection was foolproof can now give it no better than a 7 on the detection scale. Control achieved with SPC can get no better than a 6.
It's basically forced us to go back and re-evaluate how we rate our detection levels and in some cases has caused us to streamline the ratings between FMEA's where we unknowingly gave one detection level a 5 on one FMEA and the same item on another FMEA a 2.
In fact we found that very few of our detection levels can actually get a 1 because the new criteria dictates that the process/product design must be error proofed.
It certainly presents lots of opportunities for improvement, but realistically it will also raise the RPN's across the board which was every managers nightmare. It wasn't uncommon in the class to see several RPN's in the 400 range.
Has anyone else had a customer hold them to the new criteria?
What about customers dictating a "bogey target" for RPN's?
What's really scary is our QS Auditor can in here in Sept and wasn't even aware of the third edition changes.
Food for thought
John
