Part 21J Design & Certification

At Excellence Aero, we deliver world-class aircraft interior design and modification services, leveraging a global network and deep industry expertise. Our highly skilled engineering team specializes in delivering fully certified aircraft modification packages from custom livery and decal applications to complete cabin reconfigurations. We cover all major disciplines including aircraft interiors, avionics integration, and structural modifications.

Our end-to-end engineering solutions support aircraft transitions, refurbishments, and fleet upgrades. We offer comprehensive services such as interior component design, material selection, vendor sourcing, aircraft modification kits, and regulatory compliance support. Our agile approach ensures seamless execution across international markets, with rapid turnaround times and unmatched technical precision.

Our Core Services Include:

• Interior Components Design & Integration

• Cabin Interior Modifications, Upgrades & Refurbishments

• Aircraft End-of-Lease Transition Solutions

• Validation of Non-EASA Modifications

• AOG (Aircraft on Ground) Engineering Support

• Reverse Engineering & Structural Analysis

• Part 21J Design & Part 21G Production Organization Approvals

• STC (Supplemental Type Certificate) Development & Approval

• Feasibility Studies for Aircraft Modifications

• Component Testing & Certification

• Tailored Engineering for VIP & Commercial Aircraft Interiors

• Safety Compliance & Performance Validation