AS9100 Rev D (Aviation, Space, and Defense Quality Management System) is the aerospace industry's quality standard, issued by the International Aerospace Quality Group (IAQG). It builds on ISO 9001 with additional requirements specific to the safety criticality and regulatory environment of aerospace products.
What AS9100 requires beyond ISO 9001
AS9100 is a superset of ISO 9001 — everything in ISO 9001 is included, plus aerospace-specific additions. The most significant additions for precision metal component manufacturers:
Risk management: AS9100 requires a formal risk management process applied to product realisation — identifying, assessing, and mitigating risks to product conformance throughout the manufacturing process. This goes beyond ISO 9001's process-level risk thinking.
Configuration management: Design changes, drawing revisions, and manufacturing process changes must be controlled through a formal configuration management system. "We changed the material supplier" is not acceptable without a documented change assessment and, where applicable, customer notification.
First Article Inspection (FAI) — AS9102: For new part numbers or when significant changes are made, AS9100 requires a comprehensive First Article Inspection following AS9102 methodology. This documents every drawing characteristic against a physical first article with objective evidence (measurement data, material certs, process records).
Customer-specific requirements flow-down: Aerospace prime contractors (Boeing, Airbus, Raytheon, MBDA, etc.) each publish their own customer-specific requirements (CSR) that flow down to their supply chain. AS9100 requires suppliers to identify and comply with these CSRs. This is the mechanism by which prime-specific practices (Boeing D1-9000, Airbus AIPI) reach Tier 2 and Tier 3 suppliers.
Counterfeit parts prevention: AS9100 includes specific requirements for preventing counterfeit and suspect unapproved parts from entering the supply chain. For raw materials, this means certificate verification and, for critical applications, independent verification testing.
NADCAP — special process approvals
NADCAP (National Aerospace and Defense Contractors Accreditation Program) is a separate accreditation programme for special processes — processes where the quality of the output cannot be fully verified by inspection (heat treatment, chemical processing, NDT, welding, surface treatment).
Common NADCAP accreditations relevant to precision metal manufacturing: - Heat treatment - Chemical processing (anodising, plating, passivation) - Non-destructive testing (NDT/NDE) - Welding
NADCAP accreditation requires a stringent periodic audit by trained industry auditors. It is distinct from AS9100 — a factory can be AS9100 certified without NADCAP, and a NADCAP-approved special process supplier may have its own quality system separate from AS9100.
For aerospace Tier 1 and Tier 2 applications, prime contractors typically require NADCAP-approved heat treatment and chemical processing. This is a significant capability gap in Taiwan's current aerospace supplier landscape.
Where Taiwan precision machining fits in the AS9100 world
A Taiwan precision machining facility working toward AS9100 certification (or with an ISO 9001 foundation compatible with AS9100 expansion) can effectively serve:
Tier 3/4 structural components: Non-safety-critical brackets, frames, mounting hardware, and assemblies where AS9100 is desirable but NADCAP is not required.
Tooling and fixtures: Aerospace jigs, fixtures, and ground support equipment are significant precision machining applications that do not require NADCAP and often have less stringent AS9100 requirements than flight hardware.
Commercial-grade hardware: Hardware used in aircraft interiors, ground support, and non-structural applications that does not require full airworthiness traceability.
Development and prototype work: Early-stage components for design validation before production tooling is committed. The speed of Taiwan prototyping has value even in aerospace programs.
Power Honour's roadmap
We are building toward AS9100 certification, starting from our existing ISO 9001 foundation and CE/UIAA certification experience. Our current state — documented QMS, full material traceability, IQC/IPQC/OQC, and first article inspection capability — covers the majority of ISO 9001's requirements. The AS9100-specific additions (formal risk management, configuration management, CSR flow-down management) are the focus of our current development programme.
We are currently able to serve aerospace development programmes and non-safety-critical precision machining applications. We invite early conversations with aerospace procurement teams who are evaluating Taiwan as an addition to their supply base.