# STC SE2409CE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Petersen Aviation Inc, United States
- Description: Add the following approved fuel: unleaded automotive gas, 87 minimum antiknock index and leaded automotive gas, 88 minimum antiknock index, (RON+MON)/2.
- Status date: October 7, 1988
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS ATC 111](https://openairdocs.org/tcds/ATC%20111)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0185597D41833C8085256CC2005A74C8.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE2409CE

## ADs that name it (0)

None.

## Approved models (2)

- Textron Lycoming AVCO Corporation R-680-6 ([TCDS ATC 111](https://openairdocs.org/tcds/ATC%20111))
- Textron Lycoming AVCO Corporation R-680-B6 ([TCDS ATC 111](https://openairdocs.org/tcds/ATC%20111))

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