Part 21 Design Services
Certified EASA Part 21 Design Services for Seamless Aircraft Modifications
Overview of Part 21 Design Services
We deliver fast, compliant and tailored aircraft modification solutions under EASA Part 21J certification. Our Part 21 Design International team specialises in minor changes, repairs and custom modification packages to support lease transitions, entry into service and ongoing operational needs.
With offices in Malta, Ireland and Singapore, we provide fully approved design solutions for leasing companies, operators, airlines and MROs worldwide.
Key Benefits
Rapid Turnaround & Global Reach
We provide minor modification approvals and material support within 24–48 hours if required, reducing downtime across Europe, Asia, and North America.
EASA Part 21J Certified
All modifications meet the latest compliance standards (EASA.21J.719), ensuring airworthiness and regulatory alignment.
Integrated Part 21G Supplier Support
We handle both design approvals and sourcing through trusted Part 21G-certified partners, simplifying modification workflows.
What Our Part 21 Design Service Includes
Interior & Exterior Modifications
- Cabin placards and decals; vinyl wraps and large-format graphics
- Seat layout changes; paint and livery customisation or de-branding
Emergency & Safety Compliance
- Fire extinguisher and safety kit relocation; new emergency equipment to EASA standards
- Halon replacement programmes for portable extinguishers and applicable systems, including approvals and embodiment
Avionics & Electrical Updates
- Mode S, SELCAL and ELT code changes
- IFE installations and electrical load analysis
End of Lease & Entry Into Service
- Rebranding, cabin restoration, regulatory markings
- Customised interior upgrades and equipment fitting
Featured Case Study
WestJet Airlines Case Study
Discover how WestJet navigated complex fleet transitions with ease—across 60+ aircraft and 6 major programmes.
Frequently Asked Questions
Q: How do I know if my modification is considered minor?
A: Our team will assess your request and confirm if it qualifies as a minor change—usually within 24 hours.
Q: How fast can you deliver approvals?
A: Placards, registrations, and approvals can often be issued within 24–48 hours for urgent cases.
Q: Do you also provide materials or just design approvals?
A: We offer full design support and material sourcing through trusted global suppliers.
Q:Are your services available worldwide?
A: Yes. Our team operates remotely with global reach across Europe, Asia, and North America.
Q: What’s the difference between Part 21J and 21G approvals?
A:Part 21J refers to design authority (e.g., minor changes, repairs), while 21G relates to manufacturing. Together, they ensure full compliance and delivery of approved modifications.