China's 9 Air has ordered CFM International's LEAP­1B to power 30 Boeing 737 MAXs, and CFM56­7B engines to power 20 737 NGs. The order is valued at $3.7 billion, and includes spare engines and a service agreement.

"We have had a great experience operating CFM engines in Juneyao Airlines. We look forward to strengthening this great relationship as we launch 9 Air, (and) to introducing the LEAP engine into the mix,” said Juneyao chairman Wang Junjin. “The exceptional fuel efficiency and low maintenance costs these engines bring will be critical our new low­cost operations.”

“We are very pleased to welcome 9 Air to the family of CFM operators," replied CFM International EVP Allen Paxson. "We have had a great relationship with 9 Air’s parent company, Juneyao, from the very beginning and we look forward to building the same kind of great relationship with 9 Air as it launches operations.”