STC SA00072DE-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA00072DE-D This certificate issued to:

Learjet Inc.

One Learjet Way Wichita, Kansas 67209 Part 23 of the Federal Aviation Regulations.

Original Product --Type Certificate Number: A21EU Make: British Aerospace Model: 3101 Description of Type Design Change:

Installation of Radio Altimeter System in accordance with AMR Combs, Inc. Certification Drawing List 7500945, revision N/C, dated January 7, 1994, FAA approved January 11, 1994, or later approved revision.

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.

Date of Application: December 16, 1993 Date Reissued: January 4, 1995 May 7, 2002 Date of Issuance: January 11, 1994 Date Amended:

By Direction of the Administrator Da) T. Coron (Signature) David T. Grossman Program Manager TOMINSTRATO Denver Aircraft Certification Office. Northwest Mountain Region, Denver, Colorado (Title)

47.