Injured wife of man who died on Singapore Airlines horror flight has been informed of his death as she recovers in hospital: report New York Post What is it like to fly a plane during turbulence? BBC.comTwenty people from Singapore Airlines flight in intensive care: Hospital Al Jazeera EnglishWhy passengers should always wear a seatbelt while flying: ex-pilot Business InsiderWhat Turbulence Did to Singapore Airlines Flight SQ321 The New York Times