The moves involving Pratt & Whitney PW4000 engines came after a United Airlines 777 landed safely in Denver on Saturday local time after its right engine failed. United said the next day it would ...

The interim order by U.S. authorities to inspect all Pratt & Whitney PW4000-112s applies to some 125 Boeing 777s. NTSB chairman Robert Sumwalt said that a fan blade from the PW4000 that failed in ...