KUALA LUMPUR, Malaysia—The Singapore Airlines jetliner that hit severe turbulence last week went through huge swings in gravitational force in less than five seconds, likely causing the injuries to people who weren’t buckled into their seats, according to a preliminary report Wednesday by Singapore’s Transport Ministry.
The plane dropped 178 feet (54 meters) in less than one second, which “likely resulted in the occupants who were not belted up to become airborne” before falling back down, the Transport Ministry said.
