First Article Inspection is the quality gate that stands between a new part design and production release — yet it remains one of the most misunderstood requirements in aerospace and defense manufacturing. Whether you are preparing your first FAIR package for an OEM submission or trying to understand why your last one came back rejected, this guide walks through everything AS9102 requires, what each form captures, and how to pass on the first attempt without drowning your team in paperwork.
iFactory's digital FAI module structures every AS9102 form, auto-populates from your BOM, and routes approvals electronically — no more lost traveler packets.
What Is First Article Inspection?
First Article Inspection (FAI) is a formal verification process that confirms a production process can consistently produce a part or assembly that meets all engineering design requirements. It is not a prototype review or a one-time dimensional check — it is a complete, documented demonstration that the manufacturing process, tooling, materials, and controls are capable of producing conforming product at production rates.
The result of an FAI is a First Article Inspection Report (FAIR) — a structured package of forms, measurements, material certifications, and process documentation submitted to the customer for approval before production shipment is authorized.
When Is an FAI Required?
AS9102 defines specific trigger events that require a full or partial FAI. Understanding these triggers prevents the most common submission mistake — sending a partial FAIR when a full one is required.
- New part number — first time ever produced
- New supplier producing an existing part number
- Engineering change that affects form, fit, or function
- Production break of 2+ years (customer-defined threshold)
- Change in manufacturing location or facility
- Change in manufacturing process, tooling, or raw material source
- Change that affects a design characteristic on the drawing
- Minor process change that does not affect design characteristics
- Change in subcontractor for non-critical processing (e.g., plating vendor)
- Resubmission after a rejected FAIR with only specific items corrected
- Customer-approved waiver for low-risk administrative changes
AS9102 Explained: The Three Forms
AS9102 Rev B structures the FAIR around three distinct forms. Each form has a defined scope, required fields, and responsible party. Here is what each one covers — in plain English.
Design Documentation
Part Number, Drawing, Materials & FinishForm 1 establishes the identity of the part and the design baseline against which all measurements are taken. It links the physical part to a specific revision of the engineering drawing, materials specification, and applicable process specifications.
Product Accountability
Raw Material, Purchased Parts & Subcontracted ProcessesForm 2 provides material and subcontractor traceability. Every material on the drawing bill of materials — and every special process applied to the part — must have a corresponding entry with certification documentation attached.
Characteristic Accountability
Dimensional, Functional & Cosmetic VerificationForm 3 is the most labor-intensive section of the FAIR — and the most commonly rejected. Every characteristic called out on the engineering drawing must be ballooned, listed in sequence on Form 3, measured on the first article part, and recorded with the actual measurement and pass/fail disposition.
FAI vs. PPAP: Which Standard Applies to Your Industry?
Engineers moving between aerospace and automotive frequently encounter both AS9102 (FAI) and AIAG PPAP (Production Part Approval Process). They serve the same fundamental purpose but differ significantly in structure, required elements, and submission levels.
Why FAIRs Get Rejected: The 7 Most Common Failures
An analysis of FAIR rejection data from aerospace Tier 1 and Tier 2 suppliers consistently surfaces the same failure modes. These are preventable with the right process and tooling.
Missing or unbalooned characteristics
Form 3 is submitted without a ballooned drawing, or not all drawing callouts are numbered and captured. Inspectors annotate the original drawing rather than creating a clean balloon set. Rejection rate for this issue alone: approximately 38% of first-time FAIR submissions.
Drawing revision mismatch
The FAIR is prepared against Rev C of a drawing, but the customer's current released revision is Rev D. All measurement data is against the wrong baseline — full resubmission required.
Material certification gaps
Form 2 lists a material specification, but the attached CoC does not include full chemical and mechanical test results, or the lot number on the CoC does not match the material used for the first article part.
Expired Nadcap or processor accreditation
The special process certifications attached to Form 2 reference a processor whose Nadcap scope has lapsed. Even a one-day expiration invalidates the FAIR for that process.
No statistical evidence for Key Characteristics
KCs are listed on Form 3 with a single measurement. AS9102 requires a process capability study — minimum 30 samples, Cpk ≥ 1.33 — for each identified Key Characteristic.
