GE Aerospace Chief Financial Officer Rahul Ghai said a durability issue involving the GE9X engine's mid-seal would not delay the Boeing 777X's entry into service next year. Speaking at a Morgan Stanley conference on Thursday, Ghai said GE had begun shipping GE9X engines fitted with a redesigned mid-seal to Boeing in the third quarter. GE expects the FAA (U.S. aviation safety regulator) to certify the redesigned part within the next few months.