Boeing and GE Capital Aviation Services (GECAS) announced an order for 40 737s. The order, valued at $3.9 billion at list prices, consists of 20 737 MAX 8s and 20 Next-Generation 737-800s. The order, booked in 2013, was previously attributed to an unidentified customer on Boeing's Orders and Deliveries website.

The follow-on order increases the GECAS order book for the 737 MAX to 95 airplanes and the Next-Generation 737 to 387 airplanes, the most for both models by any company in the leasing industry. The Boeing 737-800 is one of the best-selling versions of the highly successful Next-Generation 737 family, the most technologically advanced airplanes in the single-aisle market. The Next-Generation 737's market success has been confirmed by investors who consistently rank it as the most preferred single-aisle airplane due to its wide market base, superior performance efficiency and lowest operating costs in its class.

The 737 MAX brings the most advanced engine technologies to sell airplane, building on the strengths of Next-Generation 737. The 737 MAX incorporates the latest-technology CFM International LEAP-1B engines to deliver the higher efficiency, reliability and passenger comfort in the single-aisle market. Airlines operating the 737 MAX will see an 8% operating cost per seat advantage over tomorrow's competition.

To date, 32 customers have ordered 1,763 MAX airplanes. With January 20, 2014 announcement, GECAS has ordered 638 airplanes directly from Boeing, which includes 737s, 747s, 757s, 767s, 777s and 787s. To date, GECAS has taken delivery of 459 of the airplanes.