# STC SA1766CE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Duncan Aviation, Inc, United States
- Description: Installation of Turbomach/Gemini Model T-20G-10C1 auxiliary power unit.
- Status date: December 9, 1982
- 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/58F69C1597A1E5B285256CC10083D019.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1766CE

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 550 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))

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