# STC SH437NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Measurement Systems Intl, United States
- Description: Installation of an electronic weighing system (for monitoring cargo weight)
- Applied: March 14, 1977
- Status date: August 19, 1980
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS 7H1](https://openairdocs.org/tcds/7H1), [TCDS H1IN](https://openairdocs.org/tcds/H1IN)
- Certificate PDF: https://openairdocs.org/files/sha256/a0/07/a007ba6e8e068e85ddc28bc90f15cac5896ad9c4b6b9fa5ca2cddc55218a4d52
- Approved model list and other attachments: [AML_SH437NW.pdf](https://openairdocs.org/files/sha256/20/d1/20d1d6b40381918d32970350ee3c7cea75a1c25c140e401dbb5f89a2eb5fd0f4)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4DEAEB60A333597986257A46006DF49A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH437NW

## ADs that name it (0)

None.

## Approved models (7)

- Eurocopter France SA 318C-Alouette Astazou ([TCDS 7H1](https://openairdocs.org/tcds/7H1))
- Eurocopter France SA.315B Alouette III ([TCDS H1IN](https://openairdocs.org/tcds/H1IN))
- Eurocopter France SA.316B Alouette III ([TCDS H1IN](https://openairdocs.org/tcds/H1IN))
- Eurocopter France SA.316C Alouette III ([TCDS H1IN](https://openairdocs.org/tcds/H1IN))
- Eurocopter France SA.319B Alouette III ([TCDS H1IN](https://openairdocs.org/tcds/H1IN))
- Eurocopter France SE 313B-Alouette II ([TCDS 7H1](https://openairdocs.org/tcds/7H1))
- Eurocopter France SE.3160 Alouette III ([TCDS H1IN](https://openairdocs.org/tcds/H1IN))

## What the certificate says

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

## Every issue (1)

- August 19, 1980: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a0/07/a007ba6e8e068e85ddc28bc90f15cac5896ad9c4b6b9fa5ca2cddc55218a4d52), [AML_SH437NW.pdf](https://openairdocs.org/files/sha256/20/d1/20d1d6b40381918d32970350ee3c7cea75a1c25c140e401dbb5f89a2eb5fd0f4)

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