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NTF / FFA training

Discussion in 'IATF 16949:2016 - Automotive Quality Systems' started by russell nugent, Oct 11, 2022.

  1. russell nugent

    russell nugent Active Member

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    Recently we have been requested to include NTF ( no trouble found or FFA field failure analysis ) into our NPI stage for component introduction . Looking for advice on where this would fit into NPI and possible training courses . NTF preferably.
     
    russell nugent, Oct 11, 2022
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  2. Andy Nichols

    Andy Nichols Moderator Staff Member

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    Russell, you're unlikely to find training on such an issue, IMHO. Without knowing your actual NPI process, it's difficult to know, but if you take a look at the APQP model it can help (I suspect that your NPI follows APQP to some extent). Obviously the earlier phases are a good time to be looking at NTF issues and also in your FMEA.
     
    Last edited: Oct 11, 2022
    Andy Nichols, Oct 11, 2022
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  3. Miner

    Miner Moderator Staff Member

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    The most obvious areas would be to use this information as input to your Design and Process FMEAs, which would then provide input to your design verification/validation test plans and Control Plans.

    BTW, I don't know how complex your product may be, but my experience with NPFs of relatively complex products was that there really was a problem, but we did not initially find it because of the following reasons:
    • The problem was intermittent and had to be tested over long periods of time in order to identify it
    • The problem only appeared under specific conditions that were seen at the customers location and must be duplicated in order to see it
    • The problem self corrected under the shock and vibration of transportation back to us (e.g. an electrical short breaks open under shock)
    One product line that I supported had an NPF rate of 40% until I changed the testing protocols. Then it dropped to 0%.
     
    Last edited: Oct 11, 2022
    Miner, Oct 11, 2022
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    Bev D and Andy Nichols like this.