A Qantas flight from Hong Kong to Perth plunged about 100 feet (30 meters) after striking severe turbulence on Monday, injuring seven people.
The Qantas A330-300 Airbus, with 206 passengers and 13 crews on board, was four hours out of Hong Kong when it hit an air pocket over Borneo, according to Qantas spokesman David Epstein.
Passenger Keith Huxtable described the brief but terrifying plunge as "like falling out of a 30-storey building".
Although several passengers without their seatbelts fastened were hurled around the cabin, most of the injuries are believed to have been minor.
Epstein said the Air Transport Safety Bureau was investigating the incident.
He said the pilot aboard QF68, Captain Brett Flack, had decided it was safe to fly onto Perth after the injuries had been reported back to medical authorities in Australia.
Ambulance officers went on board the aircraft to treat the injured when it landed in Perth.