# STC SA384AL

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: M R Borer Aircraft Svc, United States
- Description: Installation of rudder centering device in lieu of ventral fin.
- Applied: July 16, 1970
- Status date: May 18, 2004
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A4](https://openairdocs.org/tcds/1A4)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/76AE156AF5C5ACCF86256EB70052195C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA384AL

## ADs that name it (0)

None.

## Approved models (3)

- The New Piper Aircraft Inc. PA-20S ([TCDS 1A4](https://openairdocs.org/tcds/1A4))
- The New Piper Aircraft Inc. PA-20S-115 ([TCDS 1A4](https://openairdocs.org/tcds/1A4))
- The New Piper Aircraft Inc. PA-20S-135 ([TCDS 1A4](https://openairdocs.org/tcds/1A4))

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