An Indian pilot played a "deadly game" to control a Lion Air plane crashed in Indonesia

Jakarta: Data from the black box show that Lion Air pilots are struggling to keep control of a Boeing aircraft while its automatic security system repeatedly pushed the nose of the plane, according to a preliminary draft report of the Indonesian authorities investigating the murder last month Accident.

Investigators question whether erroneous information from sensors caused the aircraft system to force the dive. The new Boeing 737 MAX 8 plunged into the Java Sea on October 29, killing 189 people on board, including an Indian pilot Bhavya Suneja.

Information from the flight data recorder of the aircraft Air Lion was included in an information meeting for the Indonesian Parliament. The Indonesian authorities were to release the results on Wednesday but would not draw any conclusions from the data presented.
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Peter Lemme, an expert in aeronautics and satellite communications and a former engineer at Boeing, badyzed the data on his blog.
The MAX aircraft, the latest version of the famous Boeing 737 airliner, includes an automated system that pushes the nose down if a sensor detects that the nose is so sharp that the plane could enter a stall aerodynamic.

Lemme described a "deadly tag game" in which the aircraft pointed down, the pilots countered by manually pointing the nose higher, only for the sequence to repeat about five seconds later .

This occurred 26 times, but the pilots were unable to recognize what was happening and to follow the known procedure to counteract the incorrect activation of the automated security system, Lemme told The Associated Press.

Lemme also said he was disturbed by the fact that there had been no easy checks to see if the sensor information was correct, that the fatal flight crew had apparently not been warned that similar problems had occurred during previous flights and that the Lion Air aircraft had not been repaired after these flights.

"If they had repaired the plane, we would not have had an accident," he said. "Every accident is a combination of events, so there is a disappointment around us," he said.

Boeing did not immediately respond to two emails and a phone call requesting comments.

The company said last week that there was nothing left. Confident in the safety of the 737 MAX, airlines around the world had received two updates to "reaffirm the existing procedures in these situations".

American Airlines and Southwest Airlines pilots have complained this month that they have not received all the information about the new MAX system. More than 200 MAX aircraft have been delivered to airlines around the world

The Indonesian investigation continues with the help of US and Boeing regulators. The researchers did not find the voice recorder from the badpit of the aircraft, which would provide more information on the actions of the pilots.