STC SR09647RC

FEDER NATION United States of America Department of Transportation TRANSTEAD Supplemental Type Certificate Federal Aviation Administration Number: SR09647RC P/N: ST0351RC-R Project Eng.: S. Franke This certificate issued to: Tech-Tool Plastics, Inc. AS W-170 7800 Skyline Park Drive Fort Worth, TX 76108 Part 27 _of the Federal Aviation Regulations.

Original Product - Type Certificate Number: Make: Airbus Helicopters Model:

H9EU AS350B, B1, B2, B3, BA, C, D, D1 Description of Type Design Change:

Installation of Bubble Windows in left hand or right hand side crew doors in accordance with Tech Tools Plastics, Inc., Master Drawing List, Document No. TTP-350-MDL-001, Rev A, dated July 10, 2014, or later Federal Aviation Administration (FAA) approved revision. Rotorcraft Flight Manual Supplement (RFMS), Tech Tool Plastics, Inc. Document No. TTP-350-FMS-001, Revision IR, dated September 8, 2014, or later FAA approved revision is required. Instructions for Continued Airworthiness (ICA), Tech Tool Plastics, Inc. Document No. TTP-350-ICA-001, Revision IR, dated July 11, 2014, or later revision is required.

The installer must determine whether this design change is compatible with previously approved modifications. 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: 11/19/2013 Date Reissued:

Date of Issuance: 10/7/2014 Date Amended:

By Direction of the Administrator Signature _ Title Scott A. Horn Manager, Rotorcraft Certification Office Rotorcraft Directorate The STC s supporting documentation (drawings, instructions, specifications, flight manual supplements, etc.) is the property of the STC holder.

FAA Form 8110-2 (5/14) Page 1 of 2