# STC SR00207BO - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Pratt & Whitney Engine Services Inc., United States - Description: Installation of Altair Avionics Corporation Data Transmission Unit in accordance with instructions listed in attached AML DTU-T-225-3, Rev -, dated November 3, 2004 or later FAA-approved revision. - Applied: November 3, 2004 - Status date: October 22, 2007 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 27 - Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW) - Certificate PDF: https://openairdocs.org/files/sha256/bd/38/bd38dd3b059d32233e299391526d68021e68c1dae69aa5b1329b0f4b597c4e92 - Approved model list and other attachments: [SR00207BOAML.pdf](https://openairdocs.org/files/sha256/f6/03/f6039871d9ea72c07d7edeab116bf9030317d7875d75839e4528e28eb6a9937f) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ACD6116B7CD302508625738E005BA00E.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR00207BO ## ADs that name it (0) None. ## Approved models (7) - Bell Helicopter Textron (Canada) 206A ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron (Canada) 206A-1 (OH-58A) ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron (Canada) 206B ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron (Canada) 206L ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron (Canada) 206L-1 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron (Canada) 206L-3 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron (Canada) 206L-4 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) ## 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. 249 Vanderbilt Ave. Norwood, MA 02062 Part 27 of the Federal Aviation Regulations. Original Product Type Certificate Number : See attached FAA Approved Model List (AML), Document No. DTU-T-225- 3, Revision -, dated November 3, 2004, or later FAA-approved revision for the list of approved rotorcraft models and applicable airworthiness regulations. Installation of Pratt & Whitney Engine Services, Inc. Data Transmission Unit in accordance with instructions listed in attached AML DTU-T-225-3, Revision -, dated November 3, 2004, or later FAA-approved revision. 1. Instructions for Continued Airworthiness (ICA) as listed in AML DTU-T-225-3, Revision -, dated November 3, 2004, or later FAA-approved revision, shall be made available to the operator at the time of installation. 2. Compatibility of this design change with previously approved modifications must be determined by the installer. 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 : July 29, 2004 Date of issuance : November 3, 2004 Date reissued : October 22, 2007 ( Signature) Robert G. Mann Manager Boston Aircraft Certification Office ( Title) ### SR00207BOAML.pdf 63 Nahatan Street, Suite 300, Norwood, MA 02062, Phone 781-762-8600, Fax 781-762-2287 Data Transmission Unit Part 27 Non-FADEC Approved Model List STC No. SR00207BO Document Number: DTU-T-225-3 STC Number: STC No. SR00207BO FAA Approved Date: FAA Approved: Revision: - Total Pages: 5 Robert G. Mann, Manager Boston Aircraft Certification Office Federal Aviation Administration Burlington, MA Altair Avionics Data Transmission Unit DTU-T-225-3 Part 27 Approved Model List 1 Revision History Revision Number Revised Pages Description of Revisions FAA Approval Date (-) ALL Initial Release See Page 1 for Signature FAA Approved Date: Altair Avionics Proprietary - 2 - Altair Avionics Data Transmission Unit DTU-T-225-3 Part 27 Approved Model List **TABLE OF CONTENTS** 1 Revision History … 2 2 Introduction … 4 3 Approved Model List … 5 Altair Avionics Proprietary - 3 - Altair Avionics Data Transmission Unit DTU-T-225-3 Part 27 Approved Model List 2 Introduct ion This document is the FAA Approved Model List for STC No. SR00207BO for the installation of the Altair Avionics Data Transmission Unit (DTU) DTU-K-010-2 into eligible aircraft. Revisions to the AML must be coordinated through the STC holder, and requires FAA approval. **IMPORTANT NOTICE** This STC is only applicable to the 14CFR Part 27 rotorcraft, which are listed in this AML. FAA Approved Date: Altair Avionics Proprietary - 4 - Altair Avionics Data Transmission Unit DTU-T-225-3 Part 27 Approved Model List 3 Approved Model List Aircraft Make Aircraft Model(s) Type Certificate Number Certification Basis Installation Manual Instructions for Continued Airworthiness Bell Helicopter Textron 206A 206A-1 206B 206L 206L-1 206L-3 206L-4 H2SW 14 CFR Part 27: 27.301, 27.303, 27.305, 27.307, 27.561, 27.1301, 27.1309, 27.1351, 27.1357, 27.1365, 27.1529, 27.1585 DTU-G-010-1, Revision D, dated 11/01/04 or later DTU-G-010-1/C, Revision A, dated 11/01/04 or later DTU-G-260-1, Revision E, dated 11/01/04 or later DTU-G-260-1/C Revision A, dated 11/01/04 or later FAA Approved Date: Altair Avionics Proprietary - 5 - ## Every issue (2) - October 22, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/bd/38/bd38dd3b059d32233e299391526d68021e68c1dae69aa5b1329b0f4b597c4e92), [SR00207BOAML.pdf](https://openairdocs.org/files/sha256/f6/03/f6039871d9ea72c07d7edeab116bf9030317d7875d75839e4528e28eb6a9937f) - November 3, 2004: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/48/13/4813e736f85ccd3bb3d69174837d28123df220ba1a5934496d88128e335feb97), [SR00207BOAML.pdf](https://openairdocs.org/files/sha256/f6/03/f6039871d9ea72c07d7edeab116bf9030317d7875d75839e4528e28eb6a9937f) --- 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.