Ace investor Rakesh Jhunjhunwala-backed Akasa Air on Wednesday announced signing an agreement to purchase CFM LEAP-1B engines to power its Boeing 737 MAX airplanes and the overall deal is estimated to be worth $4.5 billion. The announcement comes a day after the upcoming ultra low-cost carrier said it would buy 72 Boeing 737 MAX planes from Boeing Co. With this purchase and services agreement, Akasa Air will have from day one of its operations an innovative and comprehensive maintenance programme delivered by CFM, the airline said. The pact was signed with CFM at the ongoing Dubai Airshow. The deal, which includes spare engines and long-term service agreement, is estimated to be worth $4.5 billion at list price. “We are pleased to partner with CFM International as we embark on an exciting journey to launch the greenest, most affordable and most dependable airline in India.