First Article Inspection: Release the Process, Not One Sample

First article inspection (FAI) should not mean “measure the first item and, if it passes, start the batch.” A useful FAI proves a narrower but more valuable claim: one identified article, made from the intended production configuration and route, has been checked against every requirement inside the approved FAI scope.

Before repeated production begins, establish why FAI is required, what the article represents, which characteristics must be accounted for, and who can approve the result. Close discrepancies at process level, not only on the sample. Then release production only for the stated configuration and manufacturing route. FAI is not automatically required for every fabricated component, and one conforming article does not by itself demonstrate statistical process capability.

1. Decide Whether FAI Is the Right Control

Start with authority, not a form. A purchase order, customer quality clause, adopted standard or approved project quality plan may require FAI. Where no requirement exists, the buyer may still choose a first-article gate because a new or changed route creates material repeat-defect risk. The decision needs an owner, scope and documented basis.

Do not assume that an aerospace form is a universal manufacturing rule. The official SAE AS9102C page says the standard establishes requirements for performing and documenting FAI and that those requirements complement, rather than replace, customer and applicable statutory or regulatory requirements. SAE lists Revision C as revised on June 28, 2023. The IAQG 9102 page describes the standard as primarily developed for aviation, space and defense, while noting that other sectors may use it when a standardized FAI process is needed. Use it outside that scope only when the contract or approved procedure adopts it.

The U.S. Federal Acquisition Regulation provides a different, contract-specific decision model. FAR Subpart 9.3 tells contracting officers to consider cost, delivery impact, the risk of not testing and less costly quality methods. Within that scope, first-article testing may be appropriate for a new source, changed process or specification, extended production interruption, prior product problem, performance specification or need for a manufacturing standard. Those are useful questions; they are not universal triggers for private steel or solar-component orders.

FAI Scope Decision Matrix

The output is not always “FAI required.” It may be full FAI, a defined partial FAI, another validation method, an approved waiver or a hold pending authority. Record the route before the supplier builds the article.

2. Prove That the Article Represents Production

A first article can conform and still be a poor predictor of the production run. It may have been made by a specialist, on different equipment, with temporary tooling, extra manual adjustment, a nonproduction program or an inspection route that will not be repeated. The report must therefore identify both the article and the process it claims to represent.

Define the production baseline before manufacture:

• released drawing, specification, bill of material and revision;
• material source, grade, condition and traceability route;
• manufacturing site and approved subcontract operations;
• equipment, tooling, fixtures, numerical-control program or other production instructions as applicable;
• planned sequence and special-process references;
• production personnel or qualification requirements where controlled; and
• inspection/test method, location, equipment and acceptance authority.

NASA/JPL provides a clear contract-specific example. Its current supplier clause QC20e requires covered first articles to be produced on production equipment using processes intended for production runs. It also requires characteristic-level results and additional FAI after specified changes or quality degradation. That clause applies only when it governs the subcontract or purchase order, but it illustrates the strength of a representation claim: the inspected article and the future production route must be visibly connected.

Add a representation statement to the report. It should identify the production configuration and route used, every known difference from planned repeat production, and the authority that accepted those differences. An unexplained difference is a hold, not an editorial note.

3. Account for Every Applicable Characteristic

FAI completeness is an accounting problem before it is an inspection problem. Convert the released requirements into a characteristic ledger, then reconcile every applicable requirement to an actual result or an approved not-applicable basis.

Do not limit the ledger to dimensions. Depending on the controlled scope, characteristics may include material identity and condition, geometry, hole or interface locations, assembly relationships, specified process results, surface treatment, marking, functional tests, documentation or other contractual outputs. The responsible technical and quality authorities decide what applies.

Characteristic Accountability Ledger

The first-article identity must connect the physical item to the ledger. Record the part or assembly number, revision, serial or lot identity where required, quantity represented and material/process traceability references. If the controlled scope includes an assembly, define whether constituent parts require their own characteristic accounting. Do not infer that requirement from a template; take it from the adopted basis.

A report containing only nominal values and check marks cannot show what was actually observed. A report containing only measured values cannot show whether all requirements were included. The ledger must reconcile both sides.

4. Separate Conformity from Process Capability

FAI and process capability answer different questions.

• A prototype review asks whether a development item supports design learning or functional evaluation.
• A first-piece check is normally an in-process setup check with a scope defined by the production plan.
• An FAI asks whether the represented article and evidence conform to the approved FAI scope.
• A capability study asks how a stable process distribution performs relative to specification limits over multiple observations.

The NIST process-capability guidance compares the output of an in-control process with specification limits using variation across a data set. It discusses sample adequacy and statistical assumptions because capability describes a distribution, not one item. Therefore, one conforming first article cannot establish a capability index or guarantee that future items will conform.

This boundary affects the release decision. If the contract requires capability, measurement-system analysis, production trial quantities, destructive testing or ongoing statistical control, add those separate requirements to the validation and control plan. Do not relabel a first-article result as that evidence.

