STC SA01555SE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA01555SE This certificate issued to: Micro AeroDynamics, Inc.

4000 Airport Road, Suite D Anacortes, WA 98221 Part 3 of the Civil Air Regulations.

Original Product Type Certificate Number: 1ACE Make: Beech Model: 19A, B19, M19A, 23, A23, A23A, A23-19, A23-24, B23, C23, A24, A24R, B24R, C24R Description of Type Design Change: Installation of vortex generators on the wings and tail surfaces in accordance with Micro AeroDynamics Drawing Package MA2204, Revision IR, dated April 7, 2005 and Installation Manual MA2205, Revision IR, dated May 4, 2005, or later FAA approved revisions.

Limitations and Conditions: Approval of this change in type design applies to the above model of aircraft only.

This approval should not be extended to other aircraft of these models on which other previously approved modifications are incorporated unless it is determined that the relationship 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 must be maintained as part of the permanent records for the modified aircraft. If more than 5 vortex generators are damaged or missing, the aircraft is not airworthy, in accordance with the Drawing Package MA2204.

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 of Application: April 7, 2005 Date Reissued:

Date of Issuance: May 25, 2005 Date Amended: June 9, 2005 FEDERAL AVIATION By direction the Administrator

- T (Signature)

OMINIST RATION Acting Manager, Seattle Aircraft Certification Office (Title)