# STC SA01380SE - Type: Supplemental type certificate - Status: Current, Issued - Holder: Kenmore Air Harbor Inc, United States - Description: Installation of EDO 324-7490 Amphibious floats. - Applied: January 30, 2004 - Status date: February 17, 2004 - Product: Aircraft, Large Multi-Engine - Certification basis: Part 3, Part 21 - Data sheets: [TCDS A-815](https://openairdocs.org/tcds/A-815) - Certificate PDF: https://openairdocs.org/files/sha256/e8/d7/e8d76b3c638f4f233351ca10d010bacd77cb9ea486a2f3d330fac6959234d24e - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7951673090236250862576E1005F64D2.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA01380SE ## ADs that name it (0) None. ## Approved models (1) - Bombardier Inc. DHC-3 ([TCDS A-815](https://openairdocs.org/tcds/A-815)) ## 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. United States of America Department of Transportation_Federal Aviation Administration Supplemental Type Certificate Number SA01380SE This certificate, issued to Kenmore Air EDO Floats, L.L.C. 6321 NE 175th Street Kenmore, WA 98028 Part 3 of the Civil Air Regulations. Original Product⎯Type Certificate Number: A-815 Make: Bombardier Model: DHC-3 (Otter) Description of the Type Design Change: Installation of EDO 324-7490 Amphibious floats. Manufactured in accordance with Kenmore Air EDO Floats, LLC Drawing 24483/24484, Revision C, dated September 4, 1956, or later FAA approved revision. Installed in accordance with Kenmore Air EDO Floats, LLC Drawing 23300 Revision CB, dated September 5, 1956 or later FAA approved revision. Maintained in accordance with Bristol Engineering Report 2632, Service & Maintenance data for EDO model 324 amphibious float as installed on DHC-3 Otter, Revision C, dated July 2, 1963, or later FAA approved revision. Limitations and Conditions: The weight and balance report must reflect the installation of EDO 324-7490 Amphibious floats, as specified in the Dehavilland (Bombardier) DHC-3 Flight Manual No. PSM 1-3-1. Approval of this change applies to the above model only, and should not be extended to other specific models of these airplanes 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, dated February 17, 2004, or later FAA approved revision, must 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 30, 2004 Date reissued: Date of issuance: February 17, 2004 Date amended: (Signature) Acting Manager, Seattle Aircraft Certification Office (Title) ## Every issue (1) - February 17, 2004: Issued, Current. [certificate](https://openairdocs.org/files/sha256/e8/d7/e8d76b3c638f4f233351ca10d010bacd77cb9ea486a2f3d330fac6959234d24e) --- 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.