# STC SH740NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Measurement Systems Intl, United States
- Description: Installation of model 150-21 electronic weighing system.
- Applied: February 12, 1978
- Status date: May 13, 1981
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H9EU](https://openairdocs.org/tcds/H9EU)
- Certificate PDF: https://openairdocs.org/files/sha256/7b/ff/7bffc163adaf577c84aec6ab3cd603b83a70e1c0d63ff5e622c7d0f638b7f5a4
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/50D5D603A09BF11886257A3F006EA4BD.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH740NW

## ADs that name it (0)

None.

## Approved models (4)

- Eurocopter France AS-350B ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Eurocopter France AS-350C ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Eurocopter France AS-350D ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))
- Eurocopter France AS-350D1 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU))

## 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: SH740NW This certificate issued to: Measurement Systems International, Inc.

Certifies that the change in the type design for the fellowing product with the limitatic ns and conditions thenfer as specified hereon meets the airerthiness requiremente if Pari 21. 29c the Federal Aviation Fregulations.

Original Product - Type Pertificate Number: HOEU Make: Aerospatiale Model: AS-350C, AS-350D, AS-350D1, and AS-350B Description of Type Design Change: Installation of a model 150-21 electronic weighing system in accordance with Measurement Systems Installation Drawings D00426 or D00478.

Limitations and Conditions: Approval of this change in type design applies to the above model helicopter only. This approval should not be extended to helicopters of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that helicopter. A copy of this Certificate and FAA Approved Rotorcraft Flight Manual Supplement, amended May 13, 1981, shall be maintained as part of the permanent records for the modified helicopter.

Date of Application: February 12, 1978 Tute vissued:

Jute fissuance: April 6, 1979 Date Amended: August 19, 1980; May 13, 1981 FEDERAL AVIATION harho Eschaseder ection of the SIde frist Signature TO MINISTRATIO Acting Chief, Seattle Area Aircraft Certification Office (Title)

## Every issue (1)

- May 13, 1981: Amended, Current. [certificate](https://openairdocs.org/files/sha256/7b/ff/7bffc163adaf577c84aec6ab3cd603b83a70e1c0d63ff5e622c7d0f638b7f5a4)

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