# STC SA251NW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Western Metal Products, United States
- Description: Installation of 3g cargo restraint equipment only on the main deck
- Applied: April 7, 1975
- Status date: February 16, 1984
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 4A26](https://openairdocs.org/tcds/4A26)
- Certificate PDF: https://openairdocs.org/files/sha256/b6/88/b6884d1d6dda396dd75c6d04f3cc4d0247c16efa3c8064af32a7aee27b3987ab
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/18520B66DE4836F386257ADA006C02B4.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA251NW

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 707-300C Series ([TCDS 4A26](https://openairdocs.org/tcds/4A26))

## What the certificate says

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

## Every issue (1)

- February 16, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b6/88/b6884d1d6dda396dd75c6d04f3cc4d0247c16efa3c8064af32a7aee27b3987ab)

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