# STC SR01903NY - Type: Supplemental type certificate - Status: Current, Amended - Holder: Transwest Helicopters Ltd, Canada - Description: Installation of a modified co-pilot seat. - Applied: September 25, 2003 - Status date: December 8, 2021 - Product: Aircraft, Rotorcraft - Certification basis: Part 1, Part 21, Part 29 - Data sheets: [TCDS H1SW](https://openairdocs.org/tcds/H1SW), [TCDS H4SW](https://openairdocs.org/tcds/H4SW), [TCDS H6SW](https://openairdocs.org/tcds/H6SW) - Certificate PDF: https://openairdocs.org/files/sha256/4e/cb/4ecbac7b841fe939f20736919793b0b16130ec4067f2f9b53399c818d9065af1 - Approved model list and other attachments: [SR01903NY AML_.pdf](https://openairdocs.org/files/sha256/57/32/57324aafd31d604cc0af69f7c792e2f3547fca785a99fcd18ab7f2c5969a861a) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6F907A2B18F6FFBA862587AB004A0AC1.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR01903NY ## ADs that name it (0) None. ## Approved models (12) - Bell Helicopter Textron 205A-1 ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Helicopter Textron 205B ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Helicopter Textron 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron 214B ([TCDS H6SW](https://openairdocs.org/tcds/H6SW)) - Bell Helicopter Textron 214B-1 ([TCDS H6SW](https://openairdocs.org/tcds/H6SW)) - Bell Textron Inc. 204B ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Textron Inc. 205A ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Textron Inc. 205A-1 ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Textron Inc. 205B ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Textron Inc. 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Erickson 214 Holdings LLC 214B ([TCDS H6SW](https://openairdocs.org/tcds/H6SW)) - Erickson 214 Holdings LLC 214B-1 ([TCDS H6SW](https://openairdocs.org/tcds/H6SW)) ## 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. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate This certificate issued to: IMPORT SR01903NY Transwest Helicopters Ltd. P.O. Box 1678 Oliver, British Columbia Canada V0H 1T0 Original Product *See attached FAA Approved Model List (AML) No. SR01903NY Make: Title 14 Code of Federal Regulations Type Certificate Number: *See attached FAA AML No. SR01903NY *See attached FAA AML No. SR01903NY 1. Type Design Change of modified Pilot Seats as defined in Avio dg Master Data List 1954-MD-001; Rev --, Transport Canada Civil Aviation (TCCA) approved December 11, 2019, or later TCCA approved revision and in accordance with TCCA approved or accepted documentation as referenced on AML No. SR01903NY. 1. 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. (Limitations and Conditions Continued on Page 3 of 3) September 25, 2003 Date Reissued: May 27, 2004 June 8, 2004; December 8, 2021 December 8, 2021 By Direction of the Administrator Signature: Timothy J. Hadsall Acting Manager, New York ACO Branch Compliance & Airworthiness Division Aircraft Certification Service **IMPORT SR01903NY** SR01903NY To (Name and address of transferee): IMPORT SR01903NY Date Amended/Reissued: December 8, 2021 2. The installer must determine whether this design change is compatible with previously approved modifications. 3. This STC is applicable to all serial numbers for this Make and Model. 4. A copy of this certificate and the FAA Approved Model List (AML) No. SR01903NY, amended and reissued December 8, 2021, must be maintained as part of the permanent records for the modified aircraft. Certification Basis: As referenced on AML No. SR01903NY. ----------END---------- ### SR01903NY AML_.pdf FAA APPROVED MODEL LIST (AML) No. SR01903NY TRANSWEST HELICOPTERS LTD. FOR PILOT SEATS INSTALLATION Original Issue Date: May 27, 2004 Reissue Date: June 8, 2004 Reissue Date: December 8 , 2021 **CONFIG ITEM MAKE MODEL CERT BASIS** **TCDS REQUIRED DOCUMENTATION AML** **AMENDMENT DATE** **INSTALLATION** **INSTRUCTIONS** **MANUFACTURING** **DRAWING** MAINTENANCE MANUAL Co-Pilot Seat: P/N TWH-02- 003-001 1. Bell 204B, 205A1, 205B ** H1SW Rev. 27 4/20/20 The Seat Installation must be in accordance with Report 025003- 06, Part 1, Rev. D, Transport Canada Civil Aviation (TCCA) approved December 11, 2019, or later TCCA approved revision. Manufacture must be in accordance with Drawing TWH-02-003, Rev. C, dated December 09, 2018, or later TCCA approved revision. Maintenance must be in accordance with Report 025003-07, Part 1, Rev. C, dated October 30, 2019, or later TCCA accepted revision. December 8, 2021 2. 212 H4SW Rev. 37 1/26/21 3. Erickson 214B, 214B1 ** H6SW Rev. 8 7/7/21 Pilot Seat: **P/N TWH- 02-003-102** 4. Bell 204B, 205A1, 205B ** H1SW Rev. 27 4/20/20 The Seat Installation must be in accordance with Report 025003- 06, Part 2, Rev. D, TCCA approved December 11, 2019, or later TCCA approved revision. Manufacture must be in accordance with Drawing TWH-02-003-102, Rev.--, dated December 09, 2019, or later TCCA approved revision. Maintenance must be in accordance with Report 025003-07, Part 2, Rev. C, dated October 30, 2019, or later TCCA accepted revision. 5. 212 H4SW Rev. 37 1/26/21 6. Erickson 214B, 214B1 ** H6SW Rev. 8 7/7/21 Page 1 FAA APPROVED MODEL LIST (AML) No. SR01903NY TRANSWEST HELICOPTERS LTD. FOR PILOT SEATS INSTALLATION **Certification Basis Based on title 14 Code of Federal Regulations (CFR) 21.115 and 21.101, and the FAA policy for design changes that are identified as not significant in FAA Order 8110.48, the type certification basis is as follows: a. The type certification basis as shown on Type Certificate Data Sheets (TCDS) for parts not changed or not affected by the change. b. The type certification basis for parts changed or affected by the change is TCDS in addition to: 14 CFR Part 29 at Amendment 29-11 FAA Approved: Timothy J. Hadsall Acting Manager, New York ACO Branch Compliance & Airworthiness Division Aircraft Certification Service Page 2 ## Every issue (1) - December 8, 2021: Amended, Current. [certificate](https://openairdocs.org/files/sha256/4e/cb/4ecbac7b841fe939f20736919793b0b16130ec4067f2f9b53399c818d9065af1), [SR01903NY AML_.pdf](https://openairdocs.org/files/sha256/57/32/57324aafd31d604cc0af69f7c792e2f3547fca785a99fcd18ab7f2c5969a861a) --- 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.