# STC SA179NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Thunderbird Aero Enterprise, United States
- Description: Installation of flap gap seals
- Applied: August 5, 1975
- Status date: November 25, 1975
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 3A17](https://openairdocs.org/tcds/3A17)
- Certificate PDF: https://openairdocs.org/files/sha256/a4/fd/a4fd3d5c4fbe1169cc1b9657932866ee969bf408602c39a3a0f0b5b3b46bf168
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/868F58965C2482D886257AE00077B4A8.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA179NW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 175 ([TCDS 3A17](https://openairdocs.org/tcds/3A17))

## What the certificate says

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

## Every issue (1)

- November 25, 1975: Issued, Current. [certificate](https://openairdocs.org/files/sha256/a4/fd/a4fd3d5c4fbe1169cc1b9657932866ee969bf408602c39a3a0f0b5b3b46bf168)

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