What are the AIAG defined PPAP Levels?



Level 1: Warrant only(possibly with Appearance Approval Report(AAR))

Level 2: Warrant with samples, drawings, inspection results, lab and functional results, AAR

Level 3: All the above plus: process capability results, capability study, process control plan, gage study, FMEA, PFD--all submitted to customer

Level 4: per level 3, without parts

Level 5: At supplier location: same as level three

See below:

The 18 PPAP Elements
  1. Design Documentation
    • Design documentation shall include both a copy of the customer and the supplier’s drawings. The documentation should also include a copy of the purchase order. In some cases the supplier is required to supply documentation of material composition.
      • The purchase order is used to confirm that the correct part is being ordered and that it is at the correct revision level.
      • The design engineer is responsible for verifying that the two drawings match and all critical or key characteristics have been identified.
      • Material composition information is required to supply evidence that the material used manufacture the parts meets the customer’s specific requirements.
  2. Engineering Change Documentation
    • If the PPAP is being required due to a request for a change to a part or product, the documentation requesting and approving the change must be included in the PPAP package. This documentation usually consists of a copy of the Engineering Change Notice (ECN), which must be approved by the customer engineering department.
  3. Customer Engineering Approval
    • When required as part of the PPAP, the supplier must provide evidence of approval by the customer engineering department.
      • If required, pre-PPAP samples are ordered by the customer for onsite testing. The samples must be production intent and ship with a waiver so that testing can be done. When testing is complete, the test engineers will provide an approval form for inclusion in the PPAP submission.
      • Note: A copy of a “Temporary Deviation” is normally required to submit parts to the customer prior to a PPAP approval.
  4. Design Failure Mode and Effects Analysis
    • Design Failure Mode and Effects Analysis (DFMEA) is a cross-functional activity that examines design risk by exploring the possible failure modes and their effects on the product or customer and their probability to occur. These failure modes can include:
      • Product malfunctions
      • Reduced performance or product life
      • Safety and Regulatory issues
    • The DFMEA is a living document that should be reviewed and updated throughout the product life cycle.
  5. Process Flow Diagram
    • The Process Flow Diagram outlines the entire process for assembling the component or final assembly in a graphical manner. The process flow includes incoming material, assembly, test, rework and shipping.
  6. Process Failure Mode and Effects Analysis
    • Process Failure Mode and Effects Analysis (PFMEA) reviews all of the steps in the production process to identify any potential process quality risk and then document the applied controls. The PFMEA is also a living document and should be updated even after the product is in normal production.
  7. Control Plan
    • The Control Plan is an output from the PFMEA. The Control Plan lists all product Special Characteristics and inspection methods required to deliver products that continually meet the customer quality requirements.
  8. Measurement System Analysis Studies
    • Measurement System Analysis (MSA) studies will include Gage Repeatability & Reproducibility (GR&R) studies on measurement equipment used during assembly or quality control checks. Calibration records for all gages and measurement equipment must be included.
  9. Dimensional Results
    • Dimensional layout of sample parts is required to validate the product meets the print specifications. The samples should be randomly selected from a significant production run usually at least 30 pieces. Each dimension on the drawing is measured on the final assembly to make sure that it falls within specification. The results are recorded in a spreadsheet and included within the PPAP submission.
  10. Records of Material / Performance Tests
    • This element should contain a copy of the Design Verification Plan and Report (DVP&R). The DVP&R is a summary of every validation test performed on the part. It should list each and every test performed, a description of how the test was performed, and the results of each test.
    • This section may also include copies of all the certification documents for all materials (steel, plastics, etc.) listed on the prints. The material certification shall show compliance to the specific call on the print.
  11. Initial Process Studies
    • Initial process studies will be done on all the production processes and will include Statistical Process Control (SPC) charts on the critical characteristics of the product. These studies demonstrate that the critical processes are stable, demonstrate normal variation and are running near the intended nominal value.
  12. Qualified Laboratory Documentation
    • Qualified laboratory documentation consists of the industry certifications for any lab that was involved in completing validation testing. This could be for an in-house test lab or any offsite contracted test facilities that were used for validation or material certification testing.
  13. Appearance Approval Report
    • The Appearance Approval Inspection (AAI) is applicable for components affecting appearance only. This report verifies that the customer has inspected the final product and it meets all the required appearance specifications for the design. The appearance requirements could include information regarding the color, textures, etc.
  14. Sample Production Parts
    • Sample production parts are sent to the customer for approval and are typically stored at either the customer or supplier’s site after the product development is complete. A picture of the production parts is usually included in the PPAP documentation along with documentation regarding the location that the parts are being stored.
  15. Master Sample
    • A master sample is a final sample of the product that is inspected and signed off by the customer. The master sample part is used to train operators and serves as a benchmark for comparison to standard production parts if any part quality questions arise.
  16. Checking Aids
    • This is a detailed list of checking aids used by production. It should include all tools used to inspect, test or measure parts during the assembly process. The list should describe the tool and have the calibration schedule for the tool. Checking aids may include check fixtures, contour, variable and attribute gages, models or templates.
    • MSA may be required for all checking aids based on customer requirements.
  17. Customer Specific Requirements
    • This element of the submission package is where any special customer requirements are contained. For bulk materials, the customer specific requirements shall be recorded on the “Bulk Material Requirements Checklist”.
  18. Part Submission Warrant
    • The Part Submission Warrant (PSW) form is a summary of the entire PPAP submission. A PSW is required for each of part number unless otherwise stated by the customer. The PSW includes:
      • The reason for submission (design change, annual re-validation, etc.)
      • The level of documents submitted to the customer
      • Declaration of part conformity to customer requirements
      • A section provided for any required explanation or comments
      • Supplier authorized person signature along with contact information
      • An area for the customer to indicate disposition of the PPAP
Elsmar Forum Sponsor

Jim Biz

Thakns Chris - this really helps to end the confusion here anyway... I'll know from now on to change my first guess to Level 3 capabilities .

[This message has been edited by Jim Biz (edited 15 June 2000).]

Jim Biz


Help - we are only ISO -9002 certified - and do (currently) a customer acceptable version of a PPAP report write up... Now it seems for a new customer we are being requested to determine which AIAG method/level we are capable of supplying (my first guess would be 1 but but I have not seen a difinitave break down of what AIAG defines as specific for level 1,2,3..

Casn anyone fill me in?
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