# STC SR04425NY - Type: Supplemental type certificate - Status: Current, Amended - Holder: Alpine Aerotech LP, Canada - Description: Installation of the Basic Digital Flight Instrument Kit - Applied: October 28, 2019 - Status date: August 5, 2021 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 29 - Data sheets: [TCDS H1SW](https://openairdocs.org/tcds/H1SW), [TCDS H4SW](https://openairdocs.org/tcds/H4SW) - Certificate PDF: https://openairdocs.org/files/sha256/6f/a9/6fa97887d1761e4b3a660d411542fe69b7494fff2d5883f0650dc2ddff069d78 - Approved model list and other attachments: [AML_SR04425NY.pdf](https://openairdocs.org/files/sha256/e9/3b/e93bc3a2fee180cec4314e9f34ba257246b4cd8eaaf30212ad9c34093091c8fd) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C984A27DF41430018625873400505259.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR04425NY ## ADs that name it (0) None. ## Approved models (2) - Bell Textron Inc. 205A-1 ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Textron Inc. 212 ([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. IMPORT SR04425NY Alpine Aerotech LP 1260 Industrial Road West Kelowna, BC Canada V1Z 1G5 Title 14 Code of Federal Regulations *See attached FAA Approved Model List (AML) No. SR04425NY *See attached FAA approved AML *See attached FAA approved AML Bell 205A-1 and Bell 212 Configurations: 1. Installation of the Basic Digital Flight Instrument Kit must be done in accordance with Alpine Aerotech Installation Instructions referenced on AML No. SR04425NY. 2. Operation must be done in accordance with Alpine Aerotech Flight Manual Supplement referenced on AML No. SR04425NY. (Description of Type Design Change Continued on Page 3 of 3) 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) October 28, 2019 November 25, 2019 August 5, 2021 Timothy J. Hadsall Acting Manager, New York ACO Branch Compliance & Airworthiness Division Aircraft Certification Service 3 Part 29 **IMPORT SR04425NY SR04425NY 3** IMPORT SR04425NY Date Amended: August 5, 2021 Description of Type Design Change (continued): 3. Maintenance must be done in accordance with Alpine Aerotech Instructions for Continuing Airworthiness referenced on AML No. SR04425NY. 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. Airworthiness Limitations: Installation of the Basic Digital Flight Instrument Kit is limited to helicopters certified for Day/Night VFR operations only. 5. A copy of this certificate and the FAA Approved Model List (AML) No. SR04425NY, issued August 5, 2021, must be maintained as part of the permanent records for the modified aircraft. ----------END---------- 3 3 ### AML_SR04425NY.pdf FAA APPROVED MODEL LIST (AML) No. SR04425NY **ALPINE AEROTECH LP FOR** **BASIC DIGITAL FLIGHT INSTRUMENT KIT** Page 1 of 2 Original Issue Date: November 25, 2019 **ITEM MAKE MODEL CERT BASIS** **TCDS REQUIRED DOCUMENTATION AML AMEND- MENT DATE** **INSTALLATION** **INSTRUCTIONS FLIGHT MANUAL** **SUPPLEMENT** INSTRUCTIONS for CONTINUED **AIRWORTHINESS** **DEFINITION OF** **TYPE DESIGN CHANGE** 1. Bell 205A-1 ** H1SW Rev. 27 4/20/20 Installation of the Basic Digital Flight Instrument Kit must be done in accordance with Transport Canada Civil Aviation (TCCA) approved Alpine Aerotech Installation Instructions AAL- 280-075-001, Rev. NI, dated April 20, 2021, or later TCCA approved revisions. Operation must be in accordance with Alpine Aerotech Flight Manual Supplement AAL- 280-075-401, Rev. NI, TCCA approved May 31, 2021, or later TCCA approved revisions. Maintenance must be in accordance with TCCA accepted Alpine Aerotech Instructions for Continuing Airworthiness AAL- 280-075-701, Rev. NI, dated April 20, 2021, or later TCCA accepted revisions. Alpine Aerotech Master Data List AAL-280-044-001, Rev. G, TCCA approved May 31, 2021, or later TCCA approved revisions. August 5, 2021 2. Bell ** H4SW Rev. 37 1/26/21 Installation of the Basic Digital Flight Instrument Kit must be done in accordance with Alpine Aerotech Installation Instructions AAL- 280-045-001, Rev. B, TCCA approved May 31, 2021, or later TCCA approved revisions. Operation must be in accordance with Alpine Aerotech Flight Manual Supplement AAL- 280-045-401, Rev. A, TCCA approved April 13, 2021, or later TCCA approved revisions. Maintenance must be in accordance with TCCA accepted Alpine Aerotech Instructions for Continuing Airworthiness AAL- 280-045-701, Rev. D, dated March 25, 2021, or later TCCA accepted revisions. FAA APPROVED MODEL LIST (AML) No. SR04425NY **ALPINE AEROTECH LP FOR** **BASIC DIGITAL FLIGHT INSTRUMENT KIT** Page 2 of 2 **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 applicable 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 on applicable TCDS with the following additional requirements: • 14 CFR Part 29.29, 29.301, 29.303, 29.305, 29.307, 29.561, 29.601, 29.603, 29.605, 29.607, 29.609, 29.611, 29.613, 29.619, 29.625, 29.773(a), 29.777(a), 29.853(a), 29.1301, 29.1303, 29.1307(d)(e), 29.1309, 29.1321, 29.1327, 29.1331, 29.1333, 29.1351(a), 29.1353(c), 29.1355, 29.1357, 29.1359, 29.1381, 29.1431, 29.1529, 29.1541, 29.1555(a), 29.1581, 29.1583, 29.1585 at Amendment 29-0. • 14 CFR Part 29.771(a) at Amendment 29-3. • AWM 529.1301-1 at AWM 529-0. FAA Approved: Timothy J. Hadsall Acting Manager, New York ACO Branch Compliance & Airworthiness Division Aircraft Certification Service ## Every issue (2) - August 5, 2021: Amended, Current. [certificate](https://openairdocs.org/files/sha256/6f/a9/6fa97887d1761e4b3a660d411542fe69b7494fff2d5883f0650dc2ddff069d78), [AML_SR04425NY.pdf](https://openairdocs.org/files/sha256/e9/3b/e93bc3a2fee180cec4314e9f34ba257246b4cd8eaaf30212ad9c34093091c8fd) - November 25, 2019: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/0b/2a/0b2ac77c3ec5e7c59fcd49a78390b3c80316792517458e70efde6fdaf2f8fd13) --- 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.