Design Part 21G / 21J

Design Part 21G / 21J:

Working in collaboration with several different design offices within the UK, we are able to offer immediate support with an experienced design teams that offer a capability of producing a comprehensive aircraft modification package ranging from decal installation to cabin rearrangements covering multiple disciplines (Interiors, Avionics & Structures).


Ensuring the design companies provide turnkey solutions for aircraft transition events and interior reconfigurations while helping with vendor support, part sourcing, and kitting.


Privileges extend to the following prevailing requirements :

  • Interior Components design and integration
  • Cabin interior modification, upgrade, and refurbishment
  • End of Lease solutions
  • Validation of Non-EASA modifications
  • AOG Support
  • Reverse Engineering & Structural Analysis


Meaning Onset ensures that certifications are in place for any minor changes and repairs for your aircraft.


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