# STC SA3176SO

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: East Coast Avionics, Inc, United States
- Description: Program upgrade of the Global GNS-500A VLF/Omega navigation system from series 1 to 5M.
- Status date: April 2, 1992
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CB6F57C64DE18F6B85256CC2000A94D5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3176SO

## ADs that name it (0)

None.

## Approved models (1)

- Learjet Inc. Learjet 36A ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))

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