Aviation IndiGo shifts to LEAP engines: Here's a look-back at the problems the airline faced with Pratt & Whitney Updated : June 20, 2019 07:55 AM IST The airline is acquiring more aircraft from Airbus — 280 Airbus A320neo and A321neo planes. In 2018, IndiGo faced more than three cases of engine shutdown and flight cancellations. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.