# STC SH546NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Measurement Systems Intl, United States
- Description: Installation of an electronic weighting system (for monitoring cargo and/or hoist hook weight)
- Applied: October 17, 1977
- Status date: December 4, 1980
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H6EA](https://openairdocs.org/tcds/H6EA)
- Certificate PDF: https://openairdocs.org/files/sha256/25/ce/25cecfb34abe145ab7529132983c8abe11951e53a6e3494b31fbc317130c59e2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5E26B93AF688494286257A46006E79B8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH546NW

## ADs that name it (0)

None.

## Approved models (2)

- Sikorsky Aircraft Corporation S-64E ([TCDS H6EA](https://openairdocs.org/tcds/H6EA))
- Sikorsky Aircraft Corporation S-64F ([TCDS H6EA](https://openairdocs.org/tcds/H6EA))

## What the certificate says

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

## Every issue (1)

- December 4, 1980: Amended, Current. [certificate](https://openairdocs.org/files/sha256/25/ce/25cecfb34abe145ab7529132983c8abe11951e53a6e3494b31fbc317130c59e2)

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