# STC SA1221SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Windy's Aircraft Parts, United States
- Description: Fabrication and installation of wheel fairings.
- Status date: July 17, 1989
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12), [TCDS 3A13](https://openairdocs.org/tcds/3A13), [TCDS 3A19](https://openairdocs.org/tcds/3A19)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8D5BFF1248F9F50785256CC10080E03C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1221SO

## ADs that name it (0)

None.

## Approved models (3)

- The Cessna Aircraft Company 150 ([TCDS 3A19](https://openairdocs.org/tcds/3A19))
- The Cessna Aircraft Company 172 ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- The Cessna Aircraft Company 182 Series ([TCDS 3A13](https://openairdocs.org/tcds/3A13))

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