# STC SH4775NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Hillsboro Aviation Inc, United States - Description: Installation of a manual fuel start switch - Applied: May 15, 1989 - Status date: June 7, 2016 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 29 - Data sheets: [TCDS H1SW](https://openairdocs.org/tcds/H1SW) - Certificate PDF: https://openairdocs.org/files/sha256/82/db/82dbe7e01ced23a46143f9affdb533791e11794a99c797e15f1dc871d4ca4b91 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D8C35AD5458148B486257FCB0077342A.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SH4775NM ## ADs that name it (0) None. ## Approved models (1) - Bell Helicopter Textron Inc. 205A-1 ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) ## 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 SH4775NM This certificate, issued to Hillsboro Aviation, Inc. 3845 NE 30th Avenue Hillsboro, OR 97124 Part 29 of the Federal Aviation Regulations. Original ProductType Certificate Number: H1SW Make: Bell Model: 205A-1 Description of the Type Design Change: Installation of a manual fuel start switch in accordance with Heli-Conversions, Inc. Wiring Modification Instructions and Drawing No. 890801, dated August 7, 1989, or later Federal Aviation Administration (FAA) approved revision, in lieu of an automatic fuel start system. Limitations and Conditions: Approval of this change in type design applies to the above rotorcraft only. This approval should not be extended to other rotorcraft on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that rotorcraft. Rotorcraft modified in accordance with this supplemental type certificate must be operated in accordance with the applicable Rotorcraft Flight Manual Supplement indicated or later FAA-approved revisions as follows: for rotorcraft equipped with Honeywell T5317B engine, Document No. FMS-4775-17B, FAA-approved January 25, 2006; for rotorcraft equipped with Honeywell T5317A engine, Document No. FMS-4775-17A, FAA approved January 25, 2006; for rotorcraft equipped with Honeywell T5313B engine, Document No. FMS-4775-13B, FAA-approved January 25, 2006. A copy of this certificate must be maintained as part of the permanent records for the modified rotorcraft. 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: May 15, 1989 Date reissued: April 12, 2013; June 7, 2016 Date of issuance: December 8, 1989 Date amended: January 30, 2006 FAA FORM 8110-2-1 (10-69) PAGE 1 OF 2 PAGES By direction of the Administrator (Signature) Manager, Seattle Aircraft Certification Office (Title) ## Every issue (3) - June 7, 2016: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/82/db/82dbe7e01ced23a46143f9affdb533791e11794a99c797e15f1dc871d4ca4b91) - April 12, 2013: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/5a/bb/5abb0e3058095930077878dd2fd390b56b18caca208dbd9241c65ef4d9e8cbf2) - December 8, 1989: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/c3/3b/c33bef365291ac2ecf22d18542951a7c1f1420cafb534bd71b0b3bcb0f7f4f17) --- 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.