# STC ST320CH

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Aviation Technologies Group, United States
- Description: Installation of landing gear harnesses and proximity switch.
- Applied: May 4, 1994
- Status date: September 6, 1995
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A31SO](https://openairdocs.org/tcds/A31SO)
- Certificate PDF: https://openairdocs.org/files/sha256/51/b1/51b178c668fceaa04238cfc8e77f9d9b237861e9cbf7d67be4756290c2bd5245
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/02297AE5663D669185256CC300035FB8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST320CH

## ADs that name it (0)

None.

## Approved models (3)

- Embraer - Empresa Brasileira de Aeronautica S.A. EMB-120 ([TCDS A31SO](https://openairdocs.org/tcds/A31SO))
- Embraer - Empresa Brasileira de Aeronautica S.A. EMB-120ER ([TCDS A31SO](https://openairdocs.org/tcds/A31SO))
- Embraer - Empresa Brasileira de Aeronautica S.A. EMB-120RT ([TCDS A31SO](https://openairdocs.org/tcds/A31SO))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- September 6, 1995: Amended, Current. [certificate](https://openairdocs.org/files/sha256/51/b1/51b178c668fceaa04238cfc8e77f9d9b237861e9cbf7d67be4756290c2bd5245)

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