# STC ST546CH-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Standard Aero, United States
- Description: Installation of an AlliedSignal Avionics, Dual GNS-XLS, Flight Management System with GPS as a primary means of navigation
- Applied: November 4, 1996
- Status date: January 5, 2012
- 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/a4/35/a4359347c86d9130342132352644fd6e3de4a35c9a2f438f27eafafe6ecce509
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A1FB6B7B73FC492A862579A60055106F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST546CH-D

## ADs that name it (0)

None.

## Approved models (17)

- Hawker Beechcraft Corporation BAe.125 Series 1000A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation BAe.125 Series 800A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation BH.125 Series 400A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation BH.125 Series 600A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation DH.125 Series 1A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation DH.125 Series 1A-522 ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation DH.125 Series 1A/R-522 ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation DH.125 Series 1A/S-522 ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation DH.125 Series 3A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation DH.125 Series 3A/R ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation DH.125 Series 3A/RA ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation DH.125 Series 400A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation HS.125 Series 600A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation HS.125 Series 700A ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation Hawker 1000 ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation Hawker 800 ([TCDS A3EU](https://openairdocs.org/tcds/A3EU))
- Hawker Beechcraft Corporation Hawker 800XP ([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)

Installation of an AlliedSignal Avionics, Dual GNS-XLS, Flight Management System with GPS as a primary means of navigation in accordance with Garrett Aviation Services, drawing list DL546, dated January 16, 1997, no revision, or later FAA approved revision.

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

2. FAA Approved Airplane Flight Manual Supplement, dated March 11, 1997, or later FAA Approved revision, is a required part of this STC.

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

Standard Aero 1200 North Airport Drive Springfield, IL 62707 A3EU Make: Raytheon Corporate Jets Inc.

Model: DH.125-1A, 1A/522, DH.125-1A/S-522, DH.125-3A, 3A/R, DH.125-1A/R-522, DH.125-3A/RA, DH.125-400A, HS.125-600A, HS.125-700A, Beechcraft HAWKER, BH.125-400A, BH.125-600A, BAe 125-800A, BAe 125-1000A, Hawker 800, Hawker 1000, Hawker 800XP

Date of application: November 04, 1996

Date of issuance: March 11, 1997 Date reissued: January 05, 2012

( Signature) Steven L. Lardinois Manager, Systems and Flight Test Branch Chicago Aircraft Certification Office

( Title)

## Every issue (1)

- January 5, 2012: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a4/35/a4359347c86d9130342132352644fd6e3de4a35c9a2f438f27eafafe6ecce509)

---
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.