# STC ST441CH-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Duncan Aviation Inc, United States
- Description: Installation of Universal Navigation Corporation UNS-1B+ Flight Management System, with software level (SCN) 603.x and GPS-1000 GPS Sensor with software level (SCN) 10.x, in accordance with Kal-Aero Drawing List KA9611-11R, Revision A, dated April 28, 1998, or later FAA approved revision.
- Applied: November 19, 1996
- Status date: September 16, 2008
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A22CE](https://openairdocs.org/tcds/A22CE)
- Certificate PDF: https://openairdocs.org/files/sha256/8d/78/8d78059f650cd81468bef7295ccf06c09b66a1f7c1e054dee879c19a0099a441
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E46D22A5E41DF6D786257973006854B8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST441CH-D

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 560 ([TCDS A22CE](https://openairdocs.org/tcds/A22CE))

## 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.

Part 25 of the Federal Aviation Regulations.

Original Product--Type Certificate Number

Installation of Universal Navigation Corporation UNS-1B+ Flight Management System, with software level (SCN) 603.x and GPS-1000 GPS Sensor with software level (SCN) 10.x, in accordance with Kal-Aero Drawing List KA9611-11R, Revision A, dated April 28, 1998, or later FAA approved revision.

1. FAA approved Airplane Flight Manua l Supplement, KA9611-15R, Revision A, dated April 28, 1998, FAA approved June 4, 1998, or later FAA approved revision is required.

2. Compatibility of this design change with previously appr oved modifications must be determined by the installer.

3. A copy of this Certificate and Flight Manual Supplement must be maintained as part of the permanent records of the modified aircraft.

4. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Duncan Aviation Inc.

3701 Aviation Rd.

Lincoln, NE 68524 A22CE Make : Cessna Model : 560 Date of application : November 19, 1996

Date of issuance : December 20, 1996 Date reissued : February 16, 1999, September 16, 2008

Date amended : June 4, 1998

Original signed by Steve Simpson

( Signature) Steven K. Simpson DAS Administrator, DAS-501013-CE Duncan Aviation, Lincoln, Nebraska

( Title)

FAA FORM 8110-2-1(10-69) PAGE 2 of 2 PAGES

Transfer the ownership of Supplemental Type Certificate Number

to (Name of transferee)

(Address of transferee) (Number and street)

(City, State, and Zip code)

from (Name of grantor) (Print or type)

(Address of grantor) (Number and street)

(City, State, and Zip code)

Signature of grantor (In ink):

## Every issue (1)

- September 16, 2008: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/8d/78/8d78059f650cd81468bef7295ccf06c09b66a1f7c1e054dee879c19a0099a441)

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