# STC SR09373RC-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Bell Helicopter Textron Inc., United States - Description: Bell Helicopter Vibration Monitor (BHVM) System. - Applied: February 16, 2004 - Status date: February 1, 2011 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 29 - Data sheets: [TCDS H4SW](https://openairdocs.org/tcds/H4SW) - Certificate PDF: https://openairdocs.org/files/sha256/6b/70/6b703a361c952ab383a4263c225e239253fc88e77f5f46b91768888e0c790d54 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1BDAEDF28B183DA486257C43006A6CAD.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR09373RC-D ## ADs that name it (0) None. ## Approved models (2) - Bell Helicopter Textron 412 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron 412EP ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) ## 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. N umber SR09373RC-D This certificate issued to Part 29 of the Federal Aviation R egulations. Original Product -- Type Certificate N umber : Bell Helicopter Vibration Monitor (BHVM) System in accordance with Aeronautical Accessories, Inc. Drawing List, Report No. AA-04066, Revision I, dated June 10, 2005, or later DAS approved revisions; and installation per Report No. AA-04048, Revision D, dated May 26, 2005, or later DAS approved revisions. Instructions for Continued Airworthiness, Aeronautical Accessories, Inc. Report AA-04049, No Revision, dated June 14, 2005, or later FAA accepted revisions and Rotorcraft Flight Manual Supplement, Aeronautical Accessories, Inc. Report AA-04118, No Revision, dated June 22, 2005, or later DAS approved revisions are required. The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission. This certif icate and the supporting data which is the basis for approval shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the A dministrator of the F ederal A viation A dministration. Bell Helicopter Textron, Inc. 441 Industrial Park Rd. Piney Flats, TN 37686 H4SW M ake : Bell Helicopter Textron M odel : 412, 412EP Date of application : February 16, 2004 Date of issuance : June 22, 2005 Date reissued : June 29, 2005; February 01, 2011 B y direction of the A dministrator (Signature) James A. Richmond, Acting Manager, Rotorcraft Certification Office, Southwest Region (Title) FAA Form 8110-2-1(10-69) Page 2 of 2 Number SR09373RC-D Date of Issuance: June 22, 2005 ## Every issue (2) - February 1, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/6b/70/6b703a361c952ab383a4263c225e239253fc88e77f5f46b91768888e0c790d54) - June 29, 2005: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/05/be/05bebca5b51006a587c2d9ad683aba6ec43a2cc3c8109c756e415510da9ba66e) --- 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.