# STC SA1789NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Kenmore Air Harbor LLC, United States - Description: Installation of domed windows in cabin doors. - Applied: January 12, 1983 - Status date: April 5, 2019 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS A-806](https://openairdocs.org/tcds/A-806) - Certificate PDF: https://openairdocs.org/files/sha256/2f/59/2f59467ee08729ea59500e8a0237c2d857267b19ed9fd641b3395d20133cefd9 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FDF84684B234F2E6862585CE0055E2E9.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA1789NM ## ADs that name it (0) None. ## Approved models (2) - de Havilland Inc. (Canada) DHC-2 (L-20A) MK.I ([TCDS A-806](https://openairdocs.org/tcds/A-806)) - de Havilland Inc. (Canada) DHC-2 (L-20A) MK.III ([TCDS A-806](https://openairdocs.org/tcds/A-806)) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. Number SA1789NM 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 II Description of the Type Design Change: Installation of domed windows in cabin doors in accordance with a FAA sealed copy of Kenmore Air Harbor, Inc. Installation Instruction K13285, dated January 12, 1983, or later FAA-approved revision, and the fabrication of the domed windows Kenmore (P/Ns K13285 LH and K13285RH) in accordance with a FAA sealed copy of Kenmore Air Harbor, Inc. Drawing No. K13285A, dated January 12, 1983, or later FAA-approved revision. 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 this model 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 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 12, 1983 Date reissued: April 5, 2019 Date of issuance: April 12, 1983 Date amended: 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 ## Every issue (2) - April 5, 2019: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/2f/59/2f59467ee08729ea59500e8a0237c2d857267b19ed9fd641b3395d20133cefd9) - March 28, 1986: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/a2/08/a20800c8b1fbb98d65391d6d797bab6aa4a7656a3cfc960c1ac7c8c213e606a9) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.