GE9X certification testing

Trials of the first full engine to test (FETT) GE9X engine commenced in March 2016 at Ohio, generating critical data on the full engine system and aerodynamic performance, mechanical verification, and aero thermal system validation. Testing of the

FETT engine concluded earlier this year with a series of preliminary natural-icing tests at PTO, where the GE9X ran more than 50 test points, accumulating 168 hours and 162 cycles for certification testing. The GE9X will power Boeing’s new 777X aircraft.