Khun Teerapon,
We have a few question on your report
- At the current process, do you allow for the rework pilot diameter ? what the current control? please share the document.
- If allow rework, and you mentioned this is a first set up. We assumed, the first set up part should be a lot of inspection. Why the inspection was missed and can not detect on this defect?
- The Pilot diameter is PQC requirement from GM, if you change from 101.025 to 101.030 mm. what the process capability will be? What the process capability current set up 101.025 mm.?
- The root cause for occur came from rework, why the corrective action didn’t mention how to prevent the rework process can make this defect again? Or you will do not allow to rework