# STC ST735CH-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Duncan Aviation Inc, United States
- Description: Installation of dual Universal Navigation Corporation UNS-1K flight management systems, using software (SCN) 602.x.
- Applied: November 15, 1997
- Status date: September 25, 2008
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3EU](https://openairdocs.org/tcds/A3EU)
- Certificate PDF: https://openairdocs.org/files/sha256/f6/9d/f69daba24070ca75b7e068690b6a30ccf2afc38b0e3a7b7141f7bee3094c8810
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/59F140B8BB5AE7C38625794F006AA12D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST735CH-D

## ADs that name it (0)

None.

## Approved models (1)

- Hawker Beechcraft Corporation HS.125 Series 700A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))

## 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 10 of the Civil Air Regulations.

See Type Certificate Data Sheet A3EU for complete Certification Basis.

Original Product--Type Certificate Number

Installation of dual Universal Navigation Corporation UNS-1K Flight Management Systems, using software (SCN) 602.x, in accordance with Kal-Aero Drawing List KA9711-02R, Revision A, dated December 10, 1997, or later FAA approved revision.

1. FAA approved Airplane Flight Manual Supplement, KA9711-06R, Revision , dated November 24, 1997, FAA approved December 15, 1997, or later FAA approved revision is required.

2. FAA approved Maintenance Manua l Supplement, KA9711-07R, Revision , dated November 24, 1996, FAA approved December 15, 1997, or later FAA approved revision is required.

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

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

5. 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 A3EU Make : Raytheon Aircraft Company Model : HS.125 Series 700 Date of application : November 15, 1997

Date of issuance : December 15, 1997 Date reissued : January 9, 1998, February 4, 1999 September 25, 2008 Date amended :

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 25, 2008: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f6/9d/f69daba24070ca75b7e068690b6a30ccf2afc38b0e3a7b7141f7bee3094c8810)

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