Investigators probing the Feb. 13 inflight shutdown of the No. 2 Pratt & Whitney PW4077 engine on United Airlines Boeing 777-200 heading to Honolulu have traced the issue to a fan-blade separation, a preliminary NTSB report revealed. The aircraft, carrying registration N773UA and operating as Flight 1175 en route to Honolulu’s Daniel K. Inouye International Airport (HNL) from San Francisco International (SFO), was descending through 32,700 ft. when “the flight crew received ...

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