# STC SA825NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Machen Inc, United States
- Description: Installationo f a Pilot's Door
- Applied: August 21, 1979
- Status date: August 23, 1979
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A20SO](https://openairdocs.org/tcds/A20SO)
- Certificate PDF: https://openairdocs.org/files/sha256/47/0f/470f4a7399f788e51a527665a3139a05fd16d15b2a3d0fa689c2e3c45d1d3a36
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A8FC8C2B5DE097BA86257A3E006ED779.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA825NW

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-31 ([TCDS A20SO](https://openairdocs.org/tcds/A20SO))

## What the certificate says

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

## Every issue (1)

- August 23, 1979: Issued, Current. [certificate](https://openairdocs.org/files/sha256/47/0f/470f4a7399f788e51a527665a3139a05fd16d15b2a3d0fa689c2e3c45d1d3a36)

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