# STC SA4108WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Thrush Aircraft Inc., United States
- Description: Installation of second pilot s seat and dual controls or passenger/cargo compartment in accordance with Serv-Aero Engineering, Inc. FAA sealed Master Drawing List MDL 020280, dated February 2, 1980, or later FAA approved revision. UACL PT6A-34A engine is required with this installation.
FAA Approved Serv-Aero Airplane Flight Manual No. 022280 dated March 17, 1980 is required with this installation. (S2R S/N 2526R AND UP MODIFIED BY STC SA3237WE) (S2R-T34 S/N 6009-6049, S/N T34-001 AND UP)
- Applied: January 30, 1980
- Status date: July 30, 2003
- 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/94E30385F9A81E1C86256DAA006CE01C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4108WE

## ADs that name it (0)

None.

## Approved models (2)

- Ayres Corporation S-2R ([TCDS A3SW](https://openairdocs.org/tcds/A3SW))
- Ayres Corporation S2R-T34 ([TCDS A3SW](https://openairdocs.org/tcds/A3SW))

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