# STC SA4-1590

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Met-Co-Aire, United States
- Description: Riveted fuel tanks changed to welded wing and nose tank assemblies and gauge from mechanical to electric float type.
- Status date: January 1, 1960
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-787](https://openairdocs.org/tcds/A-787)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5A74393CC69AF8CF862570D00054E225.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-1590

## ADs that name it (0)

None.

## Approved models (2)

- Univair Aircraft Corporation F-1 ([TCDS A-787](https://openairdocs.org/tcds/A-787))
- Univair Aircraft Corporation F-1A ([TCDS A-787](https://openairdocs.org/tcds/A-787))

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