Supplemental type certificate · R C Allen Instruments Inc
- Holder
- R C Allen Instruments Inc · United States
- Status
- Current · Reissued
- Status date
- August 1, 1991
- Applied
- October 30, 1971
- Product
- Aircraft · Small Airplane
- Certification basis
- Part 21
From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 5, 2025.
What it approves
Battery temperature sensing and over-temperature warning systems.
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 · 5
| Make | Model | Data sheet |
|---|
| Beechcraft Corporation | 65-90 | 3A20 |
| Beechcraft Corporation | 65-A90 | 3A20 |
| Beechcraft Corporation | B90 | 3A20 |
| Beechcraft Corporation | C90 | 3A20 |
| Beechcraft Corporation | E90 | 3A20 |