Boeing delivered its 500th Next-Generation 737 jetliner to Royal Air Maroc (RAM) this month. Boeing produced the 737-800 for the Morocco flag carrier at its factory in Renton, Wash. The Next-Generation 737, first delivered in December 1997, reached this milestone in a shorter time than any other jetliner in history. RAM is based in Casablanca, and has been a Boeing customer since 1970. The airline currently operates a fleet of 31 Boeing airplanes.