Unsigned or undated forms
All three forms require the printed name, signature, and date of the quality authority who compiled and verified the FAIR. A single missing signature field triggers a complete rejection, regardless of measurement conformance.
Out-of-spec measurement with no disposition
A characteristic is measured outside tolerance, recorded faithfully — but no Non-Conformance Report or deviation/waiver is attached. The FAIR must account for every out-of-spec finding with a formal disposition before submission.
iFactory validates your FAIR package before submission — flagging missing signatures, expired certs, unballooned characteristics, and KC evidence gaps before your customer sees them.
The FAI Process: From Kickoff to Customer Approval
A successful FAI follows a defined sequence. The most common schedule overruns happen when teams start measuring before design documentation is confirmed — then have to redo work when a drawing revision is issued mid-inspection.
FAI Planning & Trigger Confirmation
Confirm FAI is required (full or partial) per AS9102 Section 4. Identify the correct drawing revision and freeze design documentation. Assign FAI team: quality engineer, metrology, materials, and process owner. Establish completion date vs. customer delivery requirement.
Drawing Balloon & Characteristic Log
Create the ballooned drawing — number every dimension, tolerance, GD&T callout, surface finish, and note on the engineering drawing. Transfer each balloon number to Form 3 with nominal value, tolerance, and characteristic type (KC, critical, major, minor).
Material & Process Documentation (Form 2)
Collect material certifications for all drawing-called materials. Verify chemical and mechanical compliance to specification. Collect special process certifications — confirm Nadcap scope and expiration. Verify lot/heat traceability to the first article parts being measured.
Dimensional & Functional Inspection (Form 3)
Inspect the first article part(s) on calibrated CMM, optical comparator, or hand gauges as appropriate. Record actual measurements against each ballooned characteristic. For KCs, run process capability study (minimum 30 pieces). Document any out-of-spec findings immediately — open NCR and initiate deviation/waiver process if applicable.
FAIR Package Assembly & Internal Review
Compile all three forms with supporting documentation. Internal quality review confirms: all characteristics captured, all certs attached, all signatures complete, all deviations formally dispositioned. This internal gate catches the seven rejection reasons before the customer does.
Customer Submission & Approval
Submit FAIR through customer portal or directly to their supplier quality engineer. Respond to any RFIs (Requests for Information) within the customer's SLA window — typically 5 business days. Upon approval, production release is authorized. FAIR is archived and remains current until the next trigger event.
How iFactory Digitizes the FAI Process
Paper-based FAIR packages — travelers, loose certs, PDF annotations — are the primary reason aerospace suppliers average 12 business days to close an FAI. iFactory's digital FAI module compresses that to under 3 days for experienced teams on recurring part numbers.
Auto-Populated Forms from BOM
Form 1 and Form 2 fields populate from your item master and Bill of Materials — part number, revision, material specs, and approved processor list — eliminating manual transcription.
Digital Balloon Linking
Upload your drawing; link each annotated balloon number directly to the corresponding Form 3 characteristic row. No transcription, no numbering errors, and a full audit trail back to the drawing annotation.
Cert Expiration Tracking
Attach material CoCs and special process certifications directly to Form 2 records. iFactory alerts you when a Nadcap accreditation or process cert is approaching expiration — before it causes a rejection.
Pre-Submission Validation
Before any FAIR is submitted, iFactory runs a completeness check — flagging unsigned fields, out-of-tolerance characteristics without dispositions, missing KC capability data, and expired certifications.
Electronic Approval Routing
Internal review and approval routed electronically with role-based sign-off. Full audit trail of who approved what and when — meeting AS9102 signature requirements without physical paperwork.
Customer-Ready PDF Export
Generate a formatted FAIR package PDF matching the AS9102 form layout — ready for submission through Boeing, Lockheed, RTX, or any OEM supplier portal — in one click.
Frequently Asked Questions
iFactory's digital FAI module eliminates the manual steps that cause rejections — from balloon linking and cert tracking to pre-submission validation and electronic approval routing.
