A clause-by-clause guide to AS9102 Rev C and the FAI process aerospace suppliers can’t afford to get wrong
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The Part That Passed Inspection — And Still Got Rejected
Understanding First Article Inspection requirements under AS9102 Rev C is what separates a smooth AS9100 audit from a stalled one — and a part can measure perfectly on the CMM and still get bounced back to the supplier. Not because the dimensions were wrong. Because the paperwork proving those dimensions was incomplete, unsigned, or missing a required characteristic.
That’s the trap most new AS9100 suppliers fall into with First Article Inspection, or FAI for short. They treat it as a formality — something to knock out after the part is built. In reality, AS9102 Rev C is a documentation standard with specific, auditable requirements, and a customer or auditor can reject an otherwise flawless part on FAIR completeness alone.
If you’re preparing for your first AS9100 certification, building your first FAIR package, or trying to figure out why your last one bounced, this guide breaks down exactly what AS9102 Rev C requires — and where suppliers lose the most time.
From the Floor: I’ve sat across the table from an auditor reviewing first-piece documentation on a new fabrication run, watching a supplier get flagged not because the part was out of tolerance, but because the characteristic accountability record didn’t trace back to the drawing revision in use. That’s the kind of finding that stalls a contract review meeting for weeks. The part was fine. The paper trail wasn’t — and in an audit, the paper trail is the part.
👉 Before you submit your next FAIR, run it against a clause-by-clause gap check first. Grab the free AS9100 Rev D Gap Assessment Checklist — a 74-item, section-by-section review built for aerospace suppliers who need to know exactly where their QMS stands before a registrar does.
In This Guide
- What First Article Inspection requirements actually cover, and why AS9100 requires them
- The five triggers that require a new or partial FAI
- AS9102 Rev C’s three forms, explained field by field
- Full FAI vs. partial (delta) FAI — and how to tell which one you need
- The most common reasons FAIRs get rejected
- How FAI connects to AS9100 Clause 8.5.1.3
- A quick audit checklist you can run before your next submission
- Where to buy AS9102 Rev C and how to prepare your team
Table of Contents
👉 Start Here: Top Resources
- AS9100 Rev D Gap Assessment Checklist — free 74-item checklist to confirm your QMS (including production process verification) is audit-ready before your registrar shows up.
- 9001Simplified — pre-built documentation templates that give your FAI and nonconformance records a structured home instead of scattered spreadsheets.
- AS9102 Rev C — ANSI Webstore — the current edition of the standard governing FAI reporting.
- BSI Group AS9100 Training — structured AS9100 training if your quality team needs a working understanding of Clause 8.5.1.3 before your next internal audit.
What Is a First Article Inspection?
Quick answer: First Article Inspection (FAI) is a documented verification that a representative part from a new or changed production process meets all engineering, material, and specification requirements. Aerospace suppliers typically document FAI using AS9102 Rev C forms.
These First Article Inspection requirements apply the moment your AS9100 certificate covers a new part number — they’re not an optional add-on you can defer until an audit forces the issue.
It’s not a sampling plan. It’s not a spot check. AS9100 Rev D, Clause 8.5.1.3 (“Production Process Verification”), requires a representative item from the first production run — or from a process that has changed enough to invalidate a prior FAI — to be fully inspected, verified, and documented.
The distinction matters because FAI isn’t optional guidance layered on top of AS9100. It’s a clause requirement. If your AS9100 certificate is active, your ANAB-accredited registrar expects to see FAI records, and expects them to follow the format your customers specify — which, for the overwhelming majority of aerospace primes, means AS9102 Rev C.
If you are new to aerospace supply chains and still mapping how AS9100 differs from the ISO 9001 system you already run, our AS9100 vs. ISO 9001 breakdown covers the additional aerospace-specific clauses, FAI included.
AS9102 Rev C: The Standard Behind the Requirement
AS9102, maintained by SAE International’s Aerospace Standards Committee, defines the format and content of the First Article Inspection Report (FAIR). The current edition — Rev C, released in June 2023 — replaced Rev B and remains the version most primes and Tier 1 customers require today.
