Categories: world

Questions remain on pilot actions on Lion Air flights that killed 189 people

Indonesia's National Transport Safety Committee (NTSC) presented its preliminary results Wednesday, almost a month after the Boeing 737 MAX 8…

Indonesia’s National Transport Safety Committee (NTSC) presented its preliminary results Wednesday, almost a month after the Boeing 737 MAX 8 aircraft crashed into water after a few minutes, killing all 189 people aboard.

According to a two-sided summary document, pilot pilots reported on the aircraft’s second-largest flight from Denpasar to Jakarta, noting that the instruments showed incorrect readings from the AoA sensors.

AoA sensors send information to the planet’s computers about the angle of the planet’s nose relative to the upcoming air to determine if the plane is to be installed.

The report said the plane “automatically trimmed” on the previous flight &#821

1; that is, the computer adjusted the aircraft’s attitude – so the pilots switched to manual trim and because their safety checklists did not recommend an emergency landing, they continued to Jakarta.

Further May maintenance on the AoA sensor was performed in Jakarta before the Flight 610 start next morning. After the flight started, the instruments recorded a significant deviation at the aircraft’s angle – as much as 20 degrees.

Within 90 seconds of starting, the fellow pilot asked the flight control to confirm flight speed and height. Thirty seconds later, he reported that they had experienced a “flight control problem”, the report added.

After the aircraft flaps retracted after starting, the automatic trim problem noted on last night’s flight returned until the flight manufacturer stopped recording when the plan crashed.

As part of the ongoing investigation, the incorrect AoA sensor will undergo further testing, told NTSC. It plans to complete its report within 12 months.

Searching for the voice burner

In response to the report, Boeing said it was “deeply saddened” by the loss of the Lion Air flight – but retained the 737 MAX 8 “as safe as any aircraft that ever flown the skis.”

Most data from the preliminary report were obtained from the flight data recorder (FDR) drawn from the bottom of the ocean on November 1st.

However, investigators are still looking for the cockpit flight, believed to be buried in thick clay on the seabed. The data recorder, if found, will reveal more about the pilot’s final efforts to control the flight and how they differed from the pilots on the previous flight.

“We have to know what was the pilot discussion during the flight. What was the problem of CVR’s why the difference in action is what we need to find. Currently, I do not have the answer,” says Captain Nurcahyo Utomo, NTSC’s

  • Lion Air delivers 11 Boeing 737 MAX 8 aircraft, including downward jets.

  • Diver searching for the wreck finds the main hull and the wreckage of the aircraft.

    The aircraft’s landing gear was discovered from the seabed.

    The aircraft’s landing gear discovered. claiming that they can hear a signal from the aircraft’s missing cockpit voice recorder (CVR).

    Syahrul Anto, 48, one of the divers involved in the search for victims and wrecks from the flight has been confirmed to have died while they were rksamma.

  • Search teams lose “ping” from CVR.

    The head of Indonesia’s National Transport Safety Committee reveals that the planet was intact when the engines drove when it crashed high in the Java Sea.

  • Boeing issues operational guidance to the airlines, giving pilots advice on handling incorrect cockpit readings from AOA sensors. FAA later gave its own directive which provided pilots on how to answer similar problems.

    Investigators analyzing FDR say they discovered that the planet was found to have a malfunction for the aviation speed indicator for the last four flights – including the deadly

  • The US based Allied Pilots Association claims that Boeing retained information about the potential risks with new flight control functions on MAX 8.

  • Lion Air joins APA in alleged Boeing failed to warn pilots about the potential risks with a new safety feature involved in the crash.

  • Boeing’s stock slides more than 8% in a week, as investors are increasingly concerned that it could be held responsible for the lethal Lion Air crash.

    The parents of Rio Nanda Putrama, who died in crash, are suing Boeing for his alleged “unsafe design” of the 737 Max 8 aircraft.

Source: CNN Reporting

In the course of the investigation, officials have identified problems with the Flight Control Functional Enhancement System (MCAS).

The feature is new to Boeing MAX plan and is automatically enabled to lower the nose to prevent the planet from stopping, based on information sent from its external sensors, including the AoA sensors.

Allied Pilots Association (APA) and Lion Air’s Operational Director claim that Boeing’s MAX 8 Operational Manual did not contain sufficient information on the MCAS system. Both the pilot and the pilot in Flight 610 were experienced, the airline has said, with 6,000 and 5,000 flight hours, respectively.

“We receive no information from Boeing or from the regulator about the extra training for our pilots,” Zwingli Silalahi, Lion Air Operations Director told CNN on November 14th.

The report said Flight 610 reported a “flight control problem” in the protocol after leaving from the Indonesian capital on its way to the city of Pangkal Pinang, on the island of Bangka.

Differences were recorded between left and right AoAs, which continued until the end of the information captured by the airplane player, according to investigators.

Boeing stood at the aircraft safety register. “We are confident about security in 737 MAX. Security is our top priority and is a core value for all at Boeing,” said a spokesman.

The parents of a passenger suits Boeing, claiming that the 737 MAX 8 had an insecure design. The package claims that Boeing failed to communicate a new security feature that did not exist in the last 737s.

Boeing released an operating bulletin on November 6, a week after the crash, warning all airlines about how to correct incorrect measurements related to the planet’s external sensors. The Federal Aviation Administration (FAA) later issued its own directive that provided pilots on how to respond to similar issues.

Earlier this month, Indonesian investigators surveyed the jet’s airplane player that there were problems with the aviation indicator on three flights before the crash.

The aircraft was intact when the engines drove when it crashed, over 450 mph (720 km / h) in Java Sea, said Soerjanto Tjahjono, head of Indonesia’s National Transport Safety Committee at that time.

Tjahjono said that due to the small size of the trash found and the loss of the planet’s motorbags, investigators showed that the Flight 610 did not explode in the air but was in “good shape” before crashing 13 minutes after starting.

Authorities still search for the aircraft’s cockpit voice recorder (CVR), believed to be buried under deep clay. If found, it would add details of what happened in the cockpit during the last seconds of the flight.

Published by