# STC SA2554CE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Duncan Aviation, Inc, United States
- Description: Install dual Honeywell Primus II Communication and Navigation System.
- Applied: October 3, 1989
- Status date: November 8, 1989
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A27CE](https://openairdocs.org/tcds/A27CE)
- Certificate PDF: https://openairdocs.org/files/sha256/49/b5/49b58f8b82983833f40fd46d196e2ed30ff59e07377c002fa791f0c1a958f8ba
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A4456514C89AA70A85256CC200015FB8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2554CE

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 551 ([TCDS A27CE](https://openairdocs.org/tcds/A27CE))

## What the certificate says

The certificate has no text we could read; open the PDF to read it.

## Every issue (1)

- November 8, 1989: Issued, Current. [certificate](https://openairdocs.org/files/sha256/49/b5/49b58f8b82983833f40fd46d196e2ed30ff59e07377c002fa791f0c1a958f8ba)

---
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.