# STC SA4111WE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Serv-Aero Engineering Inc, United States
- Description: Installation of Wright R-1820-71, -60, GR1820G-202A, 702C9GC1, 2, 3, 4, 704C9G1, 2, 3, 4 engines and and Hamilton Standard 43D50 or 33D50 constant speed propeller or Wright R1820-97 engine and Hamilton Standard 23E50 propeller. (S2R RESTRICTED CATEGORY)
- Status date: November 7, 1983
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A4SW](https://openairdocs.org/tcds/A4SW)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C5CD6D1EF5D00FDD85256CC2000C60E6.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4111WE

## ADs that name it (0)

None.

## Approved models (1)

- Ayres Corporation S2R ([TCDS A4SW](https://openairdocs.org/tcds/A4SW))

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