# STC SA2325SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: AirTec Aircraft Services, United States
- Description: Installation of a P&W PT6A-34 engine, derated to PT6A-27 power ratings.
- Status date: April 28, 1988
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A4EA](https://openairdocs.org/tcds/A4EA)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DEE836AAE864903385256CC200015CA6.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2325SO

## ADs that name it (0)

None.

## Approved models (1)

- Alliance Aircraft Group LLC HST-550A (USAF AU-24A) ([TCDS A4EA](https://openairdocs.org/tcds/A4EA))

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