# STC SA00576NY

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Safety Devices, Inc, United States
- Description: Installation of an IMI Cash Model EX-2207-44 or EX-2207-45 differential pressure relief valve downstream of the Hartzell A1-B propeller governor.
- Status date: March 5, 1997
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-782](https://openairdocs.org/tcds/A-782)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D514F5133D955C2A85256CC1007DC99F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00576NY

## ADs that name it (0)

None.

## Approved models (3)

- Navion Aircraft Company Ltd. Navion A (L-17B) ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Navion Aircraft Company Ltd. Navion A (L-17C) ([TCDS A-782](https://openairdocs.org/tcds/A-782))
- Navion Aircraft Company Ltd. Navion B ([TCDS A-782](https://openairdocs.org/tcds/A-782))

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