Rev C tightened accountability. Every bill-of-materials part tied to the assembly — detail parts, sub-assemblies, and commercial off-the-shelf (COTS) items alike — now has to be explicitly listed. Special process suppliers (heat treat, NDT, plating) are explicitly in scope: they can satisfy the requirement by producing their own FAIR or by documenting characteristics and results on a detailed certificate of conformance. The signature structure also changed — a single Form 1 signature now locks all three forms, instead of requiring separate sign-off on each.
Most customers will still accept Rev B templates on legacy programs through 2026, but new contracts increasingly specify Rev C by default. There’s no upside to staying on the old forms.
AS9102 Rev C — ANSI Webstore is the authoritative source for the current text — worth the purchase before you build or revise your FAI templates internally, since secondhand summaries (including this one) don’t replace the primary document during an audit.
When FAI Is Required — The Five Triggers
FAI isn’t a one-time event tied to a single part number. AS9102 defines five specific triggers, and any one of them requires a new FAI — or at minimum, a partial one:
- First production run of a new part. Always required, no exceptions.
- A design change. Any engineering change order or drawing revision that affects fit, form, or function.
- A change in manufacturing source. New supplier, new plant, or a significant process change at an existing supplier.
- A change in process or material. New heat treat cycle, new alloy lot source, new raw material vendor.
- A lapse in production exceeding two years. Even if nothing else changed, the gap itself triggers a re-FAI.
If you are already certified to AS9100 and building your first aerospace part number → treat trigger #1 as non-negotiable. Skipping it is one of the fastest ways to generate a serious audit finding during a surveillance audit or customer assessment. If you’re still mapping out your certification schedule, our AS9100 Implementation Timeline guide shows where FAI readiness fits into the overall process.
If you’re mid-contract and just received an ECO → check trigger #2 before you release the revised drawing to the floor. A full FAI isn’t always required here — see the partial FAI section below.
The Three FAI Forms Explained
AS9102 requires three forms, and each one covers a different layer of accountability.
| Form | Purpose | Key Content |
|---|---|---|
| Form 1 | Part Number Accountability | Part number, part name, serial number, FAIR number, drawing revision, full vs. partial FAI designation, single locking signature |
| Form 2 | Product Accountability | Materials, special processes, functional test requirements, and the specifications each one is verified against |
| Form 3 | Characteristic Accountability | Every ballooned characteristic from the drawing, the requirement, the actual measured result, and the verifying method |
Form 1 is the cover sheet — it identifies the part and locks the package once signed. Form 2 tracks every material, special process, and functional test called out on the drawing, cross-referenced to its governing specification. Form 3 is where the detail lives: every dimension, tolerance, and note on the drawing gets a balloon number, and that number has to trace directly to a measured, documented result on Form 3.
Most common finding: auditors and customer quality reps most often reject FAIRs not for measurement errors, but for characteristics on the drawing that never made it onto Form 3 at all — a missed note, a General Datum requirement, or a material callout in the title block that nobody ballooned.
Full FAI vs. Partial (Delta) FAI
Not every trigger requires rebuilding the entire FAIR from scratch. AS9102 Rev C distinguishes between:
- Full FAI — every characteristic on every form is inspected and documented. Required for the first production run of a new part, or when the scope of a change is broad enough to affect the majority of the part’s characteristics.
- Partial (delta) FAI — only the characteristics or processes affected by the specific change are re-inspected, with a clear reference back to the baseline FAIR that covers everything else.
Example: Changing a hole diameter from .250″ to .312″ typically justifies a partial FAI focused on the affected characteristics. Changing the manufacturing route, material specification, and drawing revision at the same time typically pushes it into full-FAI territory instead.
If you’re unsure which one your ECO requires → don’t guess. Map the change directly to the specific characteristics it touches, and document that mapping as part of your FAI plan. An auditor will ask you to justify a partial FAI determination, and “we assumed it was minor” is not an acceptable answer.
