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1、GENERAL MOTORS SUPPLIER DEVELOPMENT GENERAL PROCEDURESEarly Production ContainmentGP-12NOTE:GP-12 Early Production Containment (GM-1920) has been incorporated into the General Motors Specific Section of the Production Pan Approval Process procedure. The February, 1995 Revision to PPAP includes this
2、change.1.0SCOPE. This procedure applies to all suppliers required to use the Production Part Approval Process(PPAP). It is to be used for all pre-production and production requirements that require the Production PartApproval Process. GP-12 should nor be used for carry over quality concerns: they sh
3、ould be addressed usingthe Controlled Shipping Procedure.2.0DEFINITION AND PURPOSE The purpose of OP- 12 is to document the suppliers efforts to gain control of its processes during start-up and acceleration so that any quality issues that may arise are quicklyidentified and corrected at the supplie
4、rs location and not at the GM customers manufacturing location. GP-12Early Production Containment requires a Pre-Launch Control Plan a significant enhancement to the suppliers production control plan which will raise the confidence level to ensure that all products shipped initially willmeet GMs exp
5、ectations. 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 wellas potential areas of concern identified during the Production Part Approval Process. GP-12 Earl
6、y ProductionContainment serves to proceduralize the Pre-Launch Control Plan referred to in section 3.7 of the Chrysler,Ford, GM Advanced Product Quality Planning and Control Plan Reference Manual.Note:This procedure does not provide authorization to ship nor is it a shipping schedule3.0 SUPPLIER RES
7、PONSIBILITY The Supplier must do the following:A. Establish a containment process that contains the following elements:I.Identification of the person responsible for the containment process.2. Development of a Pre-Launch Control Plan consisting of additional controls. inspection audits and testing t
8、o identify non-conformances during the production process. Depending on the dominant factor if the production process (set-up, machinery. fixture. tooling. operator. material/components, preventative maintenance, climate) additional controls could include:Increased frequency/sample size of receiving
9、. process. and or shipping inspectionsMandated sub-supplier containment and or sub-supplier support/auditsAddition of inspection/control itemsIncreased verification of label accuracyEnhancement of process controls. such as error proofingError proofing validation through introduction of known defects
10、Increased involvement and visibility of top management3.Prompt implementation of containment/correction when non-conformances are discovered4.Identification of the measurement equipment and data collection devices/activities to be used where applicableB.Document the Pre-Launch Control Plan, includin
11、g functional testing and error proofing, using theControl Plan format referenced in the Advanced Product Quality Planning and Control Plan Reference Manual.The development and documentation of the Pre-Launch Control Plan are expected to occur during theAdvanced Product Quality Planning process. The
12、Pre-Launch Control Plan is not a substitute for theProduction Control Plan but is over and above the Production Control Plan and is used to validate it.C. Utilize the Early Production Containment Plan for all pre-production requirements (e.g. pilot, lead unit build)and for the production ship quanti
13、ty or duration specified by the procuring division or until the Production Control Plan is validated, whichever occurs later. Typically, the specified production quantity or duration is intended to reflect the customers acceleration plan to full production rate. If not specified by the procuring div
14、ision, the production ship quantity is a minimum of 1200 pieces for each GM customer plant, in addition to any pre-production quantities required.PRINTED IN U.S.A.General Motors Corp. Published by Worldwide PurchasingFebruary 1995GM-1920 page 1GENERAL MOTORS SUPPLIER DEVELOPMENT GENERAL PROCEDURES E
15、ARLY PRODUCTION CONTAINMENTGP-12D To indicate compliance with the OP-12 requirements, attach to each shipping label a green dot signed by adesignated senior management representative, typically the highest level manager at the production facility.(The green dot should have a diameter of 1.25 to 2 in
16、ches.)4.0EXIT CRITERIA Supplier will be eligible to exit Early Production Containment on its own accord after meeting the criterion listed below. If the supplier is unable to meet the exit criteria or the suppliers GP-I 2 plan continuesto identify non-conformances the supplier is expected to continu
17、e the necessary containment measures to insulate the Customer Plant up to the time when the quality concerns have been resolved to the satisfaction of both the Supplier and the Customer and the Suppliers Production Control Plan is validated.A. Ship the number of pieces or for the duration specified
18、by the procuring division with no discrepancies or customer plantPR/Rs and supplier can self exit from the Early Production Containment ProcessB.If supplier does not meet self exit criteria then to exit GP-12 all PR/Rs must be closed by the Customer PlantC.In the event the self exit criteria has bee
19、n met but the GP-12 plan continues to identify non-conformances, the OP-I 2 plan must be kept in place until process controls and capabilities have proven effective and the Production Control Plan is validated_ PRINTED IN USA _General Motors CorpPublished by Worldwide Purchasing Page 2February 1995GM-1920
