# STC SE00590LA

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Nickson's Machine Shop Inc, United States
- Description: Installation of Nickson's cylinder barrels on Lycoming reciprocating engine models.
- Status date: May 5, 1998
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1E12](https://openairdocs.org/tcds/1E12), [TCDS E-274](https://openairdocs.org/tcds/E-274)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/197AAC34A6105A7885256CC2005A73C4.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE00590LA

## ADs that name it (0)

None.

## Approved models (13)

- Textron Lycoming AVCO Corporation AEIO-320 Series ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation AIO-320-A1A ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation AIO-320-A1B ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation AIO-320-A2A ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation AIO-320-A2B ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation AIO-320-B1B ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation AIO-320-C1B ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation IO-320-B Series ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation IO-320-C Series ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation IO-320-D Series ([TCDS 1E12](https://openairdocs.org/tcds/1E12))
- Textron Lycoming AVCO Corporation O-320-A Series ([TCDS E-274](https://openairdocs.org/tcds/E-274))
- Textron Lycoming AVCO Corporation O-320-B Series ([TCDS E-274](https://openairdocs.org/tcds/E-274))
- Textron Lycoming AVCO Corporation O-320-D Series ([TCDS E-274](https://openairdocs.org/tcds/E-274))

---
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.