The Pratt & Whitney unit, which has faced a series of setbacks with its geared turbofan engine, halted deliveries for the Airbus A320neo for almost a month earlier this year after discovering a new problem. (cnbc.com)
The nearly 18 - year - old jet is powered by two CFM International CFM56 - 7B turbofan engines. (businessinsider.com)
Rolls - Royce's new RB211 triple - spool turbofan engine was expected to be able to deliver the performance capable of powering the new 300 seat jet. (businessinsider.com)