But if I'm a direct supplier to a Big 3 customer (and therefore do not have to subscribe to their CSR's) then it shouldn't be normative to me, right?
I think you mean to say you are a tier 2? If so, your point might be correct, but most tier 1's actually require their suppliers to do them as well.
The actual nonconformance was over bias, linearity and stability studies (we've never used them, just Gage R+R), and I'm not going to complain about the nonconformance because I'm sure that the studies are useful and we probably should be doing them. Now it looks like I get to make another trip up to AIAG for some MSA training. Southfield, joy.
(And I imagine that the MSA book was normative under QS-3, so we should have been doing them and if that's the case it's a wonder we never got hit on it during one of the twice a year audits from 1998-2006.)
Yes, these were required for years under QS. However, the blue books weren't normative, the studies requirement came out of the QS standard and interpretations.
Yes they are useful, and if you use programs like GageTrak and GagePak, the studies can be executed automatically from the same data entered for Gage R&R.
Don't think you need to do training for these, if you already know how to do Gage R&R. Check your software.