# STC SR12508IB - Type: Supplemental type certificate - Status: Current, Issued - Holder: Ascent Aerospace Ltd., Canada - Description: Installation of Personnel Carrying Devices (PCDs) for Human External Cargo (HEC) - Applied: February 2, 2026 - Status date: September 23, 2026 - Product: Aircraft, Rotorcraft - Certification basis: Part 29 - Foreign approvals: TCCA STC SH26-2 Issue 1 - Data sheets: [TCDS H13EU](https://openairdocs.org/tcds/H13EU), [TCDS H1SW](https://openairdocs.org/tcds/H1SW), [TCDS H4SW](https://openairdocs.org/tcds/H4SW) - Certificate PDF: https://openairdocs.org/files/sha256/39/47/3947d2b3527ff72917073a11f3e12b4c634d6643d025a0b6913f4f4ab9b5c4b9 - Approved model list and other attachments: [SR12508IB_AML.pdf](https://openairdocs.org/files/sha256/c7/8a/c78a2d32c3fa3a9ce825d0e238d27d79b78a6a49e3c252bcf465dd5208b82632) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198026910920260925153652.0001 - DRS record last changed: September 25, 2026 - Page: https://openairdocs.org/stc/SR12508IB ## ADs that name it (0) None. ## Approved models (3) - Airbus Helicopters Deutschland GmbH (AHD) MBB-BK 117 D-3 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU)) - Bell Helicopter Textron Inc. 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Textron Inc. 205A-1 ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) ## 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. 840 Rempel Road Parksville, British Columbia Canada V9P 2T2 Part 29 Title 14, Code of Federal Regulations *See attached FAA Approved Model List (AML) No. SR12508IB for a list of approved models and applicable airworthiness regulations. * See attached FAA AML No. SR12508IB * See attached FAA AML No. SR12508IB 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. 2. The installer must determine whether this design change is compatible with previously approved modifications. (See continuation sheet 3) 2/2/26 9/23/26 John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service 3 1. Installation of Personnel Carrying Devices (PCDs) for Human External Cargo (HEC) must be in accordance with the Modification Instructions and Master Data List as shown on FAA AML No. SR12508IB. 2. Operation must be in accordance with the Flight Manual Supplement as shown on FAA AML No. SR12508IB. 3. Maintenance must be in accordance with the Instructions for Continued Airworthiness as shown on FAA AML No. SR12508IB. 3. This STC is applicable to all serial numbers for the makes and models as shown on FAA AML No. SR12508IB. 4. Operation must be in accordance with the Limitations section of the Flight Manual Supplement as shown on FAA AML No. SR12508IB. 5. Maintenance must be in accordance with the Airworthiness Limitations section of the Instructions for Continued Airworthiness as shown on FAA AML No. SR12508IB, Transport Canada Civil Aviation (TCCA) approved July 28, 2026, or later TCCA approved revision. 6. Required Equipment: For HEC hoist operations, the rotorcraft must be listed below and equipped with the hoist and approvals specified: a) Airbus BK117 D-3 (H145): Airbus Material Kit SB117D3-85-001-2C3.1 Goodrich Hoist 44301-12-113 (90m cable) or Airbus Material Kit SB117D3-85-001-2C3.2 Goodrich Hoist 44301-12-112 (50m cable). b) Bell 205A-1: Goodrich Hoist 42325-12 installed IAW Aeronautical Accessories STC SH3190SO and Ascent STC SR04782NY modifications for hoisting. c) Bell 212: Goodrich Hoist 42325-12 installed IAW Aeronautical Accessories STC