Replies

As I said previously I thought the airspeed mismatch was a separate problem -- because the AOA vane does not directly affect the airspeed indication. It turns out the Indonesian investigators said this on Nov 5th . The airspeed split is seen on the published graphic data plots, including from the previous Bali-Jakarta flight.

Doomed Lion Air plane's air speed indicator was malfunctioning for last four flights

"We found a malfunction in an air speed indicator instrument in the last four flights, including the crash flight," Capt. Nurcahyo Utomo of the National Transportation Safety Committee (KNKT) told CNN on Monday. "We ask NTSB and Boeing to work on this to prevent same accident happening in the future."

Utomo confirmed to CNN that there were two airspeed indicators in the cockpit. "One belongs to the pilot in command and one belongs to the co-pilot. One of them should have reacted to the airspeed indicator malfunction in his display," said Nurcahyo, confirming that the jet was in the pilot's control, set to manual.

https://www.cnn.com/2018/11/05/asia/lion-air-crash-plane-intact-intl/index.html