# STC SA328NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Air Repair, United States
- Description: Installation of Fairchild Stan (R) Integral weight and balance system
- Applied: July 12, 1976
- Status date: July 28, 1976
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A28](https://openairdocs.org/tcds/4A28)
- Certificate PDF: https://openairdocs.org/files/sha256/74/69/74699764f8e4b76da2d7fa00e7091b117c4cdc7d702ba93f26d365522a009881
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5C911177074B791E85256CC2000A966D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA328NW

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 720B ([TCDS 4A28](https://openairdocs.org/tcds/4A28))

## What the certificate says

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

## Every issue (1)

- July 28, 1976: Issued, Current. [certificate](https://openairdocs.org/files/sha256/74/69/74699764f8e4b76da2d7fa00e7091b117c4cdc7d702ba93f26d365522a009881)

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