# STC ST09475SC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aircraft Modification and Engineering Services, In, United States
- Description: Installation of a Universal Avionics UNS-1K FMS with Internal TSO-129A GPS Sensor.
- Status date: January 19, 2000
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A31SO](https://openairdocs.org/tcds/A31SO)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EAA4DC1E1EAA3BB085256CC300035E34.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST09475SC

## 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))

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.