# STC SA1809NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: AiResearch Aivation Service Co, United States
- Description: Installation of dual Litton LTN-72RL INS and optional installation of Vandling NDB-2 navigation data bank.
- Status date: December 8, 1982
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A46EU](https://openairdocs.org/tcds/A46EU)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3A8144D06581C59385256CC10083D0E8.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1809NM

## ADs that name it (0)

None.

## Approved models (1)

- Dassault-Aviation Mystere-Falcon 50 ([TCDS A46EU](https://openairdocs.org/tcds/A46EU))

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