# STC SA1979SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Appalachian Accessories, United States
- Description: Installation of Appalachian Accessories stainless steel brake discs P/N 75-40.
- Status date: January 14, 1987
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B509FB56A1B96F8685256CC10083D3A5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1979SO

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 172L ([TCDS 3A12](https://openairdocs.org/tcds/3A12))

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