What We Support

DERLink™ helps connect your project to FAA-authorized engineers across a wide range of certification disciplines. Whether you’re working on a full STC, a minor modification, or a quick-turn signoff, we help fill in the technical gaps required for FAA approval.

Our core network includes DERs and DARs experienced in:

  • Structural analysis and substantiation

  • Flammability testing and documentation

  • Oxygen system compliance

  • EWIS (Enhanced Wiring Interconnection System) reviews

  • Software, HIRF, and lightning protection assessments

  • Flight Manual Supplement (AFMS) approvals

  • Avionics interface diagrams and system integration reviews

Through our extended support network, we also offer access to specialists for:

  • Finite Element Analysis (FEA)

  • Computational Fluid Dynamics (CFD)

  • Multiphysics Analysis

  • Dynamic and Modal Analysis

  • Structural Health Monitoring (SHM)

  • Fatigue and Damage Tolerance Analysis

  • Failure Analysis

  • PMA Support

If you're unsure which disciplines your project requires, we can help clarify based on your installation and certification goals.

How it Works

  1. Submit your project details
    Share a brief overview of your aircraft, the modification or installation involved, and your timeline. No formal documents are required to begin.

  2. We connect you with the right DERs
    Based on your scope, we contact available DERs in our network whose authorizations match your needs. You’ll receive a structured summary with timelines and quotes for each required approval.

  3. You stay in control
    You retain full ownership of your STC or field approval package. DERs issue approvals directly, and we support the process behind the scenes to keep things moving without delay.

Why Use DERLink™?

Faster access to qualified FAA DERs

  • No need to search, vet, or manage engineering contacts

  • FAA-compliant deliverables with fewer delays

  • A single point of contact to help streamline the process

DERLink™ is operated by AvioDesign and was created to support certification efforts—not to take them over. We help you get the approvals you need by connecting your scope with the right technical expertise.