EN 1090 vs AS9110C
EN 1090
European standards for structural steel/aluminium execution and CE marking
AS9110C
Aerospace QMS standard for aircraft maintenance organizations.
Quick Verdict
EN 1090 mandates CE marking for structural steel/aluminium in EU construction via FPC and execution classes, while AS9110C certifies aerospace MRO QMS for safe maintenance. Fabricators adopt EN 1090 for market access; MROs use AS9110C for contracts and compliance.
EN 1090
EN 1090 Execution of steel and aluminium structures
Key Features
- Risk-based Execution Classes (EXC1-EXC4) scaling requirements
- Mandatory Factory Production Control (FPC) certification
- CE marking for structural steel/aluminium components
- ISO 3834-aligned welding quality management
- Material traceability and NDT inspection regimes
AS9110C
AS9110C Quality Management Systems for Aircraft Maintenance
Key Features
- Counterfeit parts prevention and detection controls
- Configuration management and traceability requirements
- Maintenance planning and release-to-service processes
- Risk-based thinking integrated across operations
- Human factors and organizational knowledge management
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
EN 1090 Details
What It Is
EN 1090 is a harmonized European standard family (EN 1090-1/2/3) for execution and conformity assessment of structural steel and aluminium components under the Construction Products Regulation (CPR). Its primary purpose is ensuring safe fabrication, assembly, and market placement via CE marking. It uses a risk-based approach through Execution Classes (EXC1-EXC4) linking consequence, service, and production categories to scaled requirements.
Key Components
- **EN 1090-1Conformity assessment, Factory Production Control (FPC), Declaration of Performance (DoP).
- **EN 1090-2/3Technical rules for steel/aluminium (welding, tolerances, corrosion, NDT).
- Core principles: traceability, ISO 3834 welding alignment, notified body certification with surveillance.
Why Organizations Use It
Mandated for EU/EEA market access; reduces liability, enables high-risk projects, builds trust via certified quality. Offers risk control, rework reduction, competitive bidding edge.
Implementation Overview
Phased: gap analysis, FPC build, personnel training, NB certification (3-12 months). Applies to fabricators; requires audits, ongoing surveillance. Targets construction manufacturers continent-wide.
AS9110C Details
What It Is
AS9110C, or Quality Management Systems Requirements for Aviation Maintenance Organizations, is an international certification standard building on ISO 9001:2015 and AS9100D. Tailored for Maintenance, Repair, and Overhaul (MRO) providers, it uses risk-based thinking (RBT) and PDCA cycles to ensure airworthiness, safety, and regulatory compliance in aviation services.
Key Components
- 10 clauses (4-10) per ISO High Level Structure: context, leadership, planning, support, operations, evaluation, improvement.
- MRO-specific: configuration management, counterfeit parts prevention, human factors, project management, traceability.
- Emphasizes documented information, internal audits, management reviews.
- Certification via accredited registrars, listed on IAQG OASIS.
Why Organizations Use It
- Contractual mandates from OEMs/airlines; aligns with FAA/EASA Part-145.
- Mitigates safety risks, reduces rework/AOG events, boosts efficiency.
- Enables market access, supplier qualification, competitive edge.
- Builds trust with regulators, customers, stakeholders.
Implementation Overview
- Phased: gap analysis, process mapping, training, pilots, audits, certification.
- 6-12 months typical; for global MROs of all sizes.
- Requires 3+ months operational data pre-certification. (178 words)
Key Differences
| Aspect | EN 1090 | AS9110C |
|---|---|---|
| Scope | Execution and conformity of steel/aluminium structures | QMS for aviation maintenance, repair, overhaul |
| Industry | Construction, structural metal fabrication (EU/EEA) | Aerospace MRO, repair stations (global aviation) |
| Nature | Harmonized standard enabling mandatory CE marking | Voluntary certification QMS standard |
| Testing | FPC certification, ITT/ITC, notified body surveillance | Internal audits, management review, registrar certification |
| Penalties | Market exclusion, legal liability without CE mark | Loss of certification, contract ineligibility |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about EN 1090 and AS9110C
EN 1090 FAQ
AS9110C FAQ
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