# STC SE00988CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Precision Engine, United States
- Description: Modify Lycoming aircraft engine Model O-235-C2C rated at maximum continuous 108 hp at 2600 rpm and 6.75:1 compression ratio to maximum continuous 115 at 2700 rpm and 8.5:1 compression ratio.
- Status date: February 8, 1999
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E-223](https://openairdocs.org/tcds/E-223)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2F7E0367850A4F3085256CC2005A73D9.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE00988CH

## ADs that name it (0)

None.

## Approved models (1)

- Textron Lycoming AVCO Corporation O-235-C2C ([TCDS E-223](https://openairdocs.org/tcds/E-223))

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