Monday, November 05, 2018

Investigators Download 69 Hours of Data From Crashed Lion Air Jet

Jakarta: Investigators have downloaded data detailing the last 19 flights of a new Boeing jetliner that crashed into the Java Sea, raising confidence Sunday that they will be able to build a picture of what went wrong before its doomed trip with 189 people on board.

The downloads amounted to 69 hours of data from the flight data recorder recovered from the seabed Thursday. Divers were still hunting for a second black box, the cockpit voice recorder, which officials said was likely buried under more than three feet of mud.

“We’re quite confident that the data that we have is the correct data,” said Nurcahyo Utomo, an investigator at Indonesia’s National Transportation Safety Committee. A detailed analysis of the data would begin Monday, he said.

Investigators have gleaned latitude and longitude data that lines up with information publicly disseminated by tracking networks, Mr. Utomo said.

The Indonesian investigators are being joined by foreign experts including representatives from the U.S. Federal Aviation Administration, the National Transportation Safety Board, Boeing Co. and General Electric Co. , a partner in engine manufacturer CFM International.

The download from the memory unit included about 1,800 parameters of data. Flight data recorders track data ranging from basic speed and altitude to the position of flight-control surfaces and flight-control inputs by the crew.

The memory unit of the flight data recorder was found at a depth of about 100 feet and had been stripped from its casing. The cockpit voice recorder has emitted locator pings through the water but has so far eluded divers. The beacons are designed to emit signals for at least 30 days.

04/11/18 Ben Otto and Gaurav Raghuvanshi/Wall Street Journal

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