# STC SA2661CE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Yingling Aircraft Inc, United States
- Description: Installation of Collins EFIS-84 electronic flight instrument system.
- Applied: May 3, 1990
- Status date: February 3, 1994
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A28CE](https://openairdocs.org/tcds/A28CE)
- Certificate PDF: https://openairdocs.org/files/sha256/9a/b2/9ab2f44402a27849ad02f43023f9a5bc18e4dd9daf2044f4a79323758b45c77f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B3BF3D5AA5378FA885256CC20008C6FC.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2661CE

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 441 ([TCDS A28CE](https://openairdocs.org/tcds/A28CE))

## What the certificate says

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

## Every issue (1)

- February 3, 1994: Amended, Current. [certificate](https://openairdocs.org/files/sha256/9a/b2/9ab2f44402a27849ad02f43023f9a5bc18e4dd9daf2044f4a79323758b45c77f)

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