BJECT TO PROTECTIVE ORDER PARAGRAPHS 7, 8, 9, 10, 15, and 17 EFTA 00243357 EFTA01328473 October 29, 2019 Federal Aviation Administration Attn.: James Sprecher 2200 S. 216th Street Des Moines, Washington, 98198 SUBJECT: Program Letter for Special Airworthiness Certification REGISTERED OWNER: Helibro, LLC