# STC SA497NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Yarnell, Don C., United States
- Description: Installation of a Sensenich propeller
- Applied: June 5, 1977
- Status date: August 8, 1977
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-758](https://openairdocs.org/tcds/A-758)
- Certificate PDF: https://openairdocs.org/files/sha256/34/17/3417a23305e7c98522ca47e7e6f73e3d4274214359f41c374a04f75394dfdb15
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/18131B19C0FEBAA486257A4500538360.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA497NW

## ADs that name it (0)

None.

## Approved models (1)

- Aircraft Parts & Development Corp. A-3 ([TCDS A-758](https://openairdocs.org/tcds/A-758))

## What the certificate says

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

## Every issue (1)

- August 8, 1977: Issued, Current. [certificate](https://openairdocs.org/files/sha256/34/17/3417a23305e7c98522ca47e7e6f73e3d4274214359f41c374a04f75394dfdb15)

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