Jet black box shows struggle of Lion Air pilots

Indonesia says Lion Air jet that crashed was not airworthy

Indonesia says Lion Air jet that crashed was not airworthy

Data from the jetliner that crashed into the Java Sea last month shows the pilots fought to save the plane nearly from the moment it took off, as the Boeing 737's nose was repeatedly forced down, apparently by an automatic system receiving incorrect sensor readings.

All 189 people on board were killed when the new Boeing 737 MAX 8 crashed into the sea on October 29.

The state-of-the-art 737 MAX 8 airplanes do not have this feature, yet the company failed to prominently warn pilots of the change even as airlines worldwide began taking delivery of the new jets past year, pilots say. The plane then began careening up and down uncontrollably before crashing into the water at about 400 miles per hour, Sputnik previously reported.

That's one of the findings in a preliminary report released today by Indonesia's National Transportation Safety Committee.

Sensors that measure speed were flushed and checked, and an electrical plug was cleaned before the fatal flight.

On the plane's 11-minute final flight, the Boeing safety software attempted to push the nose down more than 30 times, but the pilots - a different crew than had flown the jet the day before - never used those switches.

It also said the plane's "stick shaker" - which vibrates the aircraft's steering wheel-like control yoke to warn of a system malfunction - was "activated and continued for most of the fight".

In a statement following release of the report, USA -based Boeing declared that the MAX, its newest plane, is safe.

The pilot and co-pilot on the two flights reacted differently to the multiple errors messages and malfunctions. They also ran safety checklists.

It is unclear why the pilots did not employ procedures to disable the automated system.




Several experts said, however, that Boeing likely will have to consider changes in the new anti-stall system, perhaps developing an algorithm to disregard sensor readings that appear off-base.

The plane's automatic safety system repeatedly pushed the plane's nose down, according to a draft of a preliminary report by Indonesian authorities.

There are steps pilots can take to manually override the system, but it's not clear if the Lion Air pilots aboard flight JT610 knew them. The government report suggests the airplane should have been removed from service because of earlier reports about problems.

The NTSC investigation shows that throughout the flight faulty sensors were feeding the system incorrect readings and the pilots were continually battling to prevent it from forcing the nose of the plane down right up until the crash.

The report has recommended that Lion Air improve its safety culture, to enable pilots to make proper decisions - including deciding to discontinue a flight if the plane becomes un-airworthy.

He also noticed that the aircraft was automatically trimming nose down and after this happened three times the co-pilot, who was flying the aircraft, commented that the control column as too heavy to hold back.

Pilots experienced several problems with the aircraft in the days leading up to the October 29 crash, investigators said - including a faulty airspeed sensor, altitude indicators and angle-of-attack sensors that should have grounded the plane.

Boeing Chief Executive Dennis Muilenburg said earlier this month that Boeing provides "all of the information that's needed to safely fly our airplanes" but the jet's manual and training methods have come under scrutiny after the crash. "Every accident is a combination of events, so there is disappointment all around here", he said. Crash investigators will attempt to reconstruct the crash at a Boeing facility in Chicago.

Boeing has a great deal at stake in defending its plane.

Its co-founder Rusdi Kirana - who described his own airline as the "worst in the world" in a 2015 interview - is a close confidante of President Joko Widodo, who appointed him to the key post of Indonesia's ambassador to neighbouring Malaysia. Pilots at American Airlines and Southwest Airlines complained this month that they had not been given all information about the new automated anti-stall safety system on the MAX. However, its share price rose on today's news.

Recommended News

  • Upended by frat boys: worldwide  lawmakers slam Facebook's effect on politics

    Upended by frat boys: worldwide lawmakers slam Facebook's effect on politics

    Court documents from that California trial were sealed and kept confidential - until Kramer visited Britain over the weekend. Zuckerberg, who is not here, doesn't appear to be willing to do the job himself", said Charlie Angus, a Canadian lawmaker.
    UK Parliament Seizes Facebook’s Internal Documents

    UK Parliament Seizes Facebook’s Internal Documents

    They also reveal what Zuckerberg and other top Facebook leaders knew about user information on the platform. The site claims the documents include confidential emails between executives, including Zuckerberg himself.
    Red Dead Redemption 2 multiplayer starts tomorrow for select players

    Red Dead Redemption 2 multiplayer starts tomorrow for select players

    Those who bought the Red Dead Redemption 2 Ultimate Edition will be the first to join the eagerly-anticipated online mode. A new Red Dead Redemption 2 update is out now that introduces Red Dead Online to the game.
  • Samuel Little: 78-year-old man confesses to 90 killings

    Samuel Little: 78-year-old man confesses to 90 killings

    Little had also served time for assaulting a woman in Missouri and assaulting and falsely imprisoning of a woman in San Diego. They released a map to the public on Tuesday which shows where and who Little claimed to have killed.
    Spider-Man: Into The Spider-Verse Getting Sequel Annd Spin-Off

    Spider-Man: Into The Spider-Verse Getting Sequel Annd Spin-Off

    Amy Pascal is producing the sequel and spin-offs, and Lord and Miller are expected to also return in a creative capacity. The script will be written by Bek Smith, who wrote episodes of the CBS series Zoo .
    First Genome-Edited Babies? - Hit & Run

    First Genome-Edited Babies? - Hit & Run

    Using the analogy of cloning technology, he said: "After Dolly the Sheep, there have been many animals tested for cloning ". He told the AP he felt a strong responsibility "not just to make a first, but also to make an example" for future research.
  • Scientist behind gene editing claims second pregnancy under way

    Scientist behind gene editing claims second pregnancy under way

    Southern University of Science and Technology said that it is unaware of the research project and is launching an investigation. Most mainstream scientists think it's too unsafe to try, and some denounced the Chinese report as human experimentation.
    Chelsea vs. PAOK Salonika - Football Match Report

    Chelsea vs. PAOK Salonika - Football Match Report

    I talk to them player by player. "He has to work and he is very good in the one on one, but he has to move without the ball". It's very hard for me to understand why we played without determination in such an important match.
    UNC reportedly hiring Mack Brown as next coach

    UNC reportedly hiring Mack Brown as next coach

    Following five years away from coaching, the longtime Longhorn coach will return to North Carolina to coach the Tar Heels. The news comes just a day after the University announced it would not retain Larry Fedora following a 2-9 season .
  • PSG's antics made us look like butchers, says angry Jürgen Klopp

    PSG's antics made us look like butchers, says angry Jürgen Klopp

    A total of six Liverpool players were booked at the Parc des Princes , compared to just Verratti and Neymar for PSG . PSG had only won one of their previous seven games in the competition.
    Sophie Turner and Joe Jonas reach India for Nick, Priyankas wedding

    Sophie Turner and Joe Jonas reach India for Nick, Priyankas wedding

    Nick Jonas arrived in India in time to celebrate Thanksgiving with Priyanka in Delhi and the couple then travelled to Mumbai . Nick was also seen sporting traditional Indian outfit, an embroidered pink kurta paired with cream pajamas and sunglasses.
    Paul Manafort met with Julian Assange in 2016

    Paul Manafort met with Julian Assange in 2016

    WikiLeaks is so confident of its claim, that it announced it's willing to put its money - and Assange's life - on the table. The next month they hacked into the Democratic Congressional Campaign Committee and the Democratic National Committee.

We are pleased to provide this opportunity to share information, experiences and observations about what's in the news.
Some of the comments may be reprinted elsewhere in the site or in the newspaper.
Thank you for taking the time to offer your thoughts.