# STC SH81NE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Trans Avionics Corp, United States
- Description: Installation of an automatic boarding step (retractible).
- Status date: May 24, 1982
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H1NE](https://openairdocs.org/tcds/H1NE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/609A5E4100F862BF85256CC2006222E8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH81NE

## ADs that name it (0)

None.

## Approved models (1)

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

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