# STC SA586EA

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Hartzell Propeller, Inc, United States
- Description: Installation of Hartzell anti- overspeed kit.
- Status date: December 19, 1972
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS 4H12](https://openairdocs.org/tcds/4H12)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0614B1F38A9101AF85256CC200122C13.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA586EA

## ADs that name it (0)

None.

## Approved models (5)

- Schweizer Aircraft Corporation 269 Series ([TCDS 4H12](https://openairdocs.org/tcds/4H12))
- Schweizer Aircraft Corporation 269A ([TCDS 4H12](https://openairdocs.org/tcds/4H12))
- Schweizer Aircraft Corporation 269A-1 ([TCDS 4H12](https://openairdocs.org/tcds/4H12))
- Schweizer Aircraft Corporation 269B ([TCDS 4H12](https://openairdocs.org/tcds/4H12))
- Schweizer Aircraft Corporation 269C ([TCDS 4H12](https://openairdocs.org/tcds/4H12))

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