# STC SA271NW - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Kenmore Air Harbor Inc, United States - Description: Modify air induction system to engine by removing filter assembly and reinstalling filter wire mesh screen. - Applied: February 19, 1976 - Status date: April 5, 2019 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12), [TCDS 3A24](https://openairdocs.org/tcds/3A24), [TCDS 5A6](https://openairdocs.org/tcds/5A6) - Certificate PDF: https://openairdocs.org/files/sha256/a4/a0/a4a0e776ec27d05bd0f7c9ca82ee63cf1b93572e90dc7990527a4e690d8f2638 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/95D2E44B7F610171862585CE0046E3FB.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA271NW ## ADs that name it (0) None. ## Approved models (3) - The Cessna Aircraft Company 172 ([TCDS 3A12](https://openairdocs.org/tcds/3A12)) - The Cessna Aircraft Company 180 ([TCDS 5A6](https://openairdocs.org/tcds/5A6)) - The Cessna Aircraft Company 185 ([TCDS 3A24](https://openairdocs.org/tcds/3A24)) ## 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 SA271NW 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 Federal Aviation Administration (FAA) Make: Approved Model List (AML) SA271NW for approved Model: aircraft models and applicable airworthiness regulations Description of the Type Design Change: Modify air induction system to engine by removing filter assembly and reinstalling filter wire mesh screen in accordance with Kenmore Air Harbor, Inc. Installation Instructions No. K205 . Limitations and Conditions: Approval of this change in type design applies basically to the aircraft models listed on FAA Approved MEL No. SA271NW and should not be extended to other specific models of these airplanes in which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this certificate, Kenmore Air Harbor, Inc. Installation Instructions No. K205, and MEL NO. SA271NW 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: February 19, 1976 Date reissued: April 5, 2019 Date of issuance: March 16, 1976 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/a4/a0/a4a0e776ec27d05bd0f7c9ca82ee63cf1b93572e90dc7990527a4e690d8f2638) - March 16, 1976: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/00/0a/000a0b342261f37bedffd6e7a30395dac097b97f61a66c0aa7797dcfd952de5c) --- 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.