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for paperwork. After reviewing hundreds of FAIRs flowed down from aerospace and defense primes, the same ten administrative and traceability mistakes appear over and over. This is a field reference for quality engineers, machinists, and program managers who want a clean first submission. **Hanover, PA** — Olympus Machining LLC is an ITAR-registered precision CNC machine shop that delivers AS9102 First Article Inspection Reports as a standard quality artifact on aerospace and defense work. ### At a Glance - The top FAI rejection reasons are administrative: unballooned drawings, missing certifications, blank Form 1 fields, and stale drawing revisions. - AS9102 Rev C requires every design characteristic on the drawing to appear on Form 3 — including notes, GD&T, surface finish, and reference dimensions. - Special processes (heat treat, plating, NDT, passivation) require sub-tier certifications traceable to the customer-approved supplier list. - A signed Form 1 with the wrong PO, revision, or part number invalidates the entire package even if the parts are dimensionally perfect. ## 1\. Unballooned or Inconsistently Ballooned Drawings Form 3 requires one row per design characteristic, each tied to a numbered balloon on the drawing. The most frequent rejection reason is a drawing with no balloons, partial balloons, or balloon numbers that do not match Form 3 row numbers. Reference dimensions, surface finish callouts, and general notes count as characteristics under AS9102 Rev C. **Prevent it:** Use a documented ballooning convention. See our [balloon drawing](/as9102-balloon-drawings) page for the numbering pattern Olympus follows on customer prints. ## 2\. Missing or Mismatched Drawing Revision Form 1 lists the drawing number and revision the FAI was performed against. If that revision does not match the revision on the PO — or if a newer revision was released between manufacture and submission — the FAIR is invalid and a delta FAI is required. **Prevent it:** Verify drawing revision against the PO at kickoff, again at FAI sign-off, and freeze the drawing revision in the job traveler so shop floor and inspection are reading the same print. ## 3\. Incomplete Form 1 Fields Auditors read Form 1 first. Blank fields for FAI type (full, partial, delta), reason for partial FAI, supplier code, or signature blocks trigger an immediate kickback. A common error is leaving "Reason for Partial FAI" empty on a delta submission — the partial reason is mandatory whenever Field 8 is checked. **Prevent it:** Use a Form 1 template with every conditional field flagged. Treat the form as a release gate, not a cover sheet. ## 4\. Missing Material Certifications Form 2 requires a material certification — typically a mill cert or DFARS-compliant material test report — for every raw material listed. Submissions arrive with cert numbers referenced but no attached PDFs, or with certs that do not match the heat or lot number used on the part. On defense work, DFARS 252.225-7009 specialty-metal flow-down is increasingly audited. **Prevent it:** Capture heat or lot numbers at material receipt and on the job traveler. Attach the cert PDF to the FAI package, not just reference it. Review the cert source against the customer's approved material specification before issuing a quote. ## 5\. Special-Process Certifications from Unapproved Suppliers Heat treat, anodizing, passivation, plating, and NDT are special processes under AS9100. The supplier performing the process must hold the correct Nadcap accreditation or appear on the customer's approved supplier list. Submitting a heat-treat cert from a non-Nadcap shop on a Nadcap-required program is a frequent and avoidable rejection. **Prevent it:** Confirm Nadcap or AS9100 status before placing the sub-tier PO. Attach the supplier's accreditation certificate to the FAI package alongside the process certification. ## 6\. Form 3 Measurement Methods Not Specified Each Form 3 row must identify the measurement method — caliper, micrometer, height gage, optical comparator, [CMM](/cmm-inspection-services), surface plate setup — and reference equipment calibration. Rows that list a measured value without an