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Part 21-J Design Organization Approval

Aircraft Service & Repair Engineering

Delivering expertly engineered repairs and modifications to airframes, cabins, flight controls and nacelles under our CAA Part 21 Subpart J Design Organisation Approval (UK.21J.1005). Every repair issued through our P21-J DOA is immediately accepted across all EASA-registered aircraft—no added validation, no wasted time. Just proven solutions, delivered fast.

Providing CAA-approved repairs and modifications for CS 25 aircraft with a broad scope of capabilities that includes, but isn’t limited to, structural, cabin, and systems changes designed to keep your fleet airworthy, efficient and compliant.

Minor Structural Repairs

  • Approved by FAA, CAA, EASA and all major global regulatory authorities
  • Certified by FAA for Stage 1 Static Strength, Stage 2 Thresholds, and Stage 3 Repeat Inspection Intervals and Methodologies

Minor Cabin Repairs

  • Flight deck upgrades and modifications
  • Passenger and freighter cabin refurbishments
  • Enhanced cargo compartment solutions
  • Lavatory redesigns and improvements
  • Textile and upholstery restoration
  • Customised special interior installations
  • Interior lining replacements and upgrades
  • Crew rest area design and integration
  • Comprehensive placards and regulatory markings

Round-the-Clock Support

  • Fast, cost-effective solutions that resolve aircraft defects without delay
  • Maintains the highest flight safety standards with minimal disruption to operations
  • Comprehensive heavy maintenance and AOG support available both on-site and remotely

Experienced, Full-Time Staff

  • Extensive expertise across OEM, Airline, and MRO engineering disciplines
  • Specialized engineers in both composite and metallic structures, as well as cabin interiors
  • Certified Compliance Verification Engineers (CVEs) ensuring regulatory alignment and safety