PPAP and Submission
PPAP is the contract that proves a supplier can build a production part to spec, every time. It bundles the design record, process flow, PFMEA, control plan, MSA, capability study, dimensional results, and customer specific paperwork into one submission that an OEM signs off before approving production. Quality engineers live in PPAP, but most teams still run it on a spreadsheet, a shared drive, and a prayer. The guides in this topic walk through the 18 elements, the submission levels, the gotchas that hold up signoff, and what changes when a platform owns the document trail instead of a human.
9 articles in this topic
Featured article
What is PPAP? A Complete Guide for Quality Engineers
Everything quality engineers need to know about PPAP, definition, the 18 elements, submission levels, common mistakes, and how AI is changing the process.
Read the full guidePPAP Fundamentals
What PPAP is, what it requires, and how the elements fit together.
Part Submission Warrant: How Do You Fill Out a PSW That Matches What Is Actually in the Package?
Most PPAP rejections on the warrant are not manufacturing problems. A box is checked for an element that is not in the folder, or the revision on the cover does not match the design record behind it. Here is how QualityEngineer.ai generates the Part Submission Warrant from the package itself, so PPAP Element 18 cannot claim something the submission does not contain.
PPAP Submission Levels 1 Through 5: What Each Level Requires and How Your Customer Decides Which One You Submit
A practitioner walkthrough of the five PPAP submission levels in the AIAG PPAP 4th Edition. What Level 1 through Level 5 each require you to submit versus retain, why Level 3 is the default, how the customer designates the level, what a significant production run has to look like, and how to read the Submission and Retention Requirements table so your package matches what the SQE actually asked for.
AS9145 Aerospace APQP and PPAP: A Field Map for Suppliers Coming From AIAG
An aerospace customer just flowed down AS9145 instead of AIAG APQP and PPAP. Here is a practical mapping of the five phases, the 11 aerospace PPAP elements versus the automotive 18, where AS9145 diverges from what you already do, and the traps that get a first submission kicked back.
PPAP Element 11 Initial Process Studies: What Ppk Value Passes and Why Reviewers Reject the Number Before They Read It
Element 11 is where the statistical work of a PPAP package either holds up or collapses. A reviewer's-seat walkthrough of Initial Process Studies under AIAG PPAP 4th Edition: why initial studies report Ppk and not Cpk, the three-tier acceptance criteria at 1.33 and 1.67, the two prerequisites a reviewer verifies before trusting your index, the significant production run sample rules, the non-normal and one-sided characteristic trap that voids a clean-looking number, five kickback patterns, and a pre-submission QA pass you can run in fifteen minutes.
PPAP 18 Elements Checklist: What Each Element Has to Show to Pass a Customer Submission Review
A practitioner checklist for all 18 PPAP elements under the AIAG PPAP 4th Edition. What each element actually has to contain, the reviewer mindset on the customer side, and the specific defects that get a Level 3 package kicked back to Interim.
FAI vs PPAP: When Aerospace Suppliers Need First Article Inspection, PPAP, or Both
FAI under AS9102 and PPAP under AIAG cover similar ground for different supply chains. A practical guide to where they overlap, where they don't, which customers ask for which, and how dual-cert aerospace shops keep one source of truth feeding both submissions.
PPAP Software
Tooling decisions, platform comparisons, and what to look for when you replace spreadsheets.
Should You Build Your Quality Stack with an AI Coding Agent?
An AI coding agent can produce working PPAP tooling, auto ballooning, and cert generation in a couple of weeks now. That part is real. The question that decides whether it was a good idea is what the same tool costs you in year two and year three, not week one.
PPAP Software: How Purpose-Built Tools Reduce Submission Rework
PPAP submissions get kicked back for the same handful of reasons: missing elements, inconsistent revisions, mismatched characteristics. PPAP software solves the rework problem by enforcing structure across the 18 elements before the package leaves your hands.
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