# STC SR00928SE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Helicopter Transport Services LLC, United States - Description: Fabrication of Kawak Aviation Technologies, Inc. Model YB02854 Auxiliary Hydraulic System - Applied: April 10, 2001 - Status date: May 18, 2016 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 29 - Data sheets: [TCDS H16NM](https://openairdocs.org/tcds/H16NM), [TCDS R00009SE](https://openairdocs.org/tcds/R00009SE), [TCDS H14NM](https://openairdocs.org/tcds/H14NM) - Certificate PDF: https://openairdocs.org/files/sha256/b4/07/b407b96ae4eaf31266bd7f34eb7f9f78f9b5bdf96d24e9ecb576d4e705bce6ac - Approved model list and other attachments: [AML_SR00928SE.pdf](https://openairdocs.org/files/sha256/46/60/46606554c2bc436d1a666e0bd17f88ec3e5d5a32a4875d27527da300580c4313) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BA65DCA658A0069886257FBC004E64AE.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR00928SE ## ADs that name it (0) None. ## Approved models (3) - Helicopter Transport Services LLC CH-54A ([TCDS H16NM](https://openairdocs.org/tcds/H16NM)) - Helicopter Transport Services LLC CH-54A ([TCDS R00009SE](https://openairdocs.org/tcds/R00009SE)) - Helicopter Transport Services LLC CH-54B ([TCDS H14NM](https://openairdocs.org/tcds/H14NM)) ## 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 Number SR00928SE This certificate, issued to Helicopter Transport Services, LLC 14497 Keil Road NE Aurora, OR 97002 Part * of the * Regulations. Original ProductType Certificate Number: *See attached Federal Aviation Administration (FAA) Make: Approved Model List (AML) SR00928SE for list of Model: approved models and applicable airworthiness regulations Description of the Type Design Change: Fabrication of Kawak Aviation Technologies, Inc. Model YB02854 Auxiliary Hydraulic System in accordance with Kawak Master Drawing List (MDL) as specified on AML SR00928SE, or later FAA-approved revision. Installation of this system in accordance with Installation Manual (IM) as specified on AML SR00928SE, or later FAA-approved revision. This modification must be maintained in accordance with Rotorcraft Maintenance Manual Supplement (MMS) as specified on AML SR00928SE, or later FAA-approved revision. Limitations and Conditions: Approval of this change in type design applies to the models listed on AML SR00928SE only. This approval should not be extended to other rotorcraft of these models on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that rotorcraft. Rotorcraft modified in accordance with this supplemental type certificate must be operated in accordance with a Kawak Rotorcraft Flight Manual Supplement (RFMS) as specified on AML SR00928SE or later FAA-approved revision. A copy of this certificate, AML SR00928SE, and copies of the MDL, IM, MMS, and RFMS must be maintained as part of the permanent records for the modified rotorcraft. 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: April 10, 2001 Date reissued: 6/28/06; 12/18/13; 5/18/16 Date of issuance: June 12, 2001 Date amended: June 26, 2009; May 15, 2012 FAA FORM 8110-2-1 (10-69) PAGE 1 OF 2 PAGES By direction of the Administrator (Signature) Manager, Seattle Aircraft Certification Office (Title) ### AML_SR00928SE.pdf FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) SA00928SE FOR INSTALLATION OF KAWAK AVIATION TECHNOLOGIES, INC. MODEL YB02854 AUXILIARY HYDRAULIC SYSTEM ISSUE DATE: May 15, 2012 Page 1 of 1 **ITEM ROTORCRAFT MAKE** **ROTORCRAFT MODEL** **ORIGINAL TC NUMBER** **CERTIFICATION** **BASIS FOR** **ALTERATION** **FAA APPROVED** **MAINTENANCE MANUAL** **SUPPLEMENT** **FAA APPROVED** **ROTORCRAFT FLIGHT** **MANUAL SUPPLEMENT** **FAA APPROVED MASTER** **DRAWING LIST** **FAA APPROVED** INSTALLATION MANUAL AML REV DATE Number Revision* Number Revision* Drawing Revision* Number Revision* 1. Helicopter Transport Services, LLC CH-54B H14NM 14 CFR Part 29 AASI-MM-628 Revision A, dated 2/13/04 AASI-FM-628 6/12/01 35300-401-MDL Revision D, dated 5/19/09 AASI-IM-628 Revision A, dated 6/5/01 5/XX/16 2. Helicopter Transport Services, LLC CH-54A H16NM 14 CFR Part 29 AASI-MM-628 Revision A, dated 2/13/04 AASI-FM-628 6/12/01 35300-401-MDL Revision D, dated 5/19/09 AASI-IM-628 Revision A, dated 6/5/01 5/XX/16 3. Helicopter Transport Services, LLC CH-54A R00009SE 14 CFR Part 29 AASI-MM-628 Revision A, dated 2/13/04 AASI-FM-628 6/12/01 35300-401-MDL Revision D, dated 5/19/09 AASI-IM-628 Revision A, dated 6/5/01 5/XX/16 * Or later FAA-approved revision FAA Approved: Manager, Seattle Aircraft Certification Office AMENDED: REISSUED: December 18, 2013; May 18, 2016 ## Every issue (6) - May 18, 2016: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b4/07/b407b96ae4eaf31266bd7f34eb7f9f78f9b5bdf96d24e9ecb576d4e705bce6ac), [AML_SR00928SE.pdf](https://openairdocs.org/files/sha256/46/60/46606554c2bc436d1a666e0bd17f88ec3e5d5a32a4875d27527da300580c4313) - December 18, 2013: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/57/29/57297ca113cedc352fc4ab4f49bb436b760bf327e9ebdc9f5687e5458f70ed10), [AML SR00928SE.pdf](https://openairdocs.org/files/sha256/11/27/1127897df4faef53b1eb9310963832706023f3960e55dc7bf6ed9e9f6d2b5188) - May 15, 2012: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/94/d6/94d6ee9c77f38ffcbd9e57f8cd8744d963ebb77fb681a937b5ebd21b4a604145), [AML SR00928SE.pdf](https://openairdocs.org/files/sha256/fe/a8/fea873c3ff350dbc0a918286e9c7f99b17de6bbe14899e1f32fd3edeed104b6b) - June 26, 2009: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/23/19/231989e56b72c03fef2067621cb4cec5b0eb788ba8d4a23db8d448f44ef81898) - June 28, 2006: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/b6/d7/b6d748ddd529e4ab54de6ce9b9e82ef9df6e80eb7216e6da0a1072e036c4f4dc) - June 12, 2001: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/d3/3b/d33bb56f1693df9c1e50f62c57a5020046793eb23fa873fd15e47d5ff3d06a15) --- 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.