What is PPAP?

May 17, 2020

What is Product Part Approval Process (PPAP)?

Approval of your APQP process will come through the submission of the Production Part Approval Process (PPAP). The PPAP is a standardized process created to provide evidence to the customer that there is a reliable and repeatable process in place.

Currently, the PPAP process is governed by the PPAP Manual published by AIAG. The manual contains a checklist which includes all elements and requirements for a complete PPAP. There are 18 possible elements that must be checked but depending on your customer specific requirements these may vary on what is called the level of submission (level 1 to 5). It is important that regardless the level requested by the customer, every applicable element will lead to achieving a stable and robust process.

Eligible Elements for PPAP:

  1. Design records
  2. Engineering Change Documents
  3. Customer Engineering Approval
  4. Design Failure Mode and Effects Analysis (DFMEA)
  5. Process Flow Diagrams
  6. Process Failure Mode and Effects Analysis (PFMEA)
  7. Control Plan
  8. Measurement System Analysis (MSA)
  9. Dimensional Results
  10. Material Performance Test Results
  11. Initial Process Studies
  12. Qualified Laboratory Documentation
  13. Appearance Approval Report (AAR)
  14. Sample Product
  15. Master Sample
  16. Checking Aids
  17. Records of Compliance with Customer-Specific Requirements
  18. Part Submission Warrant (PSW)


To submit a PPAP it is important to define not only a work plan, but also a strategy. It is a direct communication between the customer and supplier n between the customer and supplier that confirms how each PPAP element is satisfied. The PPAP is also required anytime a new part or change to existing parts or process is being planned. Not every PPAP will be the same and therefore must take place before the requirement is accepted.

For more information or to learn more on PPAP, browse our related trainings. Plexus International designs, develops, and delivers internationally accredited, industry-recognized training programs for the global manufacturing supply chain with one critical goal: real performance improvement.

Source:
AIAG Production Part Approval Process (PPAP) Manual [PPAP-4]