That re-accomplishment logic needs to live in a controlled, rev-managed document that defines in advance what counts as a full trigger versus a delta trigger for your product lines. Waiting until the ECO lands to figure this out is how full FAIs get triggered by mistake — burning inspection hours a documented plan would have avoided.
Common First Article Inspection Mistakes
The failure patterns repeat across shops of every size:
- Incomplete characteristic capture. Notes, general tolerances, and material callouts buried in the drawing’s title block get missed during ballooning.
- Missing special process evidence. A part goes out for heat treat or NDT, and the FAIR references the process but doesn’t include the supporting cure chart, pyrometry data, or inspection record.
- No documented full-vs-partial rationale. A delta FAI gets submitted with no record of why it was scoped that way.
- Signature and revision mismatches. The drawing revision on Form 1 doesn’t match what was actually used to inspect the part — often because the drawing was revised mid-production and nobody updated the FAIR.
- Treating FAI as a one-time event. No plan exists for what happens after a two-year production gap, so the re-FAI requirement gets missed entirely.
If your last FAIR bounced and you’re not sure why → work backward from Form 3 first. That’s where the majority of rejected packages have their root cause, not Form 1 or Form 2.
👉 Most shops don’t fail FAI review because they misunderstand the standard — they fail because a characteristic never made it onto the ballooned drawing in the first place. Run the AS9100 Gap Assessment Checklist before your next submission and catch it before your customer does.
How FAI Connects to AS9100 Clause 8.5.1.3
FAI isn’t a standalone requirement — it’s the mechanism AS9100 uses to satisfy Clause 8.5.1.3, Production Process Verification. The clause requires organizations to verify a process is capable of consistently producing conforming product before that process runs for volume production. AS9102 is how you prove that verification happened, in a format customers can audit against.
This is also where the objection comes up most: does a small shop with only a handful of aerospace part numbers really need full AS9102 compliance, or is this a Tier 1 problem? The clause doesn’t scale by company size. If your QMS is certified to AS9100 and you’re producing a part for the first time, Clause 8.5.1.3 applies whether you’re a 15-person job shop or a 500-employee Tier 1 supplier. What scales is the complexity of the part — not whether the requirement exists.
For the accreditation and certification-body side of this, IAQG maintains the governing framework for AS9100 quality management, and the IAQG OASIS Database is where certified suppliers’ AS9100 status gets verified by customers and registrars.
Quick FAI Audit Checklist
Run this before you submit your next FAIR:
- ✅ Every note, tolerance, and callout on the drawing — including the title block — has been ballooned
- ✅ Form 1’s drawing revision matches the revision actually used for inspection
- ✅ Special process evidence (cure charts, pyrometry, NDT records) is attached, not just referenced
- ✅ Full vs. partial FAI determination is documented with a rationale, not assumed
- ✅ Sub-tier or COTS characteristics are accounted for per the BOM, not just the top-level assembly
- ✅ Single Form 1 signature is present and dated correctly under Rev C rules
- ✅ Two-year production lapse tracking exists somewhere in your quality system — not just in someone’s memory
⚠️ If you can’t check every box above with confidence, that’s a gap assessment conversation, not a “we’ll catch it next time” conversation.
FAQ
Is First Article Inspection required under AS9100, or is AS9102 just a recommendation?
FAI itself is a clause requirement under AS9100 Rev D, Clause 8.5.1.3. AS9102 is the SAE standard that defines the documentation format for that requirement — it’s not certified separately, but nearly every aerospace customer specifies it as the expected format for FAIR submission.
What’s the difference between AS9102 Rev B and Rev C?
Rev C, released in 2023, tightened bill-of-materials accountability (requiring every BOM item — detail parts, sub-assemblies, and COTS — to be listed), brought special process suppliers explicitly into scope, and simplified the signature structure so a single Form 1 signature locks all three forms instead of requiring separate signatures on each.
Do I need a full FAI every time a drawing changes?
