# STC ST09589SC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Hawker Beechcraft Services Inc., United States
- Description: Installation of an AlliedSignal Enhanced Ground Proximity Warning System (EGPWS).
- Applied: March 24, 1999
- Status date: April 24, 2007
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A14SW](https://openairdocs.org/tcds/A14SW)
- Certificate PDF: https://openairdocs.org/files/sha256/6c/af/6caf6ca0c64d5a13260903e41e6631df317ed027497983d7e66f1aa1ef5d1999
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/59394ADD8BFC9C45862572DE006EEB17.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST09589SC

## ADs that name it (0)

None.

## Approved models (1)

- Raytheon Aircraft Company MU-300 ([TCDS A14SW](https://openairdocs.org/tcds/A14SW))

## 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.

Installation of an Allied Signal Enhanced Ground Proximity Warning System (EGPWS) in accordance with Schwartz Engineering Master Data List Document No.

1815A-000, Rev. M, dated February 14, 2000, or later FAA approved revision. FAA approved Airplane Flight Manual Supplement, Rev. IR, dated October 20, 1999, or later FAA approved revision is required.

The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Hawker Beechcraft Services, Inc.

10440 John Cape Road San Antonio, TX 78216 A14SW Make : Mitsubishi Model : MU-300 Date of application : March 24, 1999

Date of issuance : June 02, 2000

Date reissued : 1/19/01; 4/24/07

( Signature) S. Frances Cox, Manager Special Certification Office, Southwest Region

( Title)

FAA Form 8110-2-1(10-69) Page 2 of 2

## Every issue (1)

- April 24, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/6c/af/6caf6ca0c64d5a13260903e41e6631df317ed027497983d7e66f1aa1ef5d1999)

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.