SH3189SO and Ascent STC SR04782NY modifications for hoisting. For HEC Fixed Line operations, the rotorcraft must be listed below and equipped with the Dual attachment and approvals specified: a) Airbus BK117 D-3 (H145); Airbus SB MBB-BK117-25-98-0002 External Load Systems. b) Bell 205A-1: Ascent STC SR04782NY modifications for Dual HEC Hook. c) Bell 212: Ascent STC SR04782NY modifications for Dual HEC Hook. ----------END---------- 3 3 ### SR12508IB_AML.pdf FAA APPROVED MODEL LIST (AML) No. SR12508IB ASCENT AEROSPACE LTD. for INSTALLATION OF PERSONNEL CARRYING DEVICES (PCDs) for HUMAN EXTERNAL CARGO (HEC) Page 1 of 2 Issue Date: September 23, 2026 **CONFIG MAKE MODEL CERT BASIS** **TCDS REQUIRED DOCUMENTATION INITIAL** **APPROVAL DATE** **AMENDED** **DATE INSTALLATION** **INSTRUCTIONS /** **MASTER DATA LIST** **FLIGHT MANUAL** **SUPPLEMENT** **INSTRUCTIONS FOR** **CONTINUED** **AIRWORTHINESS** 1. **AIRBUS** **HELICOPTERS** DEUTSCHLAND GmbH **MBB-BK 117 D-3** * H13EU Rev. 26 3/5/2026 Installation must be in accordance with Ascent Aerospace Ltd. (AAL) Modification Instruction 22103-MI-001; Rev B, dated June 17, 2026, or later Transport Canada Civil Aviation (TCCA) approved revision. / Definition of the Type Design Change must be in accordance with Avio dg Master Data List 22103-MD-002; Rev A, dated June 17, 2026 or later TCCA approved revision. Operation must be in accordance with AAL Flight Manual Supplement 22103-FM-002; Rev A, dated April 24, 2026, or later TCCA approved revision. Maintenance must be in accordance with AAL Instructions for Continued Airworthiness 22103-CA-001; Rev A, dated April 24, 2026, or later TCCA accepted revision. 9/23/2026 N/A 2. Bell Textron Inc. 205A-1 * H1SW Rev. 27 4/20/2020 3. Bell Textron Inc. * H4SW Rev. 42 4/2/2026 FAA APPROVED MODEL LIST (AML) No. SR12508IB ASCENT AEROSPACE LTD. for INSTALLATION OF PERSONNEL CARRYING DEVICES (PCDs) for HUMAN EXTERNAL CARGO (HEC) Page 2 of 2 * Certification Basis: Based on title 14 Code of Federal Regulations (14 CFR) § 21.115 and § 21.101, and the FAA policy for design changes that are identified as significant in FAA Order 8110.48, the type certification basis for the modified Bell Textron 205A-1, 212, and Airbus Helicopters MBB-BK 117 D-3, is as follows: a. The type certification basis for Bell 205A-1 as shown on Type Certificate Data Sheet (TCDS) H1SW, Bell 212 as shown on TCDS H4SW, and Airbus Helicopters MBB-BK 117 D-3 as shown on TCDS H13EU for parts not changed or not affected by the change. b. The type certification basis for Bell 205A-1, 212, and Airbus Helicopters MBB-BK 117 D-3 for parts changed or affected by the change is the following 14 CFR Part 29 regulations: §§ 29.29, 29.301, 29.303, 29.305, 29.307, 29.337(a), 29.601, 29.603, 29.605, 29.607, 29.609, 29.611, 29.613, 29.619, 29.623, 29.625, 29.865(a)(c)(2)(3)(5)(d)(f), 29.1529, 29.1581, 29.1583, 29.1585 as amended by Amendment 29-0 through Amendment 29-59 § 29.571 at Amendment 29-28 FAA Approved: John Yoo Manager, International Validation Branch Compliance & Airworthiness Division Aircraft Certification Service ## Every issue (1) - September 23, 2026: Issued, Current. [certificate](https://openairdocs.org/files/sha256/39/47/3947d2b3527ff72917073a11f3e12b4c634d6643d025a0b6913f4f4ab9b5c4b9), [SR12508IB_AML.pdf](https://openairdocs.org/files/sha256/c7/8a/c78a2d32c3fa3a9ce825d0e238d27d79b78a6a49e3c252bcf465dd5208b82632) --- 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.