ZeroAviation is set to flight test a hydrogen-powered six-seat aircraft, but says that by 2040 the technology could carry 200 people more than 3,000 nm.
NBAA, asking its members to weigh in on the NPRM, said the FAA pilot record would have a "substantial impact" on a large contingent of business aviation.
Recent production cuts and plans to go after aftermarket opportunities are part of a multi-pronged effort to improve the company's financial performance.