# STC SA2537CE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Textron Aviation Inc., United States
- Description: Installation of Honeywell 5-tube EDZ-803 Electronic Flight Instrument System, dual Universal UNS-1(software level 14.X) Flight Management Systems, Honeywell Primus 870 Radar System, and Honeywell LSZ-850 Lightning Sensor System.
- Applied: May 19, 1989
- Status date: March 9, 2018
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A9NM](https://openairdocs.org/tcds/A9NM)
- Certificate PDF: https://openairdocs.org/files/sha256/d1/a0/d1a0677a55415f38cbf1f7fd66ff4cc64e7ed7bdf511e9cf7ce34beec1d2c9a1
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D8E760728F98AE308625829F0055451C.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2537CE

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 650 ([TCDS A9NM](https://openairdocs.org/tcds/A9NM))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

FAA Form 8110-2 (5/14) Page 1 of

Part of the

Signature

Title SA2537CE Textron Aviation Inc.

One Cessna Boulevard Wichita, KS 67215 25 Federal Aviation Regulations.

Cessna 650 2 A9NM Installation of Honeywell 5-tube EDZ-803 Electronic Flight Instrument System, dual Universal UNS-1 (software level

14.X) Flight Management Systems, Honeywell Primus 870 Radar System, and Honeywell LSZ-850 Lightning Sensor System in accordance with Cessna Drawing List CF90007, Rev. A, dated September 5, 1989, or later FAA approved revision. FAA approved Airplane Flight Manual Supplements FM 90013 and FM 90014 dated September 6, 1989, or later FAA approved revisions, must be inserted in the Airplane Flight Manual when the airplane is modified per this STC.

This approval should not be extended to other specific airplanes of this model on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of these other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane.

March 9, 2018 May 19, 1989 September 6, 1989 Mark Fuller STC ODA administrator ODA-100129-CE

FAA Form 8110-2 (5/14) Page 2 of

To (Name and address of transferee)

From (Name and address of grantor)

## Every issue (1)

- March 9, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/d1/a0/d1a0677a55415f38cbf1f7fd66ff4cc64e7ed7bdf511e9cf7ce34beec1d2c9a1)

---
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.