AeroQuality Insight

AS9120 / DISTRIBUTION QUALITY

AS9120 Aerospace Distributor Quality Management Guide

Role, operational scope, product classification and compliance architecture

AS9120 is tailored to distributors within the Aviation, Space and Defense supply chain. The practical challenge is not manufacturing control, but preserving requirement flow-down, identity, lot traceability, configuration and documentary conformity as product moves between sources and customers.

AS9120 distributor control is a chain-of-custody problem: requirements, identity, traceability and conformity evidence must survive every handoff.

1 / CORE ROLE

AS9120 distributor controls differ fundamentally from AS9100 manufacturing controls

DimensionAS9100 manufacturing contextAS9120 distributor context
Role definitionDesign, fabrication, machining, assembly and product realization activities.Procurement, warehousing, inventory management, order fulfillment and distribution.
Operational natureProcesses may intentionally change physical, chemical or functional product characteristics.Primary emphasis is preserving product identity and conformity. Limited handling such as repackaging, cutting-to-size or kitting requires controlled boundaries and applicable customer approval.
Quality focusDesign controls, production process stability, special-process control, tooling and verification.Approved sources, traceability, documentation integrity, product verification and counterfeit-parts prevention.
Airworthiness / regulatory boundaryMay operate under or support production/design approvals where applicable.Normally preserves and transfers approved records rather than creating airworthiness status. Any release-document authority depends on specific regulatory authorization, not distributor status alone.

2 / OPERATIONAL CATEGORIES

Define the boundary of distributor operations

01

Controlled handling

Repackaging, cutting raw material to size, kitting and inventory-support activities can be controlled as documented distributor processes when they do not introduce unauthorized changes to product requirements. Controls should preserve identification, lot integrity, cleanliness and traceability.

02

Outsourced special processing

Where an order requires heat treatment, plating, chemical processing, NDT or another process that changes or verifies material/product characteristics, use approved external sources and flow down the applicable technical, quality and regulatory requirements.

03

MRO / serviceable material

Used, repaired or overhauled product requires clear status identification, segregation, historical records and evidence from appropriately authorized maintenance or repair organizations. The distributor should not create an airworthiness determination outside its authorization.

04

Release evidence

Before shipment, verify that product identity, quantity, lot or serial traceability, required certificates, test records, concessions and customer-specific deliverables are complete and consistent with the order.

CONTROLLED HANDLING FLOW

Keep the traceability chain intact through every handling step

For distributor-controlled handling, the practical flow is:

Inventory → Pick → Repackage / Cut / Kit → Pack → Ship

The process should prevent lot commingling, loss of source identity, FOD introduction, incorrect labels, unauthorized substitutions and document-to-product mismatch.

1IdentifyPart, lot, serial, revision and source
2ProtectSegregation, packaging and handling
3VerifyRecords, certificates and order requirements
4TransferShip product with intact conformity evidence

OUTSOURCED PROCESS CONTROL

Three facets of facilitation control

ORDER

Order confirmation

Confirm the processing specification, revision, customer quality clauses and any required approved-source restriction before placing the subcontract order.

FLOW-DOWN

Requirement flow-down

Transmit the required technical data, acceptance criteria, documentation, customer requirements and regulatory obligations to the external processor.

VERIFY

Verification and delivery

Verify returned certifications, test reports, process records and product identity before acceptance and customer delivery.

3 / PRODUCT CLASSIFICATION

Two product categories require different verification logic

A

Commercial / catalog items

For commercial or standard parts, preserve the original manufacturer configuration, source identity and lot/heat traceability. Verify supplier authorization, applicable specification status and required quality records. Any post-source modification should trigger a fresh review of classification, approval and risk controls.

B

Customer-designated parts

When the customer controls the design baseline, approved sources and manufacturing specification, the distributor acts as a procurement and logistics conduit. Do not introduce substitutions, alternate sources or specification changes without authorization.

C

Verification gates

Confirm part number, revision/configuration, approved source, concessions, certificate completeness and serial/lot identifiers before release.

D

Distributor accountability

The distributor remains responsible for the integrity and accuracy of the identification, verification and traceability records it accepts and transfers under the customer order.

PRACTICAL SCENARIOS

Typical aerospace distribution scenarios

High-reliability electronic components: source through authorized or franchised channels where required, retain OEM/authorized-source evidence and maintain unbroken traceability to reduce counterfeit or remarketed-part risk.

Standard aerospace fasteners: source NAS/MS or other specified hardware from approved sources, repack under controlled conditions, and preserve lot traceability on packaging and shipment records.

Customer-designated structural forgings or castings: procure only from customer-approved sources, preserve the required drawing/configuration baseline and deliver the specified inspection and conformity records with the shipment.

COMPLIANCE ARCHITECTURE

Think in terms of a distributor evidence chain

A useful AS9120 implementation model is:

Customer Requirement → Approved Source → Purchase / Flow-Down → Receipt Verification → Controlled Storage / Handling → Release Verification → Shipment → Retained Traceability

Exact permissions, regulatory release authority, source restrictions and processing boundaries depend on the applicable contract, customer requirements, product type and regulatory authorization. This article is practical guidance, not a substitute for the applicable AS9120 text or regulatory requirements.

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