Boeing has temporarily suspended test flights of the 777X after an unspecified problem was detected in the plane's engine, the GE9X. The planemaker and GE Aviation are currently investigating the issue, which has prompted Boeing to suspend its 777X testing program. The technical problem with the engine occurred during tests on October 6, 2022, when a Boeing 777-9, registration N779XW, was carrying out several test flights between Seattle and Moses Lake, in the United States, when one of its GE9X engines failed, Aerotime reported. The GE9X has already completed more than 2,600 flight cycles and some 1,700 operating hours. GE Aviation has already completed a borescope inspection of the engine and has agreed with Boeing to remove the part and send it for further investigation at GE's Peebles, Ohio test facility. “During these tests, a temperature alert was observed and the operator shut down the engine normally. GE is coordinating the next steps with Boeing to support the resumption of flight tests," the engine manufacturer explained in a statement sent to FlightGlobal on Wednesday.
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