# STC SA2555CE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Duncan Aviation, Inc, United States
- Description: Install dual Honeywell EDZ-805 Electronic Flight Instrumentation 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/sha256/5f/20/5f20af1b8fceb20aca08942d06d97d517daba1de5f1c0474a53976e14a40ac4b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2B3D32E53A68D5CE85256CC200015FBB.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2555CE

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

## Every issue (1)

- November 8, 1989: Issued, Current. [certificate](https://openairdocs.org/files/sha256/5f/20/5f20af1b8fceb20aca08942d06d97d517daba1de5f1c0474a53976e14a40ac4b)

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