STC ST00158DE-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: ST00158DE-D This certificate issued to:

Learjet Inc.

One Learjet Way Wichita, Kansas 67209 Part 25 off the Federal Aviation Regulations.

Make: British Aerospace Model: BAE. 125-800A Description of Type Design Change:

Installation of Allied Signal MK-VI GPWS System in accordance with Learjet, Inc. Master Drawing List 7502131, revision N/C, dated May 15, 1995, FAA approved June 2, 1995, or later approved revision.

1. FAA approved Airplane Flight Manual Supplement, report number 02131-01, dated June 2, 1995, or later approved revision is required.

2. This approval should not be extended to aircraft of this model on which previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate and Flight Manual Supplement must be maintained as part of the permanent records for the modified aircraft.

Date of Application: April 10, 1995 Date Reissued: May 7, 2002 Date of Issuance: June 2, 1995 Date Amended:

By Direction of the Administrator DaD (Signature) David T. Grossman Program Manager Denver Aircraft Certification Office.

Northwest Mountain Region, Denver, Colorado * TOMNISTRATOR (Title)

FAA FORM 8110-2 (10-68) ificate may be transferred . in accordance with FAR 21.47.