# STC SR02129NY-D - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Sikorsky Aircraft Corporation, United States - Description: Installation of Keystone Helicopter Corp. Silencer Wall Panel System - Applied: August 14, 2006 - Status date: December 17, 2014 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 29 - Data sheets: [TCDS H1NE](https://openairdocs.org/tcds/H1NE) - Certificate PDF: https://openairdocs.org/files/sha256/0b/09/0b09afefe66d6422bd450da1f060d61104775f80a2337bfcb007fccc12124077 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/450D5FFD105C15FE86257DBD0075E82E.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR02129NY-D ## ADs that name it (0) None. ## Approved models (3) - Sikorsky Aircraft Corporation S-76A ([TCDS H1NE](https://openairdocs.org/tcds/H1NE)) - Sikorsky Aircraft Corporation S-76B ([TCDS H1NE](https://openairdocs.org/tcds/H1NE)) - Sikorsky Aircraft Corporation S-76C ([TCDS H1NE](https://openairdocs.org/tcds/H1NE)) ## 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. FAA Form 8110-2 (5/14) Page 1 of Part of the Signature Title SR02129NY-D Sikorsky Aircraft Corporation 6900 Main Street Stratford, CT 06615 Federal Aviation Regulations. 1. Installation of Keystone Helicopter Corp. “Silencer” Wall Panel System in accordance with Keystone Helicopter Installation drawing List IDL00916 Rev. A dated 05/18/2011 or later FAA approved revision. 2. Keystone Helicopter Instructions for Continued Airworthiness, “Silencer” Wall Panel System, Report No. IC00916 Rev - dated April 18, 2006 or later FAA accepted revision is required for this modification. 1. Compliance to FAR 29.812 has not been established for the installation of this system. An approved emergency lighting system is required. 2. Compliance to FARs 29.783(c)(e), 29.803(a)(b), 29.807(a)(b), 29.809(c), 29.811, 29.813(a), 29.1301(a)(d) and 29.1557(a)(d) has not been established for the installation of this system. An approved interior configuration is required. (See Limitations and Conditions continued on Page 3 of 3) Gaetano Sciortino Manager New York Aircraft Certification Office Sikorsky S-76A/B/C October 1, 2011, December 17, 2014 May 18, 2011 August 14, 2006 February 16, 2007 H1NE 3 FAA Form 8110-2 (5/14) Page 2 of To (Name and address of transferee) From (Name and address of grantor) 3 SR02129NY-D FAA Form 8110-2 (5/14) Page 3 of 3 Date Reissued: December 17, 2014 3. The installer must determine whether this design change is compatible with previously approved modifications. 4. 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. Certification Basis: Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the Sikorsky S-76 A/B/C is as follows: a. The type certification basis for Sikorsky S-76 A/B/C is shown on TCDS H1NE for parts not changed or not affected by the change. b. The certification basis for parts changed or affected by the change since the reference date of application is based upon Part 29 as amended by Amendment 29-52. Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for this modification was determined to be: Regulations at the latest amendment 29-0 through 29-52 29.1, 29.301, 29.303, 29.305(a), 29.307(a), 29.337, 29.601, 29.603, 29.605(a)(b), 29.607, 29.609, 29.613(a)(b) (d)(e), 29.625(a)(c), 29.853(a)(1)(2), 29.1529 Regulations at an intermediate amendment: Regulations at the amendment level in TCDS H1NE: 29.561(a)(b)(3)(c) ----------END---------- SR02129NY-D ## Every issue (2) - December 17, 2014: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/0b/09/0b09afefe66d6422bd450da1f060d61104775f80a2337bfcb007fccc12124077) - October 1, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/44/65/4465f30006ecd25c90594b779b6fe468cd45aa3dc23b0edd7fe209c750d068ce) --- 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.