Aero X Europe provides practical Part 21 design and certification support, helping operators, CAMOs, maintenance organisations, OEMs and defence organisations achieve compliance efficiently while keeping projects moving.
Our team brings extensive experience across military and civil aviation environments, supporting aircraft modification programmes from concept development through to certification and entry into service.
Whether you require support with a minor modification, a major change programme, Supplemental Type Certificate (STC) activity, or ongoing airworthiness considerations, we help ensure regulatory requirements are met without unnecessary delays.
We understand that successful certification is about more than producing documentation. It requires early engagement with stakeholders, effective planning, clear communication and a thorough understanding of the applicable regulations. Our specialists work alongside design organisations, operators, maintenance providers and regulators to provide a seamless path from initial requirement through to approved design data.
Our Part 21 services include:
- Certification strategy development
- Design and certification programme management
- Modification planning and implementation support
- Compliance demonstration and verification activities
- Liaison with UK CAA, EASA and Military Aviation Authority stakeholders
- Design review and certification readiness assessments
- Compliance Verification Engineering (CVE) support
- Airworthiness and continuing airworthiness advice
- Development and review of certification documentation
- Support for Design Organisation Approval (DOA) activities
Aero X Europe's approach combines regulatory expertise with practical engineering experience. We focus on delivering solutions that are technically robust, commercially viable and aligned with operational requirements.
Whether you are introducing new equipment, upgrading aircraft systems, integrating emerging technologies or managing a fleet-wide modification programme, our team provides the expertise needed to navigate Part 21 requirements with confidence.
Our goal is simple: deliver compliant, certifiable solutions that minimise risk, reduce programme delays and help our clients achieve successful project outcomes.

