STC SA00149SE

United States of America Department of Transportation_Federal Aviation Administration Supplemental Type Certificate Number SA00149SE This certificate, issued to Aeronautical Testing Service 18820 59th Drive NE Arlington, WA 98223 Part 8 of the Civil Air Regulation.,

Original ProductType Certificate Number: A4SW Make: Ayres Model: S-2R, 600 S2D, S2R-R3S, S2R-T11, S2R-T15, S2R-R1340, S2R-G5, S2R-G6, S2R-1820, S2R-T65, S2R-T34, S2R-T45, S2R-G10, S2RHG-T34, and S2RHG-T65

Description of the Type Design Change: Installation of vortex generators and “delta wings” mounted on the wings, and strakes mounted above the left and right hand wing/fuselage junctions in accordance with an FAA approved copy of Aeronautical Testing Service Inc. Drawing List ATS-S2R, Revision D, dated January 5, 1996, or later FAA approved revision to this drawing list.

Limitations and Conditions: Approval of this change in type design applies to the above model 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 by the installer that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect on the airworthiness of that aircraft. A copy of this certificate must be maintained as part of the permanent records of the modified aircraft.

The ATS modification consists of seventy six (76) vortex generators and two (2) “delta wings” mounted on the wings, and two (2) strakes mounted above the left and right hand wing/fuselage junctions. If more than six (6) vortex generators are missing or damaged, or if a “delta wing” or strake is missing or damaged, the aircraft is not airworthy and must be repaired before flight. This modification does not provide for any airplane performance change from that given in the appropriate airplane flight manual

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: September 21, 1994 Date reissued:

Date of issuance: November 18, 1994 Date amended: June 21, 1995; May 27, 1996;

November 21, 1996, November 10, 2009

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)