STC Certification Support from an FAA DER
Supplemental Type Certificates planned, documented and approved with fewer handoffs.
Aries Aero Systems helps operators, MROs and equipment manufacturers obtain Supplemental Type Certificates (STCs). We work on avionics, connectivity, antenna, cabin and electrical modifications for Part 23 and Part 25 aircraft.
One FAA DER with Electrical, Software and HIRF/lightning authority covers most of the data an avionics STC needs, so fewer consultants have to coordinate.
What we cover
Certification plan and basis
Project-specific certification plan, certification basis and compliance checklist agreed with the ACO or ODA.
Engineering data
Drawings, ELA, wiring, structural interfaces coordination, and instructions for continued airworthiness.
DER approvals
Electrical, software and HIRF/lightning compliance findings on FAA Form 8110-3 within authority.
Conformity and test
Ground and flight test plans, conformity support and test reports.
Regulatory basis we work to
- 14 CFR Part 21 Subpart E (Supplemental Type Certificates)
- FAA Order 8110.4C (Type Certification)
- 14 CFR Part 23 / Part 25 airworthiness standards
- AC 21-40A (Application Guide for STCs)
How an engagement runs
- 01Scope the modification and determine major/minor change and certification basis.
- 02Prepare the certification plan and compliance checklist.
- 03Produce and approve engineering data; support conformity and testing.
- 04Compile the compliance package for STC issuance.
Frequently Asked Questions
How long does an avionics STC take?
It depends on the change and the authority's workload. Early agreement on the certification basis and compliance checklist is the biggest factor we can control.
Do you work with ODAs?
Yes. We support STCs through FAA ACOs and through Organization Designation Authorization (ODA) holders.
Ready to move your program forward?
Tell us about your certification basis, aircraft program, or staffing need. We'll follow up within one business day.