AMS Heli Design LLC.

Thanks to Vertical team for the opportunity of this article.

https://verticalmag.com/press-releases/ams-heli-design-receives-faa-stc-for-multiple-leonardo-helicopter-configurations/

AMS Heli Design receives FAA STC for multiple Leonardo helicopter configurations The company has been granted a supplementary type certificate (STC) by the Federal Aviation Administration (FAA) to allow multiple configurations for Leonardo AW119 MK II and AW109E Power, including a newly designed VVIP interior.