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Boeing issues warning on potential instrument malfunction after Indonesia crash
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Days of extreme weather have wreaked havoc across Italy, killing more than two dozen people and destroying infrastructure. (Jason Aldag /The Washington Post)
By Timothy McLaughlin and
Stanley Widianto
November 7 at 8:17 AM
JAKARTA, Indonesia — Airplane manufacturer Boeing said Wednesday that it has issued a bulletin to airlines worldwide warning of erroneous readings from flight-control software on its planes, after an almost-new Lion Air jetliner crashed into the sea soon after takeoff, killing the 189 people on board.
Boeing, which is assisting in an investigation into what went wrong in the Oct. 29 crash of one of its new 737 Max 8 jets, said in a statement that it issued the bulletin Tuesday as “part of its usual process.”
The bulletin informed airline operators of what to do if they receive false readings from flight-control software that measures the angle of the plane and alerted flight crews of the procedure to follow.
The bulletin from Boeing was the first indication that an error with the aircraft’s systems may have caused problems for the Lion Air flight, which took off from Jakarta. Instead of a smooth takeoff, the plane’s altitude fluctuated dramatically, and the plane increased in speed before nosediving into the Java Sea 13 minutes later.
Indonesian investigators have recovered the plane’s flight data recorder, which showed that the plane’s airspeed indicator malfunctioned on its last four flights.
“The Indonesian National Transportation Safety Committee has indicated that Lion Air Flight 610 experienced erroneous input from one of its AOA (Angle of Attack) sensors,” Boeing said in the statement. A misreading in the sensor can cause the plane to dive suddenly.
The crash of Lion Air Flight 610 is just the latest in a string of incidents for the airline
Since it began operations in 2000, the Indonesian budget carrier Lion Air has had more than a dozen safety incidents, including fatal accidents. (Jason Aldag /The Washington Post)
Indonesian investigators said Wednesday that an AOA sensor on the jet was replaced the day before the doomed flight, on Oct. 28, when a pilot flying the same aircraft on a different route, from Bali to Jakarta, reported problems with it. The pilot on the crashed Lion Air flight had asked shortly after takeoff to return to the airport in Jakarta but lost contact with air traffic controllers afterward.
At a news conference on Wednesday evening in Jakarta, accident investigators showed reporters the AOA sensor that was removed from the aircraft on Oct. 28. The small black cylinder with a fin that protrudes from the side of the aircraft near the cockpit was wrapped in a clear plastic bag.
Indonesian authorities would provide Boeing with information from the pilot who flew with the problematic sensor so that it could be shared with other airlines in case they faced similar difficulties, said Nurcahyo Utomo, an accident investigator with the National Transportation Safety Committee.
Ony Suryo Wibowo, another investigator, said that it was too early to say definitively what caused the crash.
“We cannot conclude much this early in the investigation,” he said. The full investigation could take up to 12 months, he added.
[Divers find ‘black box’ from wreckage of Indonesian Lion Air jet]
The Boeing 737 Max 8 jets are among the manufacturer’s newest models and have been snapped up by airliners in booming aviation markets, including Indonesia and India. More than 200 of the planes are in service around the world, billed as the most advanced of the popular 737 jets.
The two Indonesian airlines that fly the Boeing 737 Max 8 planes, national carrier Garuda and Lion Air, which operates 10 of these planes, both declined to comment on the bulletin. Indonesian officials say that all 11 such aircraft have been tested for airworthiness and have been declared safe to fly.
A Lion Air flight scheduled to depart from the city of Bengkulu on the west coast of the island of Sumatra at 6:20 local time on Wednesday clipped a light pole causing a gash in the airplane’s wing. The flight, with 143 people on board, was taxing for takeoff heading to Jakarta when the accident occurred, the company said in a statement. No one was injured and passengers were redirected on another flight.
On Wednesday, the Indonesian transportation safety committee said it would re-create the flight to see what role the possibly malfunctioning sensor may have played in the crash. The re-creation will be done at Boeing’s facilities in Seattle and will replicate the flight’s actual path and journey. Boeing also said that it continues to provide support and technical assistance to the Indonesian investigators and other government authorities.
Experts have been puzzled at what could have caused the almost-new jet to go down in clear skies, unlike other major airplane disasters in which weather or older jets were major factors. The data from the flight recorder and Boeing’s statement have provided the first clues, but rescuers continue to search for the device that records voices in the plane’s cockpit. That recorder is expected to provide a clearer picture to investigators of the Lion Air flight’s final moments.
Search operations continue in the Java Sea off the coast of Jakarta. On Wednesday morning, members of Indonesia’s national search-and-rescue team used helicopters and boats as they looked for the cockpit voice recorder, more wreckage and bodies. Officials have recovered pieces of the plane, including the left engine and right landing gear, but have yet to locate the main fuselage.
A ship from the port city of Balikpapan on the island of Borneo with equipment to dig across the muddy seafloor in an effort to find the cockpit voice recorder would soon be dispatched to the crash scene, investigators said.
Even if the recorder was not found, investigators would eventually determine what was behind the accident, Nurcahyo said.
