# STC SA742NW - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Kenmore Air Harbor LLC, United States - Description: Installation of Hartzell HC-C2YR-1BF/F7666A-O propeller on a Lycoming O-360-C1E engine. - Applied: March 14, 1979 - Status date: April 5, 2019 - Product: Aircraft, Small Airplane - Certification basis: Part 21, Part 23 - Data sheets: [TCDS A21CE](https://openairdocs.org/tcds/A21CE) - Certificate PDF: https://openairdocs.org/files/sha256/31/42/3142115856f3d2ee095398f4271a0c8e54f3ce9a5e035c7978ceb97262f4ce68 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/01263F156A1E99C5862585CE00549425.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA742NW ## ADs that name it (0) None. ## Approved models (1) - American Champion Aircraft Corp. 8GCBC ([TCDS A21CE](https://openairdocs.org/tcds/A21CE)) ## 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 SA742NW This certificate, issued to Kenmore Air Harbor, LLC. 6321 NE 175th Street Kenmore, WA 98028 Part 23 of the Federal Aviation Regulations. Original ProductType Certificate Number: A21CE Make: Bellanca Model: 8GCBC (Seaplane) Description of the Type Design Change: Installation of Hartzell HC-C2YR-1BF/F7666A-0 propeller on a Lycoming 0-360-C1E engine in accordance with Hartzell Propeller Inc. DOA-FAA Approved Manual 115J. Limitations and Conditions: Approval of this change in type design applies basically to the above aircraft model 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. This approval is also extended to the installation in the above models with the Edo Model 689-2130 seaplane floats in accordance with STC SA741NW. 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 pro duct, the holder shall give the other person written evidence of that permission. Date of application: March 14, 1979 Date reissued: April 5, 2019 Date of issuance: April 10, 1979 Date amended: FAA FORM 8110-2 (5/14) PAGE 1 OF 3 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 Number SA742NW Kenmore Air Harbor, LLC. Issued: April 10, 1979 Reissued: April 5, 2019 Description of the Type Design Change continued: NOTES: 1. Placards of the Type Certificate Data Sheet A21CE apply. 2. The Bellanca FAA approved Airplane Flight Manual Supplement (revised October 23, 1978) as issued for the Edo 89-2000 floats apply in all respects exept for paragraph 1.2 POWERPLANT LIMITATIONS: Engines: Lycoming 0-360-C1A or C1E (Constant Speed Propeller) Engine Limits: For all operations 2700 rpm (180 hp) Fuel: 91/96 minimum grade aviation gasoline (100/130 may be used 100% of the time) Propeller: Hartzell Constant Speed HC-C2YR-1BF/F7666A Diameter Limits 76” to 72” Pitch Settings at 30” Sta., Low 12º; high 29º Caution: “AVOID 2000-2250 CONTINUOUS OPERATIONS” - END - **FAA FORM 8110-2 (5/14) PAGE 3 OF 3 PAGES** ## Every issue (2) - April 5, 2019: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/31/42/3142115856f3d2ee095398f4271a0c8e54f3ce9a5e035c7978ceb97262f4ce68) - April 10, 1979: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/ce/3e/ce3e661331e8f442eebad3b336b112455ecea4aa1aa1883b8ffd7587b38426b2) --- 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.