# STC SR00931SE - Type: Supplemental type certificate - Status: Current, Amended - Holder: Simplex Manufacturing Company, United States - Description: Fabrication of Simplex Model 314 Fire Attack System - Applied: November 17, 2001 - Status date: May 15, 2012 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 29 - Data sheets: [TCDS R00009SE](https://openairdocs.org/tcds/R00009SE), [TCDS H14NM](https://openairdocs.org/tcds/H14NM), [TCDS H16NM](https://openairdocs.org/tcds/H16NM), [TCDS H18NM](https://openairdocs.org/tcds/H18NM) - Certificate PDF: https://openairdocs.org/files/sha256/a2/3c/a23c712e9c234dfc2f85ee2dfe086928eb920b4b2a7a7b9f6cbca1d5ddcd1b0f - Approved model list and other attachments: [AML SR00931SE.pdf](https://openairdocs.org/files/sha256/f2/31/f231a3591c6a3ab6fbf9d50fd8ef5499c58b2b13f854e0b537ff6d6eed488c6c) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DCAF251415BCE52186257A00006C859A.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SR00931SE ## ADs that name it (0) None. ## Approved models (4) - Evergreen Helicopters Inc. CH-54A ([TCDS R00009SE](https://openairdocs.org/tcds/R00009SE)) - Helicopter Transport Services Inc. CH-54B ([TCDS H14NM](https://openairdocs.org/tcds/H14NM)) - Helicopter Transport Services LLC CH-54A ([TCDS H16NM](https://openairdocs.org/tcds/H16NM)) - Siller Helicopters LLC CH-54A ([TCDS H18NM](https://openairdocs.org/tcds/H18NM)) ## 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 SR00931SE This certificate, issued to Simplex Manufacturing Company 13340 NE Whitaker Way Portland, OR 97230 Part * of the * Regulations. Original Product⎯Type Certificate Number: *See attached FAA Approved Model List (AML) Make: No. SR00931SE for list of approved airplane models Model: and applicable airworthiness regulations. Description of the Type Design Change: Fabrication of Simplex Model 314 Fire Attack System in accordance with Simplex Master Drawing List specified on AML No. SR00931SE, or later FAA approved revision; and installation of this system in accordance with Simplex Installation document specified on AML No. SR00931SE, or later FAA approved revision. This modification must be maintained in accordance with Simplex Maintenance Manual document specified on AML No. SR00931SE, or later FAA approved revision. Limitations and Conditions: Approval of this change in type design applies to Helicopter Transport Services Model CH54B rotorcraft listed above only, equipped with an FAA approved auxiliary hydraulic system. 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 helicopter. Rotorcraft modified in accordance with this STC must be operated in accordance with an FAA approved copy of the Rotorcraft Flight Manual Supplement (RFMS) specified on AML No. SR00931SE, or later FAA approved revision. A copy of this Certificate, FAA approved RFMS, and Maintenance Manual must be maintained as part of the permanent records of the modified helicopter. 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. This certificate and the supporting data which is the ba sis for approval shall remain in effect until surrendered, suspended, revoked, or a termination date is otherwise established by the Administrator of the Federal Aviation Administration. Date of application: November 17, 2001 Date reissued: Date of issuance: June 15, 2001 Date amended: November 20, 2003 (Signature) Acting Manager, Seattle Aircraft Certification Office (Title) ### AML SR00931SE.pdf FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) SR00931SE FOR INSTALLATION OF THE SIMPLEX MODEL 314 FIRE ATTACK SYSTEM ISSUE DATE: June 15, 2003 Page 1 of 1 **ITEM AIRCRAFT MAKE** **AIRCRAFT MODEL TYPE** **CERTIFICATE NUMBER** **CERTIFICATION** **BASIS FOR** **ALTERATION** **FAA SEALED** DRAWING LIST* INSTALLATION DOCUMENT* MAINTENANCE MANUAL* RFMS SUPPLEMENT* AML **REVISION DATE** 1. Helicopter Transport Services, Inc. CH-54B H14NM 14 CFR Part 29 MDL 314 Revision E 6/25/03 314-102 002-001 Revision B 6/24/03 314-102 005-001 Revision A 4/17/02 314-102 003-002 Revision A 12/3/02 11/20/03 2. Helicopter Transport Services, Inc. CH-54B H14NM 14 CFR Part 29 MDL 314-003 Revision I/R 10/14/03 314-102 002-001 Revision C 10/14/03 314-102 005-001 Revision C 10/30/03 314-102 003-002 Revision B 11/14/03 11/20/03 3. Siller Helicopters CH-54A H18NM 14 CFR Part 29 MDL 314-003 Revision I/R 10/14/03 314-102 002-001 Revision E 4/1/05 314-102 005-001 Revision D 4/1/05 314-102 003-002 Revision C 5/3/05 5/4/05 4. Helicopter Transport Services, LLC. CH-54A H16NM 14 CFR Part 29 MDL 314-003 Revision I/R, 10/14/03 314-102 002-001 Revision F, 5/3/12 314-102 005-001 Revision E, 5/3/12 314-102 003-002 Revision D 5/5/12 5/15/12 5. Evergreen Helicopters, Inc. CH-54A R00009SE 14 CFR Part 29 MDL 314-003 Revision I/R 10/14/03 314-102 002-001 Revision F, 5/3/12 314-102 005-001 Revision E, 5/3/12 314-102 003-002 Revision D 5/5/12 5/15/12 *Or later FAA-approved revision FAA Approved: Acting Manager, Seattle Aircraft Certification Office AMENDED: November 20, 2003; May 4, 2005; May 15, 2012 REISSUED: ## Every issue (2) - May 15, 2012: Amended, Current. [certificate](https://openairdocs.org/files/sha256/a2/3c/a23c712e9c234dfc2f85ee2dfe086928eb920b4b2a7a7b9f6cbca1d5ddcd1b0f), [AML SR00931SE.pdf](https://openairdocs.org/files/sha256/f2/31/f231a3591c6a3ab6fbf9d50fd8ef5499c58b2b13f854e0b537ff6d6eed488c6c) - November 20, 2003: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/a2/3c/a23c712e9c234dfc2f85ee2dfe086928eb920b4b2a7a7b9f6cbca1d5ddcd1b0f), [AML SR00931SE.pdf](https://openairdocs.org/files/sha256/8b/95/8b95a706f9655293695bb237d9f2a098dda7a7597094a89a3bb3d4106408abab) --- 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.