KNKT investigator Nurcahyo Utomo on Wednesday said the safety committee had not yet determined if the system was a contributing factor.
That end came after a battle between its flight crew and a computerized control system that repeatedly tilted the plane downward because of a malfunctioning sensor, according to the report.
CNN aviation analyst David Soucie said that the circumstances created by the plane's automatic correction would have made pilot intervention "impossible". It is equipped with an automated system that pushes the nose down if a sensor detects that the nose is pointed so high that the plane could go into an aerodynamic stall.
The disaster was prompted by a technical glitch: Inaccurate readings indicated the plane's nose was too high.
Investigators have previously said the doomed aircraft had problems with its airspeed indicator and angle of attack (AOA) sensors, prompting Boeing to issue a special bulletin telling operators what to do when they face the same situation.
Members of the Lion Air flight crew repeatedly attempted to manually arrest the plane's dive, but the system reasserted itself each time.
Indonesian authorities on Wednesday said that flight carrier Lion Air must improve its safety culture and work better to document fix work on its planes, AFP reported.
It should reveal what the pilots were saying and why they didn't turn off the safety feature.
"We were completely in the dark", said Dennis Tajer, a 737 pilot and spokesman for the Allied Pilots Association, representing American Airlines pilots. What was the problem that may heard on the CVR.
Jailed UK student's wife 'fears for his safety'
Mr Hedges was offered, and accepted, the services of a court-appointed lawyer and was also provided with translators, he said. He said he had held a contructive conversation on Thursday with his UAE counterpart Sheikh Abdullah Bin Zayed.
Nurcahyo Utomo, head of the KNKT, told journalists "This is the basis of our recommendation to Lion Air". Investigators found that the final yank on the control column of Flight 610 registered nearly 100 pounds of pressure, suggesting desperation in the cockpit in the cockpit as the plane plummeted.
The flight data recorder stopped recording 31 seconds after the pilots' last communication with control.
The report by Indonesia's safety commission did not draw conclusions about why the crew lost control of the plane, but it repeated earlier recommendations that pilots be better versed in emergency procedures and aware of past aircraft problems. Instead he carried on to Jakarta. "During rotation the left control column stick shaker activated and continued for most of the flight", the report states. They reported the issue to Lion Air, which checked the 737 and approved it for its final takeoff the next day. The plane had only been in service since August.
"Tinkering around and replacing parts isn't enough". It plans to finish its report within 12 months. The company sent out its public alert more than a week after the Lion Air crash.
"We need to compare the statements of the engineers with the required procedures", Utomo said.
Coming from an aviation family, she said that Suneja's sister wanted to follow in his footsteps, but that the fatal accident had shaken her faith in the technology. "It's not something you ever want to have happen as a pilot".
"Now I have apprehensions. If they would have done that, the aircraft and those people would still be here today", said former NTSB chairman Mark Rosenker. "Someone should have questioned this".
The investigation is continuing with help from U.S. regulators and Boeing.
On Wednesday, the manufacturer stood by its aircraft.
"We are confident in the safety of the 737 MAX", the company said. "Safety remains our top priority and is a core value for everyone at Boeing", a spokesperson said. The pilots were quickly locked in a deadly game of tug of war with a brand new Boeing 737 Max 8.
Investigators have not located the jet's cockpit voice recorder, which could provide insight into the pilots' last actions.