Supplemental type certificate · Simplex Manufacturing Co
- Holder
- Simplex Manufacturing Co · United States
- Status
- Current · Issued
- Status date
- September 16, 1967
- Applied
- September 6, 1966
- Product
- Aircraft · Rotorcraft
- 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 Simplex thirty-two foot spray boom.
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 |
|---|
| Hiller Aviation | UH-12 Series | 6H1 |
| Hiller Aviation | UH-12 Series | 6H2 |
| Hiller Aviation | UH-12L | H1WE |
| Rogerson Hiller Corporation | UH-12E | 4H11 |
| Siam Hiller Holdings Inc. | UH-12E | 4H11 |