# STC SA3551NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Johnston Aircraft Svc, Inc, United States
- Description: Installation of Hartzell HC-C2YK-1BF/F8477D-5R propeller.
- Status date: December 10, 1986
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/33B3092B8B1A83AA85256CC2000A992D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3551NM

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))

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