# STC SH759NW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Onboard Systems, United States
- Description: Installation of Model 2539 weighing system
- Applied: April 5, 1979
- Status date: August 8, 1990
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW)
- Certificate PDF: https://openairdocs.org/files/sha256/63/78/63783b61f5ca220fea98db03ac6dd809e9a9a03c909a7b8689f2502234e7adf5
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AED7E861291AD9E585256CC200622244.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH759NW

## ADs that name it (0)

None.

## Approved models (2)

- Bell Helicopter Textron Canada Limited 206A ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Helicopter Textron Canada Limited 206B ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))

## What the certificate says

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

## Every issue (1)

- August 8, 1990: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/63/78/63783b61f5ca220fea98db03ac6dd809e9a9a03c909a7b8689f2502234e7adf5)

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