“There was a time when a plane crashed and we didn’t have an FDR, a CVR, didn’t find any casualties, we only found a wheel and a wing and we learned the cause [of the crash],” he said.
Shibani Mahtani in Singapore and Ainur Rohmah in Jakarta contributed to this report.
Read more:
Indonesian divers hear ‘pings’ as they zero in on Lion Air wreckage
Indonesian authorities recover human remains from area of plane crash
Today’s coverage from Post correspondents around the world
Like Washington Post World on Facebook and stay updated on foreign news
https://www.news.com.au/travel/trav...x/news-story/29023b68ae9038e337edc5a951218760
Lion Air crash: Hours of data recovered from plane’s black box
A KEY piece of evidence that could prove vital for revealing the safety of Boeing 737 MAX 8s is missing and cannot be found.
Staff writers, AP
News Corp Australia NetworkNovember 5, 201812:44pm
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The flight recorder from crashed Lion Air jet 610 has been found
DIVING teams searching for the Lion Air plane wreckage have lost the signal from the aircraft’s cockpit voice recorder, a vital clue in determining what happened.
Muhammad Syaugi, head of Indonesia’s Search and Rescue Agency, Basarnas, said a “ping” from the recorder was heard on Saturday but “we don’t hear the ping signal today”, he told reporters yesterday.
“We checked that spot, located around 50 metres from the location of finding the first black box. But we can’t find the CVR (cockpit voice recorder) yet,” Syaugi said.
CNN reports that finding the CVR is fundamental for investigators to figure out whether the fatal crash has implications for other airlines who operate the same plane.
It’s understood Virgin Australia has 30 Boeing 737 MAX 8 planes on order, with the first of them due to arrive in November next year.
The Lion Air Boeing 737 MAX 8 jet crashed just minutes after takeoff from Jakarta on October 29, killing all 189 people on board in the country’s worst airline disaster since 1997.
MORE: Diver dies in Lion Air plane crash search
Sixty-nine hours of flight data was downloaded from the jet’s flight data recorder, including from its fatal flight, JT610. Picture: AFPSource:AFP
Earlier, investigators succeeded in retrieving hours of data from the downed Lion Air jet’s flight recorder - different to the cockpit voice recorder - as Indonesian authorities extended the search at sea for victims and debris.
National Transportation Safety Committee deputy chairman Haryo Satmiko told a news conference that 69 hours of flight data was downloaded from the recorder, including its fatal flight, JT610.
What exactly went wrong has baffled aviation experts so far but the flight data recovered can hopefully provide some answers.
The first black box, the flight data recorder, was recovered by divers on Thursday in damaged condition and investigators said it required special handling to retrieve its information.
The second black box, the cockpit voice recorder, has not been recovered but searchers are focusing on a particular area based on another, albeit weak, locator signal.
National Search and Rescue Agency chief Muhammad Syaugi said the search operation, now in its 7th day and involving hundreds of personnel and dozens of ships, would continue for another three days.
On of the divers, volunteer diver Syahrul Anto, tragically died during the mammoth search effort. Picture: APSource:AP
Mr Syaugi paid tribute to a volunteer diver, Syahrul Anto, who died during the search effort on Friday.
The family of the 48-year-old refused an autopsy and he was buried in Surabaya on Saturday.
More than 100 body bags of human remains had been recovered from the wreckage.
Mr Syaugi said the number would continue to increase and remains were also now washing up on land.
He said weak signals, potentially from the cockpit voice recorder, were traced to a location but an object hadn’t been found yet.
The device is thought to be around 50 metres from the main search area, where the water is only 30m deep, but ocean currents and m&d on the sea bed that is more than one-metre deep have complicated search efforts.
Officials move pieces of wreckage recovered from the crashed Lion Air jet for further investigation in Jakarta. They are still looking for the plane’s fuselage. Picture: APSource:AP
Flight tracking websites show the plane had erratic speed and altitude during its 13 minute flight and a previous flight the day before from Bali to Jakarta.
Passengers on the previous flight from Bali reported terrifying descents and in both cases the different cockpit crews requested to return to their departure airport shortly after takeoff.
Lion Air has claimed an undisclosed technical problem was fixed after the Bali fight.
Mr Syaugi said a considerable amount of aircraft “skin” was found on the sea floor but not a large intact part of its fuselage, as he’d indicated was possible on Saturday.
He and other top officials, including the military chief, plan to meet with families on Monday to explain the search operation.
Family members grieve after police handed over the remains of their relatives who died in the crash. All 189 people on board died. Picture: GettySource:Getty Images
The Lion Air crash is the worst airline disaster in Indonesia since 1997, when 234 people died on a Garuda flight near Medan.
In December 2014, an AirAsia flight from Surabaya to Singapore plunged into the sea, killing all 162 on board.
Indonesian airlines were barred in 2007 from flying to Europe because of safety concerns, though several were allowed to resume services in the following decade. The ban was completely lifted in June. The US lifted a decade-long ban in 2016.
