# STC SA5890NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: American Navion Society, United States
- Description: Installation of wing leading air vent system.
- Applied: February 20, 1992
- Status date: August 19, 1996
- 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/E6711C28DEEE9C0F86256E6E006696C7.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA5890NM

## 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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