# STC ST601CH-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Duncan Aviation Inc, United States
- Description: Installation of a single AlliedSignal GNS-XLS flight management system for enroute and terminal operation, GPS non-precision approach and GPS primary use oceanic/remote operation.
- Applied: April 21, 1997
- Status date: December 30, 2008
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A22CE](https://openairdocs.org/tcds/A22CE)
- Certificate PDF: https://openairdocs.org/files/sha256/9b/bf/9bbf485090acbbc3dab1ed18433724caecefb2aa80f16a80bbbfb1d289ab46e4
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/325B5902EC033B8B8625794F0068CCDA.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST601CH-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.

Description of Type Design Change: Installation of a single AlliedSignal GNS-XLS Flight Management System for enroute and terminal operation, GPS non-precision approach and GPS primary use oceanic/remote operation.

Data Required: (1) Kal-Aero, Inc., Master Drawing List, No. KA9704-03R, Revision A, dated May 15, 1997; (2) Kal-Aero, Inc., FAA Approved Airplane Flight Manual Supplement, No. KA9704-07R, Revision Ø, dated April 21, 1997 or later FAA approved revisions to (1) or (2).

Limitations and Conditions: Compatibility of this design change with previously approved modifications must be determined by the installer.

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 Aircraft Company Model : 560 Date of application : April 21, 1997

Date of issuance : May 19, 1997 Date reissued : December 30, 2008

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)

- December 30, 2008: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/9b/bf/9bbf485090acbbc3dab1ed18433724caecefb2aa80f16a80bbbfb1d289ab46e4)

---
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.