This photo provided by passenger Haley Ebert shows damage to an engine on what the FAA says is a Boeing 777 after parts came off the jetliner during its flight from San Francisco to Honolulu Tuesday, Feb. 13, 2018. The plane landed safely as emergency responders waited nearby. United Airlines spokeswoman Natalie Noonan says Flight 1175 made an emergency landing due to a mechanical issue. (Haley Ebert via AP)
The Boeing 777, which was carrying 363 passengers and 10 crew members, "declared an emergency due to a vibration in the right engine" before safely landing about 40 minutes later in Honolulu, the Federal Aviation Administration said, according to KHON. Emergency personnel were "standing by as a precaution," the Hawaii Department of Transportation said.