FAI also does not replace normal production controls. After release, the supplier still needs the specified incoming, in-process, final, sampling, traceability, change and nonconformance controls. The FAI approval defines the represented starting state; it is not permanent permission to change the route silently.

5. Make Changes Trigger Scoped Revalidation

Revalidation begins with comparison to the last approved baseline. Do not start by choosing “full” or “partial.” Start by describing what changed and what the change can affect.

Review at least these change families when they are relevant to the product and contract:

• design, specification, tolerance or bill-of-material revision;
• material grade, condition, source or approved substitute;
• manufacturing source, facility or subcontractor;
• tooling, fixture, machine, software, numerical-control program or setup method;
• manufacturing sequence, joining, treatment or inspection/test method;
• production interruption, storage event, damage or maintenance that may alter the route; and
• nonconformity trend, field problem or quality degradation that calls the prior representation into question.

Classify impact rather than importance by opinion. A change with no credible effect on an approved characteristic or representation assumption may need only documented review. A localized change can justify a partial or delta FAI covering the changed and affected characteristics. A broad, interacting or uncertain change may require a full FAI or another qualification route. The contractually authorized person makes that decision.

FAR Subpart 9.3 includes process/specification changes and extended production interruption among its use conditions, but only within federal acquisition scope. AS9102C and customer clauses may define different re-accomplishment rules. Record the exact source, affected characteristic population, unchanged evidence reused, new evidence required and approval. “Same part number” is not a change-impact analysis.

Keep the prior report immutable. Issue a linked revalidation record that shows the earlier approved baseline, reason for revalidation and new scope. This makes the evidence chain auditable and prevents a partial update from appearing to be a complete new approval.

6. Close Discrepancies at Process Level

A failed first-article characteristic is not resolved merely because the sample is reworked. The buyer needs to know whether the same cause can affect repeat production.

First, contain the article and any related material or pieces produced under the same condition. Identify the violated requirement and record the actual result. Then determine whether the cause sits in the design baseline, material, tooling, program, procedure, equipment, operator qualification, inspection method or another production input. Route any requirement change through the authorized change system.

Within its own scope, FAR Subpart 9.3 explicitly separates changes to drawings, designs or specifications from the notice that approves, conditionally approves or disapproves a first article. That is a useful general boundary: an approval record should not quietly rewrite the requirement it claims to verify.

The closure package should show:

1. the affected characteristic and population;
2. approved disposition of the article;
3. identified process cause or documented rationale when cause remains under investigation;
4. corrective action to the production route;
5. reinspection or retest results;
6. impact on other characteristics and existing evidence; and
7. renewed approval or a continuing hold.

If a deviation or concession permits the individual article to be used, separately decide whether the production process is released. Product disposition and process validation are related but not identical decisions.

7. Release Production with an Explicit Scope

The final approval should state what may proceed, not merely that the report is “accepted.” Bind the decision to the product configuration, represented route, evidence package and next revalidation conditions.

FAI Production Release Record

“Released” applies only to the stated product and represented route. “Conditional” should be used only when the governing contract permits it and the record states the open item, limitation, owner and closure point. “Returned” means defined corrections or evidence are required. “Held” means production cannot proceed because authority, representation, coverage or closure is missing.

If the supplier changes a represented condition after approval, reopen the impact decision before affected production continues. The release record is a configuration-controlled gate, not a certificate of permanent capability.

Related Resources

• Quality and Manufacturing — commercial parent for East Baoyu's quality and manufacturing information.
• Steel Fabrication ITP — establish the project-wide inspection and record architecture around the FAI event.
• Project Document Register — control submission, review and status of the FAI package and related records.
• Steel Fabrication Drawing Approval Workflow — freeze the released technical baseline before the article is produced.

References

• SAE International, AS9102C — Aerospace Series: First Article Inspection Requirements, revised June 28, 2023.
• International Aerospace Quality Group, 9102 First Article Inspection Requirement scope and deployment page.
• U.S. Acquisition.gov, Federal Acquisition Regulation Subpart 9.3 — First Article Testing and Approval.
• NASA Jet Propulsion Laboratory Supplier Portal, QC20e — Delivery of First Article Inspection Records, current clause checked August 24, 2026.
• NIST/SEMATECH, e-Handbook of Statistical Methods: What Is Process Capability?

Confirm the current contract, adopted standard edition, customer supplements, released product requirements and approval authority before using any of these sources for a real order.

Next Step: Submit the First Article Basis

For a supplier-side gap review, send the PO or quality clause, adopted FAI standard and form, released drawing/specification/BOM, change notice, intended production route, characteristic list, first-article identity, inspection/test results, discrepancy closure and approval matrix through the East Baoyu contact page.

East Baoyu can review the supplied package for missing inputs, incomplete characteristic accounting and unclear record links. The buyer's authorized quality and technical representatives retain responsibility for FAI applicability, methods, acceptance, capability requirements and production release.