# STC SA90NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Flinchbaugh, Ronald W., United States
- Description: Installation of a Continental O-200-A engine, McCauley 1A100 MCM/6950 propeller, Cessna 150 exhaust system, Cessna 150 oil cooler, and engine colwing
- Applied: February 7, 1973
- Status date: February 26, 1974
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 1A9](https://openairdocs.org/tcds/1A9)
- Certificate PDF: https://openairdocs.org/files/sha256/e6/56/e65669de0f763b2768f95647c9abc23c729277e4248ffe9aed952bf14db641b8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AAD142D7DC6EF25986257ADA0073AC34.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA90NW

## ADs that name it (0)

None.

## Approved models (1)

- Taylorcraft 2000 LLC 19 ([TCDS 1A9](https://openairdocs.org/tcds/1A9))

## What the certificate says

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

## Every issue (1)

- February 26, 1974: Issued, Current. [certificate](https://openairdocs.org/files/sha256/e6/56/e65669de0f763b2768f95647c9abc23c729277e4248ffe9aed952bf14db641b8)

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.