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AS/EN 9110 “Requirements for Aviation Maintenance Organisations”


The aerospace sector is governed by stringent standards to ensure safety, reliability, and quality in all facets of its operations. AS/EN 9110 is one such standard specifically designed for aviation maintenance organisations. This standard outlines the requirements these businesses must meet to maintain and repair aircraft and aerospace components while ensuring compliance with regulatory norms and customer expectations.

AS/EN 9110, part of the AS 9100 series which adapts the ISO 9001 quality management systems to the aerospace sector, focuses on the maintenance segment of the industry. It is designed for organisations that provide post-production maintenance, repair, and overhaul (MRO) services. These services are crucial for the upkeep of aircraft performance and safety standards through the lifecycle of the equipment.

The key requirements of this standard include:

  1. Safety Management: AS/EN 9110 emphasises the establishment of a comprehensive safety management system to identify risks, implement protective measures, and ensure continual safety improvements.
  2. Quality Management System (QMS): The standard requires a robust QMS that includes processes for continuous improvement, defect prevention, and reduction of variation and waste in the supply chain.
  3. Personnel Qualifications: Maintenance organisations must ensure that all personnel involved in maintenance tasks are adequately qualified and undergo regular training to keep up-to-date with the latest technologies and practices.
  4. Project Management: Effective management of maintenance projects, including clear communication channels, defined roles and responsibilities, and a focus on meeting customer and regulatory requirements.
  5. Technical Documentation: Accurate and accessible documentation is crucial. This includes work instructions, maintenance manuals, and records that ensure transparency and traceability of all maintenance activities.
  6. Customer Satisfaction: A focus on enhancing customer satisfaction through timely service delivery, quality maintenance work, and effective handling of customer complaints and feedback.
  7. Product Conformity and Airworthiness: Ensuring that all serviced components meet the necessary standards of conformity and airworthiness as per regulatory and customer requirements.

AS/EN 9110 was published in November 2016 and applies internationally.

as/en 9110

Does AS/EN 9110 affect my business?

The implementation of AS/EN 9110 has significant impacts on aviation maintenance organisations:

  • Enhanced Safety and Reliability: The standard helps organisations enhance the safety and reliability of their maintenance operations, which is paramount in the aerospace industry.
  • Operational Efficiency: By standardising processes, the standard helps businesses streamline operations, reduce errors, and increase efficiency.
  • Market Access: Compliance with AS/EN 9110 is often a prerequisite for accessing global markets and becoming a preferred supplier in the highly competitive aerospace sector.
  • Regulatory Compliance: Adhering to this standard helps organisations meet various regulatory requirements, reducing legal risks and potential penalties.

AS/EN 9110 is essential for ensuring high standards in the maintenance of aircraft and aerospace components. For businesses in the aviation sector, achieving and maintaining certification to this standard is not just about regulatory compliance; it’s about ensuring the highest levels of safety, reliability, and customer satisfaction. Organisations that embrace these standards can enhance their operational efficiencies and position themselves competitively in the global market.

Do I need AS/EN 9110 in my ISO Compliance Register?

AS/EN 9110 primarily affects businesses involved in the maintenance, repair, and overhaul of aircraft and aerospace components. This includes:

  • Independent MRO Providers: Companies that specialise in maintenance services for different types of aircraft and components.
  • OEMs with MRO Divisions: Original Equipment Manufacturers that also offer maintenance services for their products.
  • Airline In-House Maintenance Departments: Airlines that conduct their own maintenance operations to manage costs and maintain control over the quality and timing of the maintenance.
  • Military Maintenance Units: Military organisations that perform maintenance on their aircraft and aerospace equipment.

If your business falls under any of these categories then we strongly recommend including AS/EN 9110 in your ISO Compliance Register.

Legislation related to AS/EN 9110

Legislation related to AS/EN 9110 include:

  • The Air Navigation Order 2016
  • Civil Aviation Act 1982
  • Corporate Manslaughter and Corporate Homicide Act 2007
  • Health and Safety at Work etc Act 1974

More information

Visit the AS/EN 9110 article on the website.

Create an account in the ISO Compliance Register App and add this article to your Register.