The Impact of the Tax Cuts and Jobs Act of 2017 The ADS-B Out Deadline See, e.g., Growing Concerns Regarding Illegal Charter David T. Norton is a partner and head of the aviation practice at Shackelford, Bowen, McKinley & Norton, a former Chair of the Aviation Section of the State Bar of Texas, an Airline Transport Pilot and Certified Flight Instructor who is very active in multiple business aviation groups such as the National Air Transportation Association and the National Business Aviation Association, and a frequent speaker and author on various issues impacting the business aviation community.