# STC SR00533AT

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Sikorsky Aircraft, United States
- Description: Installation of a Northern Airborne tech ramp hailer.
- Status date: July 12, 1994
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H1NE](https://openairdocs.org/tcds/H1NE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B3E8A53C3A12DE2485256CC2006225AB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR00533AT

## ADs that name it (0)

None.

## Approved models (2)

- 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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