MOSCOW, Oct. 29 /PRNewswire/ — Boeing (NYSE: BA) and the State Corporation Rostechnology today announced the finalization of an order for 50 Next-Generation 737 airplanes. The order includes purchase rights for an additional 35 Next-Generation 737s. The State Corporation’s Supervisory Board approved the definitive agreement that was signed and announced on Sept. 17 during the Sochi Investment Forum in Russia. The order is valued at $3.7 billion at average list prices. Rostechnology’s order includes 15 Next-Generation 737-700s, 25 737-800s and 10 737-900ERs (extended range).