# STC SE4634NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Univ of Alaska Fairbanks, United States
- Description: Installation of oil filter adapter fabricated.
- Status date: October 15, 1990
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS E-274](https://openairdocs.org/tcds/E-274)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/56D00102B99234D085256CC2005A7588.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE4634NM

## ADs that name it (0)

None.

## Approved models (2)

- Textron Lycoming AVCO Corporation O-320-A1A ([TCDS E-274](https://openairdocs.org/tcds/E-274))
- Textron Lycoming AVCO Corporation O-320-A2B ([TCDS E-274](https://openairdocs.org/tcds/E-274))

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