# STC SA834SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Metropolitan Propeller Repair, Inc, United States
- Description: Installation of Hamilton Standard Model 12D40/6101A-10S propeller approved under STC SP830S0 on P&W R1340-AN-1, S1H1 or S3H1 engines listed in TDS A4SW.
- Status date: April 27, 1975
- 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/809B1EB857920DF185256CC20058E73D.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA834SO

## ADs that name it (0)

None.

## Approved models (1)

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

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