# STC SA1-39

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Boone County Aviation, Inc, United States
- Description: Recovering of wings with metal skin, .020 inch 24ST alclad, except ailerons.
- Status date: June 4, 1970
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-768](https://openairdocs.org/tcds/A-768)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A23E6D8DE273DBB585256CC10080DB29.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1-39

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 140 ([TCDS A-768](https://openairdocs.org/tcds/A-768))

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