# STC SA522NW - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Kenmore Air Harbor LLC, United States - Description: Installation of float hatch kits on Edo 582-3430 floats. - Applied: September 20, 1977 - Status date: April 5, 2019 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS 3A24](https://openairdocs.org/tcds/3A24), [TCDS A4CE](https://openairdocs.org/tcds/A4CE) - Certificate PDF: https://openairdocs.org/files/sha256/e5/d2/e5d2eba171e528f36c67a40e3b4f3353a530a7c3fd7bdedf110ff7b2d1310e39 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/392A79AD826EA9DE862585CE0054880F.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA522NW ## ADs that name it (0) None. ## Approved models (21) - The Cessna Aircraft Company 185A ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - The Cessna Aircraft Company 185E ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - The Cessna Aircraft Company 206 ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company A185E ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - The Cessna Aircraft Company A185F ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) - The Cessna Aircraft Company P206 ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company P206A ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company TP206A ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company TU206A ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company TU206B ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company TU206C ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company TU206D ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company TU206E ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company TU206F ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company U206A ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company U206B ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company U206C ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company U206D ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company U206E ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company U206F ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) - The Cessna Aircraft Company U206G ([TCDS A4CE](https://openairdocs.org/tcds/A4CE)) ## 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 SA522NW This certificate, issued to Kenmore Air Harbor, LLC. 6321 NE 175th Street Kenmore, WA 98028 Part 3 of the Civil Air Regulations Original ProductType Certificate Number: *See Attached Master Eligibility List (MEL) Make: No. SA522NW for List of Approved Airplane Model: Models and Applicable Airworthiness Regulations. Description of the Type Design Change: Installation of float hatch kits on Edo 582-3430 seaplane floats in accordance with Kenmore Air Harbor, Inc. Installation Instructions No. K9011, dated September 21, 1977 and Float Hatch Installation Drawing Tree, K-250-1, dated February 24, 2005 or later Federal Aviation Administration approved revisions. Note: Placard on float hatch cover: Limitations and Conditions: Approval of this change in type design applies basically 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 interrelationship 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 and MEL No. SA522NW shall be maintained as part of the permanent records for the modified aircraf t. 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 20, 1977 Date reissued: April 5, 2019 Date of issuance: October 11, 1977 Date amended: May 20, 2005 FAA FORM 8110-2 (5/14) PAGE 1 OF 2 PAGES By direction of the Administrator (Signature) Acting Manager, Seattle ACO Branch (Title) LIMIT – 100 LBS 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/e5/d2/e5d2eba171e528f36c67a40e3b4f3353a530a7c3fd7bdedf110ff7b2d1310e39) - May 20, 2005: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/20/15/20158900cf59df3d5d22034efe30c99cb541365a0504f513b46610340b0c104c) --- From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.