# STC SA2158CE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Textron Aviation Inc, United States
- Description: Installation of the Universal UNS-1 Flight Management System With Version 14.x software with heading select limited to headings which intercept the active leg between waypoints.
- Applied: January 15, 1986
- Status date: July 29, 2015
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A9NM](https://openairdocs.org/tcds/A9NM)
- Certificate PDF: https://openairdocs.org/files/sha256/c8/4c/c84c17d0fa6613c41599ec6d8800570cae900d4c58935d3f7f971bfbeddfad21
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BB19409CFD42119F86257EC000618DE6.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2158CE

## ADs that name it (0)

None.

## Approved models (1)

- Textron Aviation Inc. 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.

This certificate issued to: Textron Aviation Inc.

One Cessna Boulevard Wichita, KS 67277

Part 25 of the Federal Aviation Regulations.

Original Product - Type Certificate Number: A9NM Make: Cessna Model: 650

Installation of the Universal UNS-1 Flight Management System with version 14.x software with heading select limited to headings which intercept the active leg between waypoints in accordance with ECR EC22314, Rev. A, listed data and Universal Loran-C, P/N 1040 with E-field antenna, P/N 10401, in accordance with ECR EC21816, no rev, listed data. The FAA approved Model 650 Airplane Flight Manual Supplement 38 dated February 14, 1986 and Supplement 12, Rev. 3, dated February 14, 1986, or later approved revisions provide operating procedures for these installation changes.

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

This determination should include consideration of significant changes in weight distribution such as an increase in the fixed disposable weight in the fuselage.

Date of application: January 15, 1986 Date of issuance: February 14, 1986 Date reissued: July 29, 2015

Original signed by Grant Youngdahl (Signature)

Grant Youngdahl Program Manager Wichita Aircraft Certification Office (Title)

## Every issue (1)

- July 29, 2015: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/c8/4c/c84c17d0fa6613c41599ec6d8800570cae900d4c58935d3f7f971bfbeddfad21)

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