TEXT: Chairman of Aegean Airlines Eftychios Vassilakis, left, Rick Deurloo Senior Vice President - Sales, Marketing and Customer Support at Pratt & Whitney and Aegean Airlines CEO Dimitrios Gerogiannis, right, sign a memorandum of understanding for the purchase of up to 130 new Pratt & Whitney engines for the Greek company's new Airbus passenger jets in Athens, on Wednesday, Dec. 5, 2018. The deal, once concluded, is expected to be worth up to US dollars 1.5 billion. (AP Photo/Petros Giannakouris)