STC SR01778SE

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

SR01778SE Onboard Systems International, LLC 13915 NW 3rd Court Vancouver, WA 98685 Part 27 the Federal Aviation Regulations H3WE MD Helicopters Inc.

369D, 369E, 369F, 369FF, 369HE, 369HM, 369HS and 500N Installation of Onboard Systems International Cargo Hook Kits and Load Weigh Kit in accordance with the Master Drawing List (MDL) No. 155-112-00, Revision 17, dated August 19, 2019, or later Federal Aviation Administration (FAA) approved revision. Maintained in accordance with FAA accepted Instructions for Continued Airworthiness (ICA) 123-021-00, Revision 3, dated December 19, 2011, or ICA 123-021-01, Revision 5, dated February 5, 2016, as applicable, or later FAA accepted revisions. Operated in accordance with FAA approved Rotorcraft Flight Manual Supplements (RFMS) 121-028-00, Revision 2, dated August 12, 2015, or RFMS 121-028-01, Revision 3, dated January 10, 2020, or later Federal Aviation Administration (FAA) approved revision, as applicable.

Approval of this change in type design applies only to MDHI helicopter models listed above which are equipped with MDHI helicopter cargo hook suspension systems. This approval should not be extended to rotorcraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer 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 rotorcraft. A copy of this certificate, the MDL, the applicable ICA, the applicable Owner’s Manual, and the applicable 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.

January 6, 2006 October 7, 2021 October 31, 2011; February 1, 2017; January 23, 2020 For Acting Manager, Seattle ACO Branch 2 August 3, 2007

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

SR01778SE 2