# STC SE2574CE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Petersen Aviation Inc, United States
- Description: Add unleaded automotive gasoline87 minimum antiknock index and and leaded automotive gasoline, 88 minimum antiknock index (RON+ MON)/2 per ASTM Specification D-439.
- Applied: December 22, 1989
- Status date: January 19, 1990
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E-286](https://openairdocs.org/tcds/E-286)
- Certificate PDF: https://openairdocs.org/files/sha256/d4/22/d4222389e25e87d7c4110e0614e6bad5a4d1dcba85008b5fad494bcdb47394fe
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6FAAC3FE9D12613A85256CC2005A74E3.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SE2574CE

## ADs that name it (0)

None.

## Approved models (7)

- Textron Lycoming AVCO Corporation O-360-B1A ([TCDS E-286](https://openairdocs.org/tcds/E-286))
- Textron Lycoming AVCO Corporation O-360-B1B ([TCDS E-286](https://openairdocs.org/tcds/E-286))
- Textron Lycoming AVCO Corporation O-360-B2A ([TCDS E-286](https://openairdocs.org/tcds/E-286))
- Textron Lycoming AVCO Corporation O-360-B2B ([TCDS E-286](https://openairdocs.org/tcds/E-286))
- Textron Lycoming AVCO Corporation O-360-D1A ([TCDS E-286](https://openairdocs.org/tcds/E-286))
- Textron Lycoming AVCO Corporation O-360-D2A ([TCDS E-286](https://openairdocs.org/tcds/E-286))
- Textron Lycoming AVCO Corporation O-360-D2B ([TCDS E-286](https://openairdocs.org/tcds/E-286))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- January 19, 1990: Issued, Current. [certificate](https://openairdocs.org/files/sha256/d4/22/d4222389e25e87d7c4110e0614e6bad5a4d1dcba85008b5fad494bcdb47394fe)

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