# STC SE2278CE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Petersen Aviation Inc, United States
- Description: Add the following approved fuel: unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index, (RON+MON)/2. Intermixing with aviation gasoline also approved.
- Status date: September 17, 1987
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E-228](https://openairdocs.org/tcds/E-228)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1FA03E91A66E99E985256CC2005A74B2.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE2278CE

## ADs that name it (0)

None.

## Approved models (5)

- Textron Lycoming AVCO Corporation O-435 ([TCDS E-228](https://openairdocs.org/tcds/E-228))
- Textron Lycoming AVCO Corporation O-435-A ([TCDS E-228](https://openairdocs.org/tcds/E-228))
- Textron Lycoming AVCO Corporation O-435-C ([TCDS E-228](https://openairdocs.org/tcds/E-228))
- Textron Lycoming AVCO Corporation O-435-C1 ([TCDS E-228](https://openairdocs.org/tcds/E-228))
- Textron Lycoming AVCO Corporation O-435-C2 ([TCDS E-228](https://openairdocs.org/tcds/E-228))

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