# STC SH453NW

- 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: April 11, 1977
- Status date: December 4, 1980
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS 1H11](https://openairdocs.org/tcds/1H11)
- Certificate PDF: https://openairdocs.org/files/sha256/3b/4d/3b4d9521932a0a2634c0318bb5c4c9cd57a38a3b881a786ef536b70f7c959643
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9462915D6EFFD3CC86257A46006E2BBE.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH453NW

## ADs that name it (0)

None.

## Approved models (15)

- Sikorsky Aircraft Corporation S-58A ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58B ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58BT ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58C ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58D ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58DT ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58E ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58ET ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58F ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58FT ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58G ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58H ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58HT ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58J ([TCDS 1H11](https://openairdocs.org/tcds/1H11))
- Sikorsky Aircraft Corporation S-58JT ([TCDS 1H11](https://openairdocs.org/tcds/1H11))

## 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/sha256/3b/4d/3b4d9521932a0a2634c0318bb5c4c9cd57a38a3b881a786ef536b70f7c959643)

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