IndiGo, GoAir to get 180 modified Pratt engines for Neos by May-end, says DGCA Azlyrics Published: March 3, 2020 Categories: Lyrics Tags: Airbus A320 Neos · DGCA IndiGo and GoAir currently have just over 90 unmodified Pratt & Whitney (PW) engines on their Airbus A320 Neos that need to be replaced with modified ones by May 31, 2020, to keep flying after that.