Supplemental type certificate · Aeronautical Testing Service Inc.
- Holder
- Aeronautical Testing Service Inc. · United States
- Status
- Current · Issued
- Status date
- April 19, 1996
- Applied
- March 18, 1996
- Product
- Aircraft · Small Multi-Engine
- Certification basis
- Part 21
From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 5, 2025.
What it approves
Installation of vortex generators on wings and vertical stabilizer.
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 has no text we could readOpen 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 · 2
| Make | Model | Data sheet |
|---|
| Cessna Aircraft Company | 421 | A7CE |
| Cessna Aircraft Company | 421A | A7CE |