The plane was intact with its engines running when it crashed, at more than 450 miles per hour (720 kph), into the Java Sea, Soerjanto Tjahjono, head of Indonesia's National Transportation Safety Committee, said at the time.
- Faulty equipment and Indonesian carrier Lion Air's own safety failures had pilots fighting for control of their Boeing 737 MAX 8 as it plunged into the Java Sea on October 28, killing all 189 people aboard, investigators said Wednesday.
The preliminary report does not assign responsibility for the crash but confirms that it occurred after faulty measurements of airflow by instruments mounted on the wings...
"It's all consistent with the hypothesis of this problem with the M.C.A.S. system", said R. John Hansman Jr., a professor of aeronautics and astronautics and director of the global centre for air transportation at the Massachusetts Institute of Technology.
Nurcahyo Utomo, head of the Indonesia transportation safety committee, said it's clear the aircraft shouldn't have been permitted to leave the tarmac. Pilots even asked air traffic controllers to tell them how fast and high they were flying.
A source at the U.S. Federal Aviation Administration said a number of factors were ultimately likely to be cited as causes of the crash, including pilot training and maintenance.
A fuller account of problems with the sensors on the fuselage, called angle-of-attack sensors, is expected to be part of a full report on the crash by Indonesian investigators.
"This is the basis of our recommendation to Lion Air".
The report offered new details on persistent problems with sensors on the Lion Air jet and the airline's efforts to fix them.
The pilot of the 28 October flight chose to press on to Jakarta after shutting down the plane's anti-stall system, Utomo said.More news: Mack Brown accepts North Carolina Tar Heels job
Last week, KNKT investigator Nurcahyo Utomo told parliament that the jet's Maneuvering Characteristics Augmentation System (MCAS) - an automated modification new to the model that crashed - activated and directed the jet's nose down to prevent a stall.
The MAX aircraft that crashed is the latest version of Boeing's popular 737 jetliner.
After landing, the pilot reported the malfunction to the engineers, who performed a number of maintenance checks on the aircraft before it was used for the Pangkalpinang flight.
The data also shows that the aircraft automatically tried to push the plane of the nose down, then the flight crew tried to push the nose back up.
Mr Lemme described "a deadly game of tag" in which the plane pointed down, the pilots countered by manually aiming the nose higher, only for the sequence to repeat about five seconds later.
The Indonesian investigation is continuing with help from USA regulators and Boeing.
Authorities have recovered the flight data recorder but are still looking for the other black box, the cockpit voice recorder, which should reveal what else happened before the accident, according to Sky News. Because the MAX aircraft have heavier engines, the center of gravity is biased more forward than on previous models and MCAS is meant to improve pitch feel and provide stall protection.
We are taking every measure to fully understand all aspects of this accident, working closely with the investigation team and the relevant government authorities.
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. Earlier this month, pilots at American Airlines and Southwest Airlines complained that they had not been given all information about the new automated anti-stall safety system on the MAX.