# STC SA185SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Air Life Associates, Inc, United States
- Description: Installation of B.F. Goodrich electric de-icers. (22D 30/6531A-15/6533-21)
- Status date: September 11, 1979
- Product: Propeller
- Certification basis: Part 21
- Data sheets: [TCDS P-736](https://openairdocs.org/tcds/P-736)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/79E36358B991FC3385256CC10083D1C5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA185SO

## ADs that name it (0)

None.

## Approved models (1)

- Hamilton Standard Division 22D ([TCDS P-736](https://openairdocs.org/tcds/P-736))

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