# STC SA571SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Memphis Turbines, Inc, United States
- Description: Installation of Pratt & Whitney PT6A-28 engines. For this installation each engine is limited to a maximum of 550 SHP.
- Status date: December 14, 1973
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A5SW](https://openairdocs.org/tcds/A5SW)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D05A966699E9B82685256CC200122AF5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA571SO

## ADs that name it (0)

None.

## Approved models (1)

- Fairchild Aircraft Corporation SA26-T ([TCDS A5SW](https://openairdocs.org/tcds/A5SW))

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