# STC SA3927WE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Stilwell Floyd D, United States
- Description: Installation of an AiResearch TPE331-1-101Z truboprop engine.
- Status date: September 17, 1980
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3SW](https://openairdocs.org/tcds/A3SW)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/28A821D395435F8885256CC2000C5BAA.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3927WE

## ADs that name it (0)

None.

## Approved models (1)

- Ayres Corporation S2R ([TCDS A3SW](https://openairdocs.org/tcds/A3SW))

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