✈️ AS9100
AS9100 Rev D Inspection & Quality Suppliers for Aerospace Parts
Aerospace buyers do not ask whether an inspection supplier is good; they ask whether the supplier can prove every measurement on an OASIS-traceable, AS9102-formatted record that will survive a customer source-inspection visit and an eventual escape investigation. AS9100 Rev D bolts roughly a hundred aerospace-specific requirements onto the ISO 9001 frame, and a surprising share of them live in the inspection function. Below is what those requirements actually demand of a quality lab, and how to confirm the certificate before you place flight-hardware work.
AS9100ISO 9001NADCAP
AS9100 Rev D contains the full text of ISO 9001:2015 plus aerospace additions, and several of the heaviest additions are inspection-facing. Clause 8.5.1.3 controls production equipment, tools, and software programs, including the validation of CMM measurement programs before first use. Clause 8.4 (externally provided processes) imposes far more rigorous control of any subcontracted measurement or special-process testing, including flowdown of customer requirements. The defining aerospace concept, though, is the key characteristic: clause 8.5 and the surrounding requirements oblige the supplier to identify, control, and monitor variation in characteristics the customer or design has flagged as critical, often with statistical evidence rather than a single pass/fail reading.
Two more deltas reshape an inspection operation. First, clause 8.1.4 on prevention of counterfeit parts forces the lab to control raw-material and hardware authenticity, which for an inspection house means verifying material certs and lot traceability as part of acceptance, not just dimensions. Second, the standard's emphasis on configuration management (clause 8.1.2) and on product safety (8.1.3) means the inspection record must lock to a specific drawing revision, effectivity, and serial-number or lot traceability so a later airworthiness question can be reconstructed.
The net effect: an AS9100 inspection job is not just a dimensional report. It is a configuration-controlled, traceable acceptance record built to be defended years later during a fleet investigation. That is why AS9100 inspection costs more and takes longer than the ISO 9001 equivalent on an identical part.
First article inspection per AS9102 and what a complete package contains
AS9102 is the aerospace FAIR standard, and a Rev D supplier should produce it natively. A complete first article package is three forms. Form 1 is part-number accountability, identifying the part, drawing revision, and any subassembly rollup. Form 2 is product accountability for raw material, special processes, and functional testing, capturing material specs, heat/lot numbers, and the certifications behind every special process such as heat treat or NDT. Form 3 is the characteristic accountability sheet, where every ballooned drawing characteristic is listed with its requirement, the measured result, and the gage or technique used.
A frequent escape source is incomplete Form 2 flowdown. If a part went through a NADCAP special process, Form 2 must reference the accredited supplier and certification, and the buyer should see that chain. Likewise, a partial FAIR (delta FAIR) is required when a drawing revision changes, a process or source moves, or production lapses beyond two years per AS9102 rules, and buyers routinely accept stale full FAIRs without realizing a delta was triggered. Confirm the FAIR matches the current drawing revision and that any change since the last FAIR was re-balloned.
Beyond the FAIR, expect a Certificate of Conformance with full traceability, raw-material certs, special-process certs, and, for key characteristics, the variable data or SPC evidence the customer specified. For source-controlled or government work, also expect the supplier to support a source-inspection or first-article buyoff at their facility.
Verifying the certificate in OASIS and avoiding scope traps
Unlike a generic ISO 9001 certificate, AS9100 registrations are tracked in the IAQG OASIS database (Online Aerospace Supplier Information System). This is the authoritative source. Search the supplier by name or certificate number and confirm an active AS9100D certificate, the certification body, the audit dates, and the registered scope. OASIS also surfaces certificate status changes, so a suspended or withdrawn registration is visible there even when the supplier's PDF still looks current. If a supplier claims AS9100 and is not in OASIS, that is a hard stop.
Scope is where aerospace buyers get caught. An AS9100 certificate scope reading 'machining of aerospace components' may not cover standalone inspection or dimensional services performed for other manufacturers' parts. Read the scope statement against the exact service you are buying. Also verify the certificate is AS9100 Rev D (the current revision), not an expired Rev C, and that the certification body is accredited under the IAQG scheme rather than a generic ISO body.
Finally, confirm currency. AS9100 runs a three-year cycle with annual surveillance, and aerospace customers commonly require evidence of the most recent surveillance audit and the supplier's on-time-delivery and quality performance scores, which OASIS can also reflect. A certificate that is active but attached to a poor performance record is a yellow flag worth probing before flight work goes out the door.
Programs and applications that drive AS9100 inspection demand
AS9100 inspection capability concentrates around airframe structures, engine hardware, and avionics housings where a dimensional escape can become an airworthiness event. Turbine and engine components such as blades, vanes, disks, and combustor parts in Inconel 718, Rene 41, or single-crystal nickel superalloys demand both tight dimensional inspection and integration with NADCAP special-process records. Structural fittings and bulkheads in 7075-T7351 and 7050 aluminum, or in Ti-6Al-4V, push high-feature-count FAIRs with demanding true-position and profile callouts.
