# STC ST736CH-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Duncan Aviation, United States
- Description: Upgrade of a single AlliedSignal GNS-X flight management system to a single AlliedSignal CDU XLS flight management system.
- Status date: February 26, 1998
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A22CE](https://openairdocs.org/tcds/A22CE)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BEFC231056732B6F85256CC3000360EC.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST736CH-D

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 560 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))

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