NTSB's preliminary investigation found separation of a fan blade caused the United Airlines Boeing 777 to loss forward engine cowl ...
One of the right Pratt & Whitney PW4077 engine’s fan blade separated from its hub during the flight, and punctured the casing, resulting in loss of inlet and fan cowls.
The incident happened at about 12:00 PM HST during descent into Daniel K. Inoyue International Airport (KHNL), Honolulu, Hawaii.
Shortly after initial descent, passing through about flight level 327, the flight crew received warnings of an engine compressor stall, and shut down the engine.
The crew declared an emergency and proceeded to KHNL without further incident.
The airplane was operating under 14 CFR Part 121 as a regularly scheduled passenger flight and had originated from San Francisco International Airport (KSFO), San Francisco, California carrying 363 passengers and 10 crew members.
