# STC SH172WE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: CS Engineering, United States
- Description: Installation of A500 battery temperature monitor systems.
- Status date: October 16, 1974
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H1SW](https://openairdocs.org/tcds/H1SW)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C6439EB9603D3C2E85256CC2005C2EF7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH172WE

## ADs that name it (0)

None.

## Approved models (3)

- Bell Helicopter Textron 204B ([TCDS H1SW](https://openairdocs.org/tcds/H1SW))
- Bell Helicopter Textron 205A ([TCDS H1SW](https://openairdocs.org/tcds/H1SW))
- Bell Helicopter Textron 205A-1 ([TCDS H1SW](https://openairdocs.org/tcds/H1SW))

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