1.0 SCOPE: GP-12 is to be used for all pre-production, production, service and accessory part requirements that;
· Require Production Part Approval Process (PPAP)
· Represent significant risk to the customer facility as mandated by GM
2.0 DEFINITION AND PURPOSE:
GP-12 Early Production Containment requires a Pre-Launch Control Plan that is a significant enhancement to the supplier's production control plan and raises the confidence level to ensure that all products shipped will meet GM’s requirements. The pre-launch control plan will also serve to validate the production control plan. The Pre-Launch Control Plan should take into consideration all known critical conditions of the part as well as potential areas of concern identified during PPAP.
The purpose of GP-12 is to:
· Validate the supplier’s production control plan
· Protect our assembly and manufacturing centers and service part warehouses from quality non-conformances during critical periods
· Document the supplier's efforts to verify control of its processes during start-up, acceleration, after revisions to the manufacturing process, or when manufacturing runs are separated by 3 months or more
· Ensure that any quality issues that may arise are quickly identified, contained, and corrected at the supplier's location
· Increase involvement and visibility of supplier’s top management
Amancio,
ReplyDeleteThe challenge of GP-12 is to try and contain unknown problems:
"Ensure that any quality issues that may arise are quickly identified, contained, and corrected at the supplier's location"
I find that usually the focus is on confirming the quality of known risky items. But in those cases for weeks on end the inspection turns up zero defects.
At the same time, some problem not considered risky will slip through.
What I try and do is encourage the GP-12 process to be more general and suspicious. Of course, it is hard to catch everything, but the customer does, so why can't GP-12?
plantrat@gmail.com