# STC SH1869SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Sikorsky Aircraft, United States
- Description: Installation of King KNR-634 (copilots) VOR system.
- Status date: July 18, 1991
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H1NE](https://openairdocs.org/tcds/H1NE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D24D903711A0978885256CC2005C2F2D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH1869SO

## ADs that name it (0)

None.

## Approved models (3)

- Sikorsky Aircraft Corporation S-76A ([TCDS H1NE](https://openairdocs.org/tcds/H1NE))
- Sikorsky Aircraft Corporation S-76B ([TCDS H1NE](https://openairdocs.org/tcds/H1NE))
- Sikorsky Aircraft Corporation S-76C ([TCDS H1NE](https://openairdocs.org/tcds/H1NE))

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