# STC SA233NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Western Metal Products, United States
- Description: Installation of cargo handling equipment for three forward cargo pallet positions. (737-275C)
- Status date: April 1, 1993
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE)
- Certificate PDF: https://openairdocs.org/files/sha256/b4/d9/b4d98172da582966410dd8f53e42e2cad1b3039d5da2d841198a39f8930851b8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F082EC466F5A198185256CC200015CE0.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA233NW

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 737 ([TCDS A16WE](https://openairdocs.org/tcds/A16WE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA233NW This certificate issued to: WESTERN METAL PRODUCTS Part 25 of the Federal Aviation Regulations: (See Type Certificate Data Sheet A16WE) Original Product - Type Certificate Number: AIGWE Make: Boeing Model: 737-275C Description of Type Design Change: Installation of cargo restraint handling system for the three or five forward cargo pallet positions in accordance with FAA sealed Vinnedge & Associates Drawing List No. 201.

Limitations and Conditions: The approval of this change in type design applies basically to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. The interior arrangement, along with the required placarding, and associated cargo compartment requirements have not been evaluated and SEE BE dis haste kirate approval shall remain in ffect until sun- STC. A of this Certificate shall be maintained as part of rendered, suspended, revoked, or a termination date is otherwise established by the Administrator of the Federal Aviation Administration .

Date of Application: October 1, 1975 Date Reissued: February 16, 1984 Date of Issuance: . October 24, 1975 Date Amended: January 7, 1977; November 6, 1980 FEDERAL AVIATION Momas ( Signature ) * MINISTRATOS Afanager, Seattle Aircraft Certification Office, ANM-100S (Title)

47.

## Every issue (1)

- February 16, 1984: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/b4/d9/b4d98172da582966410dd8f53e42e2cad1b3039d5da2d841198a39f8930851b8)

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