# STC SE2408CE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Petersen Aviation Inc, United States
- Description: Add the following approved fuel: unleaded automotive gas, 91 minimum antiknock index and leaded automotive gas, 91 minimum antiknock index, (RON+MON)/2.
- Status date: October 7, 1988
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E-202](https://openairdocs.org/tcds/E-202)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E21C671106387AED85256CC2005A74C7.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE2408CE

## ADs that name it (0)

None.

## Approved models (2)

- Textron Lycoming AVCO Corporation R-680E1 ([TCDS E-202](https://openairdocs.org/tcds/E-202))
- Textron Lycoming AVCO Corporation R-680E2 ([TCDS E-202](https://openairdocs.org/tcds/E-202))

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.