STC SA00200SE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA00200SE This certificate issued to: Aeronautical Testing Service, Inc.

18820 59th Drive NE Arlington, WA 98223 'Part 10 of the British Civil Airworthiness Requirements.

Original Product -Type Certificate Number: A-806 Make: DeHavilland Aircraft of Canada, Ltd.

Model: DHC-2 MK. 1 Description of Type Design Change: Fabrication and Installation of vortex generators and "delta wings" on the wings in accordance with an FAA approved copy of Aeronautical Testing Service, Inc., Drawing List No.

ATS-DHC-2, Revision "A", dated June 5, 1995, or later FAA approved revision.

Limitations and Conditions: . Approval of this change in type design applies to both the standard Model DHC-2 Mk.I Landplane, Floatplane, and Skiplane configurations, and to those equipped with wing tip fuel tanks and gross weight increase in accordance with Kenmore STC No. SA4025NM.. This approval should not be extended to other aircraft of this model 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 upon the airworthiness of that aircraft. A copy of this Certificate must be maintained as part of the permanent records for the modified aircraft.

The ATS modification consists of twenty-four (24) vortex generators and four (4) "delta wings" mounted on the wings. If a "delta wing" is missing or damaged, the aircraft is not airworthy and must be repaired before flight.

Date of Application: August 18, 1994 Date Reissued:

Date of Issuance: June 15, 1995 Date Amended: October 22, 1996 FEDERAL AVIATION By dissotton of the Admisis in Cor (Signature) OMINIST RATION Acting Manager, Seattle Aircraft Certification Office (Title)