Saturday, November 13, 1999 Published at 03:01 GMT
EgyptAir engines cut off
Investigators unlocked the secrets of Flight 990's flight data recorder
Data decoded from the flight recorder of EgyptAir flight 990 which crashed last month shows that the engines cut off during the plane's rapid descent into the Atlantic.
The new information was gleaned from the flight data recorder of the plane that crashed into the Atlantic soon after taking off from New York's JFK airport on 31 October, killing all 217 people on board.
A master warning system was then activated, but apparently ignored.
The angle of descent then lessened, but a few seconds later the start levers on both engines changed from run to cut-off and the data showed the engines shutting down.
Mr Hall refused to say whether the autopilot disconnected manually or automatically.
Search back on
US navy divers retrieved the data recorder from the ocean floor on Tuesday, and have resumed the search for the second "black box" after weather and technical problems.
The second recorder should contain conversation and other audio information from the cockpit.
Two underwater robots - the Deep Drone off the USS Grapple and the Magnum off the civilian ship Carolyn Chouest - were hunting in the debris 250 feet below the surface.
A preliminary analysis of the flight data recorder, which was recovered on Tuesday showed there was no evidence that the plane's thrust reversers had deployed accidentally - as had originally been feared.