# STC ST00286WI

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Duncan Aviation, Inc, United States
- Description: Installation of an AlliedSignal Avionics CAS 66A traffic alert and collision avoidance system (TCAS I).
- Status date: June 14, 1995
- 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/B0B9DD1F8365A43A85256CC2006A7224.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST00286WI

## ADs that name it (0)

None.

## Approved models (4)

- The Cessna Aircraft Company 500 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))
- The Cessna Aircraft Company 550 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))
- The Cessna Aircraft Company 560 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))
- The Cessna Aircraft Company S550 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))

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