inspection method or calibration reference are routinely rejected on AS9100 supplier audits. **Prevent it:** Pre-assign the inspection method during the planning phase. Tight-tolerance and GD&T characteristics should default to CMM with calibration ID; hand metrology is acceptable for lower-tolerance dimensions. ## 7\. Missing GD&T or Datum Reference Characteristics Position, profile, perpendicularity, runout, and parallelism callouts each count as a separate Form 3 row, and each requires datum reference frame verification. A common rejection pattern is Form 3 capturing nominal dimensions while omitting the GD&T feature control frames that govern function. **Prevent it:** Balloon every feature control frame as its own characteristic. CMM programs should report the datum reference frame used and the actual deviation, not just pass/fail. ## 8\. Wrong FAI Type Selected (Full vs Partial vs Delta) A new part on a new process requires a full FAI. A change to material, process, location, or a two-year production gap requires a partial (delta) FAI covering only the affected characteristics. Submitting a partial FAI when a full FAI is required — or vice versa — gets bounced back even if every characteristic passes. **Prevent it:** Run the AS9102 Rev C trigger list at job kickoff to confirm full versus partial. See our [full FAI vs PFAI](/as9102-fai-vs-pfai) reference for the trigger conditions Olympus uses internally. ## 9\. Inconsistent Units, Precision, or Number Rounding Form 3 measured values must carry at least one more decimal place than the drawing tolerance. A drawing tolerance of ±0.001" with a measured value of "1.250" instead of "1.2503" is treated as insufficient evidence. Mixing metric and imperial units across rows without unit columns is also a frequent flag. **Prevent it:** Standardize the FAI template on a fixed decimal precision tied to the drawing tolerance, and report units explicitly on every row. CMM output files should match the drawing unit system before import to Form 3. ## 10\. No Bubble for Notes, Finishes, or Specifications on the Drawing Surface finish callouts (e.g., 63 µin Ra), heat-treat notes, marking requirements, and reference specifications (MIL-DTL, ASTM, AMS) are characteristics under AS9102 Rev C. They are routinely missed because they live in the notes block rather than the dimensional area of the drawing. A FAIR without a Form 3 row for "Anodize per MIL-A-8625, Type II, Class 2, Black" is incomplete even if the part is anodized correctly. **Prevent it:** Treat every drawing note and every referenced specification as a characteristic during ballooning. Cross-check the notes block before closing Form 3. ## How Olympus Prevents These Rejections FAI cleanliness is a process problem, not an inspector problem. The Olympus quality system attaches the FAI checklist to the job traveler at kickoff, so ballooning, material capture, and measurement method assignment happen before the first chip is cut. Sub-tier accreditation is verified at the PO level. Form 1 is reviewed at two gates — pre-machining and pre-submission — to catch revision drift. This is the same discipline that supports our [CMMC Level 1](/compliance/cmmc-level-1) documentation posture and [quality assurance](/quality-assurance) program. The result is FAI packages that pass on the first submission and reduce buyer-side rework. ## FAQ ### What is the most common AS9102 FAI rejection reason? Unballooned drawings and incomplete Form 3 characteristic coverage — typically missing surface finish, GD&T, or notes-block characteristics — are the single most common reason FAI packages are returned. ### Do reference dimensions count as characteristics on Form 3? Yes. AS9102 Rev C requires reference dimensions to be ballooned and reported, even though they are not directly inspected for acceptance. ### When is a delta (partial) FAI required? When there is a change in design, material, process, manufacturing location, or after a production gap of two or more years. See our [full FAI vs PFAI](/as9102-fai-vs-pfai) reference. ### Does a missing mill cert always reject the FAIR? Yes. Form 2 requires traceability to a certifying document for every raw material. The cert PDF should be attached