Definition
Production Part Approval Process(PPAP)
PPAP is a structured process used in automotive manufacturing to prove that a supplier can consistently produce parts that meet customer requirements. It requires documented evidence, samples, and approvals before production launch.
What is Production Part Approval Process?
PPAP (Production Part Approval Process) ensures that suppliers understand customer requirements and can consistently produce conforming parts under production conditions. It is a core component of APQP and is required by most OEMs and Tier-1 customers.
PPAP includes a standardized set of documents such as design records, process flow, PFMEA, control plan, measurement results, and part submission warrant (PSW).
Key Points
- PPAP provides evidence that the production process is stable and capable
- Submission levels define how much documentation is required
- PPAP is tied to APQP and customer-specific requirements
- Consistent PPAP reduces launch risk and late-stage quality issues
- A clear checklist prevents common documentation gaps
Implementation Guide
Steps:
- 1Confirm customer-specific PPAP submission level and requirements
- 2Complete APQP deliverables (process flow, PFMEA, Control Plan)
- 3Collect dimensional results and capability studies where required
- 4Compile supporting evidence (material certs, MSA, performance tests)
- 5Prepare and review the Part Submission Warrant (PSW)
- 6Submit the PPAP package and sample parts for approval
- 7Address feedback and maintain approved status for ongoing production
Best Practices:
- Use a standardized PPAP checklist for internal review
- Align supplier pre-checks with the same acceptance criteria
- Validate process capability for critical characteristics
- Keep documentation consistent across design and production changes
- Track PPAP issues by category to improve future submissions
Common Mistakes to Avoid
- • Submitting incomplete documentation packages
- • Misalignment between PFMEA, Control Plan, and actual process
- • Missing or outdated customer-specific requirements
- • Insufficient capability evidence for critical characteristics
- • Late change notices not reflected in the submission
Qualiteh's Approach to Production Part Approval Process
Qualiteh streamlines PPAP using structured review checklists, supplier pre-verification, and issue tracking. We help teams reduce resubmissions, improve documentation quality, and meet launch deadlines with confidence.
Related Terms
Frequently Asked Questions
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