# STC SR04156NY - Type: Supplemental type certificate - Status: Current, Issued - Holder: Trinity Aviation Services Limited, Canada - Description: Installation, maintenance and affectivity of replacement composite driveshaft covers - Applied: February 14, 2018 - Status date: August 2, 2018 - Product: Aircraft, Rotorcraft - Certification basis: Part 21 - Data sheets: [TCDS H1SW](https://openairdocs.org/tcds/H1SW), [TCDS H4SW](https://openairdocs.org/tcds/H4SW) - Certificate PDF: https://openairdocs.org/files/sha256/91/0d/910dd677b0da9560d5afa7e6a7f2e32ed638f3cbefbe6d8760a8e015b67037a8 - Approved model list and other attachments: [SR04156NY_AML.pdf](https://openairdocs.org/files/sha256/58/8f/588f0fde06f31748718fce292c442c648504cbe01373f858aa3896bf83670d70) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0683D7A38EED23EC862582E90056FBA0.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR04156NY ## ADs that name it (0) None. ## Approved models (7) - Bell Helicopter Textron Inc. 205A ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Helicopter Textron Inc. 205A-1 ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Helicopter Textron Inc. 205B ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Helicopter Textron Inc. 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron Inc. 412 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron Inc. 412CF ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron Inc. 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. FAA Form 8110-2 (5/14) Page 1 of Part of the Signature Title SR04156NY Trinity Aviation Services Limited 201 - 19148 27th Avenue Surrey, BC Canada, V3Z 5T1 Federal Aviation Regulations. 1. Installation, maintenance and affectivity of replacement composite driveshaft covers in accordance with Transport Canada approved Trinity Aviation Services Ltd. Installation Instructions, Instructions for Continued Airworthiness and Affectivity List as listed on the Approved Model List (AML) Number SR04156NY, or later Transport Canada approved revision. 1. The installer must determine whether this design change is compatible with previously approved modifications. 2. 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. Michael Linegang Acting Manager, New York ACO Branch Compliance & Airworthiness Division *See attached FAA Approved Model List (AML) *See attached FAA Approved Model List (AML) February 14, 2018 August 2, 2018 IMPORT **See attached FAA Approved Model List (AML) No. SR04156NY for a list of approved models and applicable airworthiness regulations. FAA Form 8110-2 (5/14) Page 2 of To (Name and address of transferee) From (Name and address of grantor) 2 SR04156NY ### SR04156NY_AML.pdf FAA-Approved Model List (AML) NUMBER SR04156NY Trinity Aviation Services Limited Replacement Composite Driveshaft Covers Page 1 of 1 FAA Approved: ___________________________________ Michael Linegang Acting Manager, New York ACO Branch Compliance & Airworthiness Division Item Make Model / Series TCDS No. Cert Basis / Amendment for Alteration MDL / Inst DWG ICA MFG P/N Initial Approve Date Amended Date 1 Bell Helicopter Textron 205A 205A-1 205B H1SW 29-1 through 29-51 Trinity Aviation Services Master Drawing List, No. TAS5411-100, Revision B, Transport Canada approved 29 January, 2018 or later Transport Canada approved revisions Trinity Aviation Services Installation Instructions, No. TAS5411-101, Revision B, Transport Canada approved 29 January, 2018 or later Transport Canada approved revisions Trinity Aviation Services Instructions for Continued Airworthiness, No. TAS5411-102, Revision B, Transport Canada accepted 20 December, 2017 or later Transport Canada accepted revisions Trinity Aviation Services Affectivity List, No. AL15019-01, Issue 0, Transport Canada approved 29 January, 2018 or later Transport Canada approved revisions August 2, 2018 ----- 2 Bell Helicopter Textron 212 412 412EP 412CF H4SW 29-1 through 29-51 Trinity Aviation Services Master Drawing List, No. TAS5411-100, Revision B, Transport Canada approved 29 January, 2018 or later Transport Canada approved revisions Trinity Aviation Services Installation Instructions, No. TAS5411-101, Revision B, Transport Canada approved 29 January, 2018 or later Transport Canada approved revisions Trinity Aviation Services Instructions for Continued Airworthiness, No. TAS5411-102, Revision B, Transport Canada accepted 20 December, 2017 or later Transport Canada accepted revisions Trinity Aviation Services Affectivity List, No. AL15019-01, Issue 0, Transport Canada approved 29 January, 2018 or later Transport Canada approved revisions August 2, 2018 ----- ## Every issue (1) - August 2, 2018: Issued, Current. [certificate](https://openairdocs.org/files/sha256/91/0d/910dd677b0da9560d5afa7e6a7f2e32ed638f3cbefbe6d8760a8e015b67037a8), [SR04156NY_AML.pdf](https://openairdocs.org/files/sha256/58/8f/588f0fde06f31748718fce292c442c648504cbe01373f858aa3896bf83670d70) --- 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.