UK budget carrier EasyJet has ordered 54 CFM56-5B engines from CFM International to power its 27 Airbus A320ceo aircraft scheduled for delivery between 2015 and 2018. The airline is exercising 27 existing purchase rights. CFM values the firm engine order at more than $560 million at current list prices.

EasyJet, which operates 226 CFM56-5B-powered A320-family aircraft, selected CFM’s LEAP-1A for its new fleet of A320neo aircraft.

EasyJet CEO Carolyn McCall said, “EasyJet’s proven strategy continues to deliver significant returns for shareholders, and we are bringing new aircraft into the fleet as we continue to see a significant number of new profitable opportunities in our core markets in the near term and in order to maintain our cost advantage.”

All of easyJet’s new engines will include the CFM56-5B Performance Improvement Package (PIP) configuration.