That may have been from loss of cabin pressure, experts said.

For example an engine fire or loss of cabin pressure.

It took minutes for the ship to lose cabin pressure.

Within 10 minutes the crew reported a severe loss of cabin pressure.

The L-1011 lost cabin pressure and two passengers fell out of the aircraft.

The computer would continue to monitor the cabin pressure and warn the crew of any changes.

A drop in cabin pressure stole the air from his lungs.

The plane apparently suffered a loss of cabin pressure at some point early in the flight.

That forces the crew to keep cabin pressure at its maximum - the equivalent of 8,000 feet.

About an hour into the flight there was a bump in the air, and a sudden loss of cabin pressure.