# STC SA3-342

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Morelli John J, United States
- Description: Metal 0.020-inch 20 24 ST 3 or 2024 ST 4 alclad aluminum.
- Status date: January 1, 1960
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-718](https://openairdocs.org/tcds/A-718), [TCDS A-787](https://openairdocs.org/tcds/A-787)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1B20DF16F46F9D9F86256CD8007952CA.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3-342

## ADs that name it (0)

None.

## Approved models (3)

- Univair Aircraft Corporation 415-C ([TCDS A-718](https://openairdocs.org/tcds/A-718))
- Univair Aircraft Corporation 415-CD ([TCDS A-718](https://openairdocs.org/tcds/A-718))
- Univair Aircraft Corporation 415D ([TCDS A-787](https://openairdocs.org/tcds/A-787))

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