# STC SA2756CE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Duncan Aviation, Inc, United States
- Description: Installation of Bendix/King CAS-81 traffic alert and collision avoidance system and MST-67A Mode-S transponder (2 each).
- Applied: June 26, 1991
- Status date: August 22, 1991
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A22CE](https://openairdocs.org/tcds/A22CE)
- Certificate PDF: https://openairdocs.org/files/sha256/8e/14/8e144d5a07129a4c76791d895b7837fd4bd82c4a4639007c526d4f3c22c8b9b3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DDA676CEF318B55485256CC20008C894.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2756CE

## ADs that name it (0)

None.

## Approved models (3)

- 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 S550 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- August 22, 1991: Issued, Current. [certificate](https://openairdocs.org/files/sha256/8e/14/8e144d5a07129a4c76791d895b7837fd4bd82c4a4639007c526d4f3c22c8b9b3)

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