# STC SA408NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Sky Services Inc, United States
- Description: Installation of a Lycoming IO-360-A1A engine and Hartzell HC-c2YK-1B/7666-2 propeller
- Applied: October 22, 1976
- Status date: February 16, 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/c2/ed/c2ed3d2faa8f2a6e92630a178bdb122877967e3d530e2bb8181da3126d4b2153
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A78BC4477C000A6286257AD400738A0B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA408NW

## 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)

- February 16, 1977: Issued, Current. [certificate](https://openairdocs.org/files/sha256/c2/ed/c2ed3d2faa8f2a6e92630a178bdb122877967e3d530e2bb8181da3126d4b2153)

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