Boeing signals flight control system problem may have contributed to 737 crash

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The Lion Air investigation comes after Indonesia's government ordered an inspection of all Boeing 737 Max 8 planes in the country.

The news was first reported by Bloomberg reported on Tuesday.

It hit the pole at about 11am on Wednesday while manoeuvring in front of the terminal building.

"Lion Air said the problem was fixed, is it true the problem was cleared?" asked Bambang Sukandar, whose son was on the flight. Earlier that same year, a Turkish-owned charter flight crashed, killing 189 people, after the pilots' airspeed indicators told them the plane was moving much faster than it really was. "If there are urgent findings to be delivered, we will convey them to the operators and to the manufacturer", he said, according to AP. The single-aisle family is Boeing's biggest source of profit. "So far, there's no disruption on the operation of our Max jet".

Comment was being sought from SilkAir, which began flying 737 Max 8 aircraft between Singapore, Cairns and Darwin in January this year.

Experts say the angle of attack is a crucial parameter that helps the aircraft's systems understand whether its nose is too high relative to the current of air - a phenomenon that can throw the plane into an aerodynamic stall.

Indonesian officials are providing the strongest hints yet that a faulty airspeed indicator played a role in the deadly crash of a Lion Air jet into the Java Sea.

A passenger jet that crashed into the sea near Indonesia last week had an airspeed indicator problem on its final four flights, officials say.

The operations-manual bulletin was issued Tuesday, the USA planemaker said in a statement posted to Twitter, and tells crew to use existing guidelines when dealing with erroneous inputs from the so-called angle of attack sensor.

An erroneous angle-of-attack reading while pilots are flying manually can cause the plane's flight computers to command the Max models to dive, Boeing said in the bulletin to airlines.

The plane's altitude was mostly about 5,000 feet (1,524 meters), but rose and fell repeatedly within a range of a few hundred feet, according to flight-tracking data from FlightRadar24.

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"Four days into the review, we have inspected aircraft belonging to seven national airlines and six types of aircraft namely B737-300s", -500s", -800s", -900s, B737 MAX 8s, ATR72-500/600s, and A320-200s.

The KNKT added that the FDR's recordings were 69 hours from 19 flights and the last date of recording was from the date of the crash and corresponded with public data available on flight-tracking websites. There were no survivors.

There are audio signals and physical warnings that can alert the pilot to malfunctioning equipment or other dangers, said Todd Curtis, director of the Airsafe.com Foundation.

On the October 28 flight, from Bali to Jakarta, the pilot's and copilot's sensors disagreed.

"We also plan to conduct a flight reconstruction to see the impact of the AOA sensor damage in the engineering simulator at the Boeing facility in Seattle".

An Indonesian rescue diver died during the search for a second black box, parts of the plane, and human remains on the muddy seabed.

Divers have recovered one of Lion Air Flight 610′s two black boxes, the flight data recorder.

A week after the disaster, there is still no answer as to what caused the crash.

The jet reported a discrepancy in its angle of attack sensor during a flight from Bali to Jakarta the day before it crashed.

"But it's a very curious thing".

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