Aviation IndiGo completes replacing A320 Neo aircraft engines Updated : August 28, 2020 03:03 PM IST Budget carrier IndiGo has completed replacing engines for Pratt & Whitney (PW)-run A320neos, sources told CNBC-TV18. The airline has now installed modified engines on 128 A320neo aircraft. GoAir is yet to complete engine replacement exercise for around 20 neo aircraft. 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.