# STC SA550NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Alex C Fleury, United States
- Description: Installation of a stabilizer with 1/4" Anhedral (at the tipe) bow
- Applied: November 18, 1977
- Status date: December 12, 1977
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3)
- Certificate PDF: https://openairdocs.org/files/sha256/2c/24/2c24ede26f02aacb26f814fc2f37e1c5af650bfebbac6d6d68054c44b8eb045b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C6205F5029B7F35F86257A450067551C.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA550NW

## ADs that name it (0)

None.

## Approved models (1)

- Mooney Aviation Company Inc M20A ([TCDS 2A3](https://openairdocs.org/tcds/2A3))

## What the certificate says

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

## Every issue (1)

- December 12, 1977: Issued, Current. [certificate](https://openairdocs.org/files/sha256/2c/24/2c24ede26f02aacb26f814fc2f37e1c5af650bfebbac6d6d68054c44b8eb045b)

---
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.