Embraer Executive Jets’ first U.S.-assembled Phenom 300 was rolled out and made its first flight yesterday, exactly one year after the first Phenom 100 to be produced in the U.S. took its maiden flight. The Phenom 300 started rolling down the company’s Melbourne, Fla. assembly line in September. Delivery of this light jet is scheduled in the first quarter; it will go to the Embraer Executive Jets Melbourne-based flight department, which will use it as a demonstrator.