STC SR01727SE

Un ited S tates of Am erica Department of Transportation - Federal Aviation Administration Supplemental Type Certificate

Number SR01727SE This certificate, issued to BLR Aerospace, LLC 11002 29th Ave. West Everett, WA 98204

Part * of the * Regulations.

Original ProductType Certificate Number: * See attached Federal Aviation Administration (FAA) Make: Approved Model List (AML) SR01727SE for approved Model: rotorcraft models and applicable airworthiness regulations.

Description of the Type Design Change: Fabrication of Dual Tail Boom Strake System in accordance with Manufacturing Drawing List Number BL206TBS040, Revision P, dated August 03, 2006, or later Federal Aviation Administration (FAA)-approved revision; and installation of the Dual Tail Boom Strake System in accordance with Installation and Continued Airworthiness Manual Document Number BH206TBS032, Revision A, March 17, 2006, or later FAA-approved revisions.

Limitations and Conditions: Approval of this change in type design applies to the above model rotorcraft only.

This approval should not be extended to other rotorcraft of this model on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. Rotorcraft modified by this STC must be operated in accordance with a FAA-approved copy of one of the Rotorcraft Flight Manual Suppleme nts (RFMS) listed on the Approved Model List (AML) or later FAA-approved revisions, and maintained per Document Number BH206TBS032, Revision A, March 17, 2006, or later FAA-approved revisions. A copy of this Certificate, AML, Installation and Continued Airworthiness Manual, and FAA-approved RFMS must be maintained as part of the permanent records of 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: August 14, 2006 Date reissued: August 23, 2018 Date of issuance: December 18, 2006 Date amended November 23, 2009

FAA FORM 8110-2 (5/14) PAGE 1 OF 2 PAGES By direction of the Administrator

(Signature)

Manager, Seattle ACO Branch (Title)