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Civil Aviation
We provide civil aviation consultancy to operators, design organisations, and programme teams who need regulatory and technical support that’s grounded in real-world experience. Civil aviation is a safety-critical sector with a regulatory framework to match. Getting the detail right matters. We’re set up to help with that.
We hold UK CAA Part 21J Design Organisation Approval (DOA No. UK.21J.0652). That authorises us to produce approved design data, support modification programmes, and manage certification activity directly, not at arm’s length.
Speak to our civil aviation consultancy team
What sets us apart in civil aviation consultancy
Civil aviation in the UK is operating through a period of meaningful regulatory change. Since separation from EASA, the CAA has been building out its own body of Acceptable Means of Compliance, General Material, and Certification Specifications, a framework that continues to develop and, in several areas, now diverges from the European equivalent. For operators and design organisations, that means the regulatory baseline they’ve worked to for years is no longer static. Staying current requires sustained engagement, not periodic reviews. Our consultants work within that framework every day, across certification programmes, airworthiness management, and design approvals. That proximity to the detail is what keeps our advice grounded.
The civil aviation sector doesn’t reward generalism. Certification programmes involve specific aircraft types, specific regulatory routes, and specific CAA expectations at each stage. Getting that right depends on accumulated experience across real programmes, not just familiarity with the published standards. Our team has managed CAA submissions, assessed modification classifications, supported flight test campaigns, and dealt with the complications that arise when programmes don’t go to plan. That history informs how we approach every new engagement: with a clear view of what’s likely to be straightforward and where the genuine complexity lies.
Design authority
We hold UK CAA Part 21J Design Organisation Approval
DOA status is a formal CAA authorisation, granted only to organisations that can demonstrate consistent technical capability and process rigour, and maintained through ongoing CAA oversight. Our approval (DOA No. UK.21J.0652) covers the full scope of civil aviation design work: major and minor modifications, Supplementary Type Certificates, structural analysis and design, electrical and avionic design certification, and approved repair schemes. We produce that work in-house; clients don’t need to manage a chain of approvals between separate organisations.
Technical scope
Our capability spans the full certification lifecycle
Certification programmes rarely stay within a single technical discipline. A structural modification has avionic implications; a cabin change affects the environmental control system; a repair scheme needs structural sign-off before the approval process can begin. We cover structural design and analysis, electrical and avionic design, cabin systems, environmental control systems, tooling and manufacturing support, and continuing airworthiness management. That breadth means we can follow a programme through its full lifecycle without the handoff problems that come with a fragmented supply chain.
Civil aviation work in practice
Vertical Aerospace, Jig & Tooling Design
Designing and supplying precision assembly tooling to bring the revolutionary VX4 aircraft to life.
View ProjectMore aerospace & defence expertise
Civil aviation is one part of a broader aerospace and defence capability. If your work spans other areas of the sector, the pages below cover the rest of our Aerospace & Defence offer.
Understanding civil aviation consultancy
These are the questions we hear most often from operators and programme teams working through certification and airworthiness challenges
We provide technical and regulatory support to aircraft operators, design organisations, and maintenance providers. That typically means compliance interpretation, airworthiness management, design approvals, modification certification, and regulatory change advice. The scope varies by client, but the work is always about applying specialist knowledge to specific operational challenges, not issuing generic guidance.
If you need approved design data produced, or modifications approved through the Part 21J route, then yes. Without DOA status, a consultancy can advise but can’t produce the approved outputs that CAA certification submissions require. Morson Praxis holds DOA No. UK.21J.0652, covering the full range of civil aviation design and certification work described on this page.
An ARC is a CAA document confirming that an aircraft has been reviewed and found to meet the applicable airworthiness standards at the time of issue. It’s required for all UK-registered aircraft and must be renewed, typically every twelve months. The renewal process involves a records review and physical inspection. Managing that cycle, including the documentation it generates, is part of the continuing airworthiness work we do for clients.
An STC is a CAA approval for a modification to an aircraft that already holds a Type Certificate. If the change you want to make falls outside the scope of the original TC, you need an STC. That means producing approved design data, demonstrating compliance with the relevant airworthiness standards, and obtaining CAA approval. We manage STC programmes from initial design to sign-off, covering structural analysis, avionics integration, and the full documentation package.
Yes. The two frameworks share common origins but have diverged in areas that affect certification submissions. Operators seeking approvals in both jurisdictions need to manage those differences carefully. We work with clients to identify where the requirements align and where they don’t, structuring documentation to satisfy both wherever the scope allows
