What it approves
Alteration of Lycoming O-235 engine to allow use of ethanol fuel.
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 · 30
| Make | Model | Data sheet |
|---|---|---|
| Textron Lycoming AVCO Corporation | O-235-C1 | E-223 |
| Textron Lycoming AVCO Corporation | O-235-C1A | E-223 |
| Textron Lycoming AVCO Corporation | O-235-C1B | E-223 |