About ASE Aviation Design GmbH
Minor Change Approvals (MCA) and EOs
Our Part 21J team delivers certified Minor Change Approvals and Engineering Orders for structural, cabin, system and safety-related aircraft modifications. We provide engineering instructions, compliance documentation and installation data, including equipment replacements, bracket design, Halon phase-out solutions and avionics updates. With frequent approvals and fast turnaround, ASE ensures reliable regulatory compliance and efficient support for airlines, lessors and MROs.
Exterior and Livery Design Approvals
We provide certified livery and exterior design changes including colour schemes, placard updates and branding adaptations. Our engineering team ensures aerodynamic considerations, paint limitations and regulatory criteria are fully addressed throughout the approval process. ASE has completed numerous exterior designs for commercial and private operators. Full livery or use of graphic film designs
Support for Airlines, Lessors & MROs
We support operators and asset owners throughout ongoing Transition and CAMO projects. Our engineers coordinate directly with technical departments to provide documentation, compliance verification and tailored modification concepts. This continuous partnership ensures smooth lease transitions, high fleet availability and clear regulatory oversight.
Flight Deck Changes & Minor Engineering Tasks
We develop and certify cockpit modifications such as equipment replacements and layout optimisations. Our team produces engineering data, compliance reports and approved design files to implement flight deck changes safely and efficiently and Minor Change Approvals. These projects are part of our routine work and handled multiple times each month.