General Electric's GE9X jet engine wins certification from U.S. regulator

General Electric's GE9X jet engine wins certification from U.S. regulatorThe coronavirus crisis compounded that hold up this year as demand for air travel plunged, with Boeing saying in July it was delaying the 777X's entry to service by a year to 2022. GE said on Monday it has received orders and commitments for more than 600 GE9X engines, and has delivered eight GE9X test engines and two test spares for Boeing's four 777X test aircraft.