# STC SA3551WE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: AiResearch Aivation Service Co, United States
- Description: Installation of either a single or dual Global GNS-500A VLF/OMEGA navigation system and optional installation of Vandling NDB-2 navigation data bank.
- Status date: November 23, 1981
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3EU](https://openairdocs.org/tcds/A3EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5E44BE54BF57DAF785256CC2000A992F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3551WE

## ADs that name it (0)

None.

## Approved models (10)

- Raytheon Aircraft Company BH.125 Series 400A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company BH.125 Series 600A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 1A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 1A-522 ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 3A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 3A/R ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 3A/RA ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company DH.125 Series 400A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company HS.125 Series 600A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Raytheon Aircraft Company HS.125 Series 700A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))

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