Defense and space programs add layers: flight-safety-critical and fracture-critical parts carry mandatory inspection points, serialized traceability, and often customer source inspection or DCMA government source inspection. Space hardware adds cleanliness, contamination, and sometimes CT or industrial radiography acceptance that an AS9100 lab must be able to document. These applications are also where counterfeit-part controls under clause 8.1.4 matter most, since a falsified material cert on a fracture-critical fitting is a catastrophic risk.
For commercial aerostructures and MRO, demand centers on repeatable lot inspection, repair-disposition documentation, and the ability to support OEM-specific quality clauses (Boeing D6-51991, Airbus requirements, and similar). When you source AS9100 inspection, match the supplier's program experience to your application, because a shop strong in commercial machining FAIRs may not be set up for serialized fracture-critical acceptance.
Frequently Asked Questions
A generic first article inspection is typically a dimensional report listing measured values against drawing requirements, often on a supplier's own template. An AS9100 FAIR follows AS9102 and is a structured three-form package: Form 1 for part-number accountability and assembly rollup, Form 2 for raw-material, special-process, and functional-test accountability with heat/lot numbers and process certifications, and Form 3 for characteristic accountability where every ballooned drawing feature is recorded with its requirement, result, and measurement method. The aerospace version enforces traceability that the generic version does not: material authenticity, special-process source certification, configuration control to a specific drawing revision, and key-characteristic monitoring. AS9102 also defines when a partial or delta FAIR is required, such as a drawing revision change, a process or source change, or a production lapse exceeding two years. A generic FAIR has no such trigger rules. If your part flies, you want the AS9102 package, because it is the record an airworthiness or escape investigation will demand, and an incomplete Form 2 is one of the most common sources of aerospace inspection escapes.
Use the IAQG OASIS database, which is the authoritative registry for aerospace quality certifications. Search the supplier by name or certificate number and confirm an active AS9100 Rev D certificate, the certification body, the audit dates, and the registered scope. OASIS reflects status changes, so a suspended or withdrawn certificate is visible there even when the supplier's PDF appears valid. Three checks matter most. First, confirm the certificate is Rev D, the current revision, not an expired Rev C. Second, read the scope statement against the exact service you are buying, because a scope covering 'machining of aerospace components' may not cover standalone inspection or metrology services for other companies' parts. Third, confirm currency by asking for the most recent surveillance audit date, since AS9100 runs a three-year cycle with annual surveillance. If a supplier claims AS9100 and does not appear in OASIS, treat that as a hard stop. Many aerospace primes also review the supplier's OASIS-linked performance scores before awarding flight work.
AS9100 itself does not automatically require NADCAP, but the combination is effectively mandated by the major aerospace primes through their supplier quality clauses. AS9100 clause 8.4 requires rigorous control of externally provided processes, and most OEM flowdowns specifically require NADCAP accreditation for special processes including nondestructive testing (penetrant, magnetic particle, radiography, ultrasonic, eddy current), heat treat, chemical processing, and welding. So if your aerospace part requires NDT as part of inspection acceptance, the realistic requirement is that the NDT be performed by a NADCAP-accredited source and referenced on AS9102 Form 2. An AS9100 inspection supplier that performs only dimensional work will subcontract NDT to a NADCAP lab and must flow down and document that chain. When sourcing, ask whether NDT is in-house under NADCAP or subcontracted, and request the NADCAP certificate and scope for the relevant method. Note that NADCAP accreditation for personnel also ties to NAS 410 certification levels for NDT inspectors, which the supplier should be able to evidence.
On an identical part, AS9100 inspection typically carries a 20 to 50 percent premium over an ISO 9001 dimensional report, and the gap widens with serialization and key-characteristic data requirements. The cost driver is documentation and traceability, not measurement time alone: building a complete AS9102 three-form package, capturing material and special-process certs, balloning to a controlled drawing revision, and recording key-characteristic variable data all add hours. A moderate-complexity aerospace FAIR (30 to 60 characteristics) commonly runs 600 to 2,000 USD and 3 to 7 business days once parts and all supporting certs are in hand. Fracture-critical or serialized flight-safety parts can run materially higher and require customer source inspection scheduling that adds calendar time. Delta FAIRs triggered by drawing revisions or process changes add incremental cost each time. Plan schedule around certificate availability too: if a special-process cert from a NADCAP source is late, the FAIR cannot close. The premium buys a defensible, configuration-controlled record, which is the actual product you are paying for in aerospace.
At a minimum: a Certificate of Conformance with full lot or serial traceability referencing the drawing number and revision and the PO; a complete AS9102 FAIR package (Forms 1, 2, and 3) for first articles; raw-material certifications with heat/lot numbers tying to Form 2; special-process certifications (heat treat, NDT, plating, welding) from accredited sources, ideally NADCAP; and any key-characteristic variable data or SPC evidence the customer specified. For serialized or fracture-critical parts, expect serial-number-level traceability and, where required, evidence of customer or government source inspection buyoff. You should also receive nonconformance and disposition records (use-as-is, rework, repair, scrap) for any deviations, since AS9100 clause 8.7 requires documented control of nonconforming product and customer concession where applicable. Retain the entire package: under aerospace traceability expectations and many OEM clauses, these records support airworthiness and must be reconstructable years later during fleet or escape investigations. If any element is missing, particularly Form 2 special-process flowdown, the package is incomplete regardless of how clean the dimensional results look.
Last updated: July 2026
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