to the package, not referenced by number alone. ### Do all special processes require Nadcap? Not all — but most aerospace primes flow down Nadcap for heat treat, NDT, chemical processing, and welding. Confirm the requirement in the PO terms before selecting a sub-tier supplier. ### Can a FAI be submitted electronically? Yes — via customer-approved portals or encrypted channels. Unencrypted email is not appropriate for CUI-marked drawings or FAIR packages on defense work. ### How long does an AS9102 FAI take? For a typical CNC-machined part with 30 to 80 characteristics, ballooning, planning, and inspection add one to three days to the production cycle. CMM-heavy parts take longer. ### Does Olympus Machining provide AS9102 FAIs on every aerospace order? Yes, when flowed down by the customer. See our [AS9102 First Article Inspection](/as9102-first-article-inspection) capability page for the full deliverable. Explore Olympus Machining's [AS9102 First Article Inspection](/as9102-first-article-inspection) capability, [balloon drawing convention](/as9102-balloon-drawings), [full FAI vs PFAI](/as9102-fai-vs-pfai) reference, [CMM inspection services](/cmm-inspection-services), or our [credentials and capability statement](/credentials). ## Contact Olympus Machining **Olympus Machining LLC** 639 Frederick St, Suite 1 Hanover, PA 17331 **Phone:** [(717) 634-5094](tel:+17176345094) **Website:** [www.olympusmachining.com](/) **Google Business Profile:** [View on Google](https://www.google.com/search?sca_esv=2f4ed381b998a4d8&kgmid=/g/11kr8nzb2c&q=Olympus+Machining+LLC) **Request a Quote:** [Submit a project](/#submission) ### About Olympus Machining Olympus Machining LLC is a [precision CNC machining](/precision-cnc-machining) shop located in Hanover, Pennsylvania. As a dedicated [CNC machining shop](/) and reliable machining vendor, we provide [CNC milling](/cnc-milling), [CNC turning](/cnc-turning), and [prototype-to-production](/prototype-to-production) services for OEMs and manufacturers nationwide. ## Related Articles [The Complete AS9102 First Article Inspection Checklist for CNC Machined Parts (Free PDF Download) ](/blog/as9102-first-article-inspection-checklist)[AS9102 First Article Inspection for CMMC Level 1 Defense Subcontractors: A Field Guide ](/blog/as9102-fai-cmmc-level-1-defense-subcontractors)[CMM Inspection Capabilities & Reporting Standards: How Precision CNC Shops Prove 0.0005-Inch Tolerances ](/blog/cmm-inspection-capabilities-reporting-standards) ## Related Capabilities from Olympus Machining [ ### AS9102 First Article Inspection AS9102 Rev C FAI services with Forms 1, 2, and 3 documentation. ](/as9102-first-article-inspection)[ ### Full FAI vs Partial FAI (PFAI) When a PFAI is acceptable and when a Full FAI is required. ](/as9102-fai-vs-pfai)[ ### Balloon Drawings for AS9102 Form 3 Balloon drawing preparation for Form 3 characteristic accountability. ](/as9102-balloon-drawings)[ ### CMM Inspection Services Coordinate measuring machine verification with full reporting. ](/cmm-inspection-services) [ ### Submit Your Project for Review Contact Olympus Machining to discuss your CNC machining requirements. ](/#contact) [CNC Milling](/cnc-milling) [CNC Turning](/cnc-turning) [Quality Assurance](/quality-assurance) [Prototype to Production](/prototype-to-production) [Industries Served](/industries-served) [Materials Machined](/materials-machined) [Robotics & Automation Machining](/robotics-automation-machining) [Precision CNC Machining](/precision-cnc-machining) [Careers](/careers) [ITAR CNC Machining for Mid-Atlantic Aerospace OEMs](/itar-cnc-machining-mid-atlantic-aerospace) [CNC Tolerances & GD&T Guide](/resources/cnc-machining-tolerances-gdt-guide) [Reducing CNC Machining Costs](/resources/reducing-cnc-machining-costs) [6061 vs 7075 Aluminum](/materials/6061-vs-7075-aluminum) [Brass vs Bronze Machining](/materials/brass-vs-bronze-machining) [![Olympus Machining LLC logo — CNC machining shop Hanover, PA](/assets/olympus-logo-DbWcTX06.webp)](/) Olympus Machining LLC is a precision CNC machining shop in Hanover, Pennsylvania, providing CNC milling and turning services for OEMs and manufacturers nationwide. 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