# STC ST438CH-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Duncan Aviation Inc, United States
- Description: Installation of AlliedSignal Mark VII Ground Proximity Warning System with Windshear Detection System in accordance with Kal-Aero, Inc. Drawing List KA9604-01R, Revision , dated April 10, 1996, FAA approved August 6, 1996 or later approved revision.
- Applied: June 21, 1996
- Status date: September 16, 2008
- Product: Aircraft, Single-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A22CE](https://openairdocs.org/tcds/A22CE)
- Certificate PDF: https://openairdocs.org/files/sha256/4e/bf/4ebf2d36732a3abdd8239a63a3fb3ace68222b6755f5fd4dc0688740ecee584a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9C213551988302278625797300677DB9.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/ST438CH-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. See Type Certificate Data Sheet A22CE for complete Certification Basis

Description of Type Design Change: Installation of AlliedSignal Mark VII Ground Proximity Warning System with Windshear Detection System in accordance with Kal-Aero, Inc. Drawing List KA9604-01R, Revision Ø, dated April 10, 1996, FAA approved August 6, 1996 or later approved revision.

1. FAA approved Airplane Flight Manual Supplement, KA9604-05R, Revision Ø, dated July 5, 1996 FAA approved August 6, 1996 or later FAA approved revision is required.

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

3. This design change is approved for Cessna model 560, serial numbers 560-0056 and on, equipped with Safe Flight Instruments Corp. Stall Warning AOA.

4. A copy of this Certificate and Flight Manual Supplement must become part of the permanent records of the modified aircraft.

Duncan Aviation Inc.

3701 Aviation Rd.

Lincoln, NE 68524 A22CE Make : Cessna Model : 560 Date of application : June 21, 1996

Date of issuance : August 6, 1996 Date reissued : September 16, 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)

- September 16, 2008: Issued, Current. [certificate](https://openairdocs.org/files/sha256/4e/bf/4ebf2d36732a3abdd8239a63a3fb3ace68222b6755f5fd4dc0688740ecee584a)

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