Lion Air jet’s airspeed indicator malfunctioned on 4 flights

Jakarta, November 07, 2018: The “black box” data recorder from a crashed Lion Air jet shows its airspeed indicator malfunctioned on its last four flights, investigators said Monday, just hours after distraught relatives of victims confronted the airline’s co-founder at a meeting organized by officials.

National Transportation Safety Committee chairman Soerjanto Tjahjono said the problem was similar on each of the four flights, including the fatal flight on Oct. 29 in which the plane plunged into the Java Sea minutes after taking off from Jakarta, killing all 189 people on board.

Erratic speed and altitude on the plane’s previous flight, from Denpasar on Bali to Jakarta, were widely reported and “when we opened the black box, yes indeed the technical problem was the airspeed or the speed of the plane,” Tjahjono told a news conference according to aviationindia.net.

“Data from the black box showed that two flights before Denpasar-Jakarta also experienced the same problem,” he said. “In the black box there were four flights that experienced problems with the airspeed indicator.”

Indonesian investigators, the plane’s manufacturer, Boeing, and the U.S. National Transportation Safety Board are formulating a more specific inspection for Boeing 737 MAX 8 planes related to the airspeed problem, Tjahjono said.

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