# STC ST00259NY-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Delta Engineering, United States
- Description: Update dual global Wulfsberg systems GNS-X navigation management systems to Program 23.
- Status date: November 18, 1999
- 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/8C05EC4E540D4F1285256CC2006A71E0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST00259NY-D

## ADs that name it (0)

None.

## Approved models (1)

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

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.