# STC SA402NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Aviation Inspection & Repair Inc, United States
- Description: Installation of a Prestolit Alternator and electrical system
- Applied: April 22, 1975
- Status date: January 31, 1977
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 1A6](https://openairdocs.org/tcds/1A6)
- Certificate PDF: https://openairdocs.org/files/sha256/7e/d1/7ed136f44421ac17c575549cae31e5839a97a5e933b3d32050e8661510ba2087
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E722ABB8C8EFF33D86257AD30065CC50.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA402NW

## ADs that name it (0)

None.

## Approved models (1)

- Piper Aircraft Inc. PA-22-150 ([TCDS 1A6](https://openairdocs.org/tcds/1A6))

## What the certificate says

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

## Every issue (1)

- January 31, 1977: Issued, Current. [certificate](https://openairdocs.org/files/sha256/7e/d1/7ed136f44421ac17c575549cae31e5839a97a5e933b3d32050e8661510ba2087)

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