Supplemental type certificate · Onboard Systems
- Holder
- Onboard Systems · United States
- Status
- Current · Reissued
- Status date
- April 28, 1987
- Applied
- September 26, 1973
- Product
- Aircraft · Rotorcraft
- Certification basis
- Part 21
From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 6, 2025.
What it approves
Installation of electric weighing system.
What the certificate says
From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.
This certificate is a scan without a text layerOpen the PDF to read it. ADs that name this STC · 0
An AD can apply because an STC is installed, or mention one in its text.
No AD in this release names this STC Approved models · 3
| Make | Model | Data sheet |
|---|
| Eurocopter France | SA.316B Alouette III | H1IN |
| Eurocopter France | SA.319B Alouette III | H1IN |
| Eurocopter France | SE.3160 Alouette III | H1IN |