STC SA00140DE-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA00140DE-D This certificate issued to:

Learjet Inc.

One Learjet Way Wichita, Kansas 67209 Part 23 of the Federal Aviation Regulations. Plus Special Condition No. 25-ANM-92, dated 11/16/94.

Original Product --Type Certificate Number: A27CE Make: Cessna Aircraft Model: 501 Description of Type Design Change:

Installation of two tube Bendix/King EFS-50 Electronic Flight Instrument System in accordance with AMR Combs, Inc. Master Drawing List 7501473, revision N/C, dated December 19, 1994, FAA Approved December 21, 1994, or later approved revision.

1. FAA approved Airplane Flight Manual Supplement 01473-001, dated December 21, 1994, or later approved revision is required.

2. The equipment and wiring installed by this STC are in compliance with FAA High Intensity Radiated Fields (HIRF) protection requirement for systems which perform critical functions. To maintain the HIRF integrity, repairs and/or future interfaces to the wiring installation must be in accordance with the Continued Airworthiness procedures as outlined in AMR Combs, Inc. Report 01473-003, dated 12/20/94 or later approved revision.

Date of Application: September 28, 1994 Date Reissued: January 4, 1995 May 7, 2002 Date of Issuance: December 21, 1994 Date Amended:

FEDERAL AVIATION By Direction of the Administrator (Signature) David T. Grossman Program Manager TOMINSTRATIO Denver Aircraft Certification Office. Northwest Mountain Region, Denver, Colorado (Title) Any alteration of this cert by a fine of not exceeding $1,000, or imprisonment not exce ling 3 years, or both.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA00140DE-D

3. 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.

4. A copy of this Certificate, Continuation Sheet, Instructions for Continued Airworthiness and FAA Flight Manual Supplement dated December 21, 1994, or later approved revision, must be maintained as part of the permanent records for the modified aircraft.

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FAA FOR 8110-2 (10-68)