# STC SA4-157

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Skybound Manufacturing Inc., United States
- Description: Removal of present trim control handle and relocating it on the left side of the fuselage about nine inches below window, and about nine inches to the rear of the instrument panel.
- Applied: December 17, 1956
- Status date: June 25, 2003
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-766](https://openairdocs.org/tcds/A-766)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/327F178F8746486A86256D8A00694812.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-157

## ADs that name it (0)

None.

## Approved models (1)

- Swift Museum Foundation Inc. GC-1B ([TCDS A-766](https://openairdocs.org/tcds/A-766))

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