Not necessarily. If the change affects only specific characteristics, a partial (delta) FAI that documents just those characteristics — with a clear reference back to the original FAIR — is acceptable, provided the full-vs-partial determination is documented and justifiable.
How long does a First Article Inspection take?
Completed manually, a single FAIR can take a full day per part, depending on characteristic count. Ballooning software that links balloon numbers directly to Form 3 has cut that time down substantially for shops with high part-number volume, though the underlying inspection and documentation work doesn’t disappear — it just moves faster.
Does a lapse in production really require a brand-new FAI even if nothing changed?
Yes. A production gap exceeding two years triggers a re-FAI under AS9102, regardless of whether the drawing, process, or supplier changed. The rationale is that tooling, gauges, and personnel can all drift over a two-year gap even without a documented change.
Who is responsible for FAI on parts that go out for special processing?
The special process supplier (heat treat, plating, NDT) is explicitly in scope under Rev C. They can satisfy the requirement either by producing their own FAIR for their portion of the work, or by documenting the relevant characteristics and results on a detailed certificate of conformance that the prime contractor’s FAIR references.
Can a small job shop with only one or two aerospace part numbers skip formal FAI documentation?
No. Clause 8.5.1.3 applies to any organization certified to AS9100 producing a new or changed part — company size and part-number volume don’t change the requirement, only the scale of the inspection effort.
Where do I buy the current AS9102 Rev C standard?
AS9102 Rev C — ANSI Webstore carries the current edition. If you’re also purchasing or renewing the base AS9100 standard, the ANSI bundle option is worth checking — buying related aerospace standards together typically costs less than purchasing each one separately.
📥 Free Resources
- ISO 9001 Roadmap — step-by-step implementation guide for manufacturers building or improving a quality management system.
- Manufacturing Compliance Checklist — practical compliance reference covering key ISO, OSHA, and quality requirements for production environments.
- Supplier Quality Checklist — evaluation tool for assessing supplier quality controls and flow-down compliance before audits or new contracts.
- ISO 13485 Gap Assessment Checklist — free checklist for medical device manufacturers assessing their QMS against ISO 13485 requirements.
- AS9100 Rev D Gap Assessment Checklist — 74-item clause-by-clause checklist for aerospace suppliers assessing their QMS before certification, including production process verification and FAI readiness.
Not Sure What to Do Next?
🔹 Still researching how FAI fits into your AS9100 QMS? Start with our What Is AS9100? pillar guide, or see how the standard compares to the ISO 9001 system you may already run in our AS9100 vs. ISO 9001 breakdown.
🔹 Ready to build or clean up your FAI documentation process? 9001Simplified’s documentation templates give your quality team a structured starting point instead of building FAI and nonconformance records from a blank spreadsheet.
🔹 Need to purchase the standards themselves? [AS9102 Rev C — ANSI Webstore] covers the FAI reporting format; the SAE/AS9100 standard series covers the base QMS requirement. Use code CC2026 for 5% off through December 31, 2026.
🔹 Need your team trained on Clause 8.5.1.3 and production process verification? BSI Group’s AS9100 training courses cover the clause requirements behind FAI in detail.
FAI documentation is one of the clearest places where AS9100 suppliers either build a habit of audit-readiness — or build a habit of scrambling. Get the forms right the first time, and every FAIR after that gets faster. That’s the standard The Standards Navigator holds every aerospace article to: Industrial Compliance. Clearly Explained.
Don’t Let a Missing Balloon Number Be the Reason Your FAIR Gets Rejected
Most FAI rejections don’t happen because a supplier doesn’t understand tolerances. They happen because a characteristic never made it onto a balloon number, or a signature landed on the wrong revision.
Shops that build a documented FAI plan — one that spells out full-vs-partial triggers before an ECO ever lands — spend inspection hours on the floor. Shops without one spend those same hours re-explaining themselves to a customer quality rep.
The Standards Navigator tracks AS9100, AS9102, and the aerospace-specific requirements that don’t show up in a generic ISO 9001 checklist — built from the floor up, not from a training manual.
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