# STC SA1217SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Aero Trim Inc, United States
- Description: Installation of an adjustable trim tab on the left aileron.
- Applied: November 27, 1979
- Status date: November 4, 1981
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7SO](https://openairdocs.org/tcds/A7SO)
- Certificate PDF: https://openairdocs.org/files/sha256/3d/81/3d815450cc620973491ffc9ad1a27f2627fafe4f3df304ffc381993ee172ae82
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6178DFA524391F92862576CE0068690F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1217SO

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-34-200 ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))
- Piper Aircraft Inc. PA-34-200T ([TCDS A7SO](https://openairdocs.org/tcds/A7SO))

## What the certificate says

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

## Every issue (1)

- November 4, 1981: Amended, Current. [certificate](https://openairdocs.org/files/sha256/3d/81/3d815450cc620973491ffc9ad1a27f2627fafe4f3df304ffc381993ee172ae82)

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