STC SA1178CE

This certificate issued to: Dynamic Aviation Group, Inc.

1402 Airport Rd, PO Box 7 Bridgewater, VA 22812

Part 23 of the Federal Aviation Regulations.

Original Product - Type Certificate Number : A14CE Make : Beech Model : 99, 99A, 99A (FACH), A99, A99A, B99, C99, 100, A100, A100A, A100C, B100

Install wing front spar reinforcement kit per drawings and data listed by FAA approved copy of Aviadesign, Inc.

Engineering Order E.O.-B-8002.

1) This approval should not be extended to other specific airplanes of this model on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of these other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane.

2) Changes to the Airworthiness Limitations for the Model C99 and other 99 Series airplanes incorporating Beech wing spar kit 99-4023-1S are given in Aviadesign Airplane Flight Manual Supplement, FAA approved on October 28, 1991.

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

Date reissued : October 18, 1978; May 9, 1980;

February 20, 2008 Date amended : April 8, 1980; May 15, 1985;

October 28, 1991; June 21, 2000 By direction of the Administrator

Original signed by Todd Dixon

( Signature) Todd G. Dixon Associate ACO Manager, Electrical Systems & Avionics Wichita Aircraft Certification Office (Title) Date of application : September 29, 1975 Date of issuance : November 10, 1975