# STC SA57NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Nelson Harold G, United States
- Description: Installation of Lycoming O-320 series engine, McCauley 1A170/1C172 and Sensenich M74DM propellers and associated alternator systems
- Applied: February 15, 1971
- Status date: March 6, 1974
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-797](https://openairdocs.org/tcds/A-797)
- Certificate PDF: https://openairdocs.org/files/sha256/49/71/4971a0923336dcf8a3d367d239f24f3c1119b08f0cd08962b6109ee8387c09ec
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/964C13FFE95E21F686257AD300778C53.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA57NW

## ADs that name it (0)

None.

## Approved models (1)

- FS 2002 Corp. PA-14 ([TCDS A-797](https://openairdocs.org/tcds/A-797))

## What the certificate says

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

## Every issue (1)

- March 6, 1974: Amended, Current. [certificate](https://openairdocs.org/files/sha256/49/71/4971a0923336dcf8a3d367d239f24f3c1119b08f0cd08962b6109ee8387c09ec)

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