What it approves
Add leaded and unleaded automotive gasoline, 91 minimum antiknock index (RON+MON)/2 per ASTM Specification D-439.
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 · 21
| Make | Model | Data sheet |
|---|---|---|
| Textron Lycoming AVCO Corporation | O-540-A1A | E-295 |
| Textron Lycoming AVCO Corporation | O-540-A1A5 | E-295 |
| Textron Lycoming AVCO Corporation | O-540-A1B5 | E-295 |