# STC SP829SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Metropolitan Propeller Repair, Inc, United States
- Description: Vibration approval for single engine tractor installations only, on P & W Model P985-AN-1, -AN-3, -AN-14B, -25, -27, -39A, T1B2 and T1B3 engines. (2D 30/6101A-10S)
- Status date: February 20, 1976
- Product: Propeller
- Certification basis: Part 21
- Data sheets: [TCDS P-206](https://openairdocs.org/tcds/P-206)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/70CF6687F4E28EDD85256CC200622414.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SP829SO

## ADs that name it (0)

None.

## Approved models (1)

- Hamilton Standard Division 2D ([TCDS P-206](https://openairdocs.org/tcds/P-206))

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