# STC SA1142SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Aero Trim, Inc, United States
- Description: Installation of an adjustable trim tab on the rudder.
- Status date: November 21, 1991
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A13](https://openairdocs.org/tcds/1A13)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E978BA06CB08AFAB85256CC10080DED0.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1142SO

## ADs that name it (0)

None.

## Approved models (4)

- REVO Incorporated Colonial Lake Model 250 ([TCDS 1A13](https://openairdocs.org/tcds/1A13))
- REVO Incorporated Lake LA-4 ([TCDS 1A13](https://openairdocs.org/tcds/1A13))
- REVO Incorporated Lake LA-4-200 ([TCDS 1A13](https://openairdocs.org/tcds/1A13))
- REVO Incorporated Lake LA-4A ([TCDS 1A13](https://openairdocs.org/tcds/1A13))

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