STC SA428NW

Number SA428NW

This certificate, issued to Kenmore Air Harbor, LLC.

6321 NE 175th Street Kenmore, WA 98028

Part 10 of the Civil Air Regulations,Equivalent to CAR 3, dated November 13, 1945; and FAR 21.29(a)(1)(ii).

Original ProductType Certificate Number: A-806 Make: DeHavilland Model: DHC-2 Mk I and Mk III

Description of the Type Design Change: Installation of water rudder steering system controlled by tail wheel steering bellcrank on float plane in accordance with Kenmore Air Harbor, Inc. Installation Instructions K -10060.

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

This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate and Kenmore Installation Instructions K-10060 shall be maintained as part of the permanent records for the modified aircraft.

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: January 27, 1977 Date reissued: April 5, 2019 Date of issuance: March 28, 1977 Date amended: March 28, 1986

FAA FORM 8110-2 (5/14) PAGE 1 OF 2 PAGES By direction of the Administrator

(Signature)

Acting Manager, Seattle ACO Branch (Title)

Transfer the ownership of Supplemental Type Certificate Number

to (Name of Transferee)

(Address of Transferee)

(Number and Street)

(City, State, and ZIP Code)

from (Name of Grantor) (Print or Type)

(Address of Grantor)

(Number and Street)

(City, State, and ZIP Code)

Signature of Grantor (In Ink):

U.S. GPO: 1987-763-289