Lion Air is one of Indonesia’s youngest airlines but has grown rapidly, flying to dozens of domestic and international destinations. It has been expanding aggressively in Southeast Asia, a fast-growing region of more than 600 million people.
https://www.insurancejournal.com/news/international/2018/11/07/506914.htm
Update: Boeing Issues Warning About 737 Max Jet in Response to Lion Air Crash
By Alan Levin, Julie Johnsson and Harry Suhartono | November 7, 2018
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Boeing Co. is advising airlines on procedures to deal with false readings from an plane sensor that authorities say malfunctioned on a 737 Max jet that crashed off the Indonesian coast over a week ago.
The operations-manual bulletin was issued Tuesday, Boeing 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. That sensor is intended to maintain air flow over a plane’s wings but if it malfunctions can lead to an aerodynamic stall — which can cause aircraft to abruptly dive.
Bloomberg News earlier reported that Boeing was said to be preparing to issue an alert to operators of the 737 Max jet in response to the investigation into the Oct. 29 crash of the Lion Air plane, which saw 189 people killed.
The bulletin is based on preliminary findings from the Lion Air disaster, a person familiar with the matter earlier told Bloomberg. Under some circumstances, such as when pilots are flying manually, the Max jets will automatically try to push down the nose if they detect that an aerodynamic stall is possible, the person said. One of the critical ways a plane determines if a stall is imminent is the angle of attack measurement.
The Lion Air 737 Max 8 jetliner plunged into the Java Sea minutes after takeoff from Jakarta airport, nosing downward so suddenly that it may have hit speeds of 600 miles an hour before slamming into the water. Moments earlier, the pilots radioed a request to return to Jakarta to land, but never turned back toward the airport, according to Indonesia’s National Transportation Safety Committee and flight-track data. The committee said the pilots were dealing with an erroneous airspeed indication.
The probe into what happened with the Lion Air plane “is ongoing and Boeing continues to cooperate fully and provide technical assistance at the request and under the direction of government authorities investigating the accident,” the company said in its statement.
Read more: Crashed Lion Air Jet Had Faulty Speed Readings on Last 4 Flights
The jet reported discrepancy in its angle of attack sensor during a flight from Bali to Jakarta the day before it crashed. The device was replaced in Bali after pilots reported a problem with airspeed reading, the Indonesian transportation safety regulator said Wednesday.
On Nov. 5, the agency called on Boeing and the U.S. National Transportation and Safety Board “to take necessary steps to prevent similar incidents, especially on the Boeing 737 Max, which number 200 aircraft all over the world.”
Boeing has delivered 219 Max planes — the latest and most advanced 737 jets — since the new models made their commercial debut last year with a Lion Air subsidiary. Boeing has more than 4,500 orders for the airliners, which feature larger engines, more aerodynamic wings and an upgraded cockpit with larger glass displays. The single-aisle family is Boeing’s biggest source of profit.
SilkAir, a unit of Singapore Airlines Ltd., said it has yet to receive the bulletin from Boeing, but it will comply with the advice once it gets it. A spokeswoman for FlyDubai said the carrier is aware of the notification and “looking at it right now.”
Aircraft and engine manufacturers routinely send bulletins to air carriers noting safety measures and maintenance actions they should take, most of them relatively routine. But the urgency of a fatal accident can trigger a flurry of such notices.
After an engine on a Southwest Airlines Co. plane fractured earlier this year over Pennsylvania, killing a passenger, CFM International Inc. issued multiple bulletins to operators of its CFM56-7B power plants.
Aviation regulators such as the U.S. Federal Aviation Administration and the European Aviation Safety Agency often follow such actions by mandating that carriers follow the bulletins.
Pilots raise and lower the nose of Boeing jetliners by pushing and pulling on a yoke in the cockpit, which controls panels at the tail known as elevators. In addition, a system known as elevator trim can be changed to prompt nose-up or nose-down movement.
The angle of attack readings are fed into a computer that in some cases will attempt to push down the nose using the elevator trim system. In the early days of the jet age, the elevator trim system was linked to several accidents. If pilots aren’t careful, they can cause severe nose-down trim settings that make it impossible to level a plane.
Such an issue arose in 2016 at Rostov-on-Don Airport in Russia when a FlyDubai 737-800 nosed over and slammed into the runway at a steep angle, according to an interim report by Russian investigators. That case didn’t involve the angle-of-attack system. One of the pilots had trimmed the plane to push the nose down while trying to climb after aborting a landing, the report said. All 62 people on board died.
Related:
Copyright 2018 Bloomberg.
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印尼航班坠毁前经历错误角度剧烈俯冲！波音将警告此机型运营商
2018-11-07 19:04
11月7日，印尼狮航JT610坠毁事故发生第10天，据航空业内人士透露，波音公司将向全球737MAX运营商发布一份公告，警告737 MAX系列飞机的飞行控制系统读数错误，可能会导致飞机自行大角度俯冲并坠落。
印尼坠毁航班机型为波音737 MAX8
据了解，该份公告来自于印尼狮航JT610航班坠毁事故。10月29日上午，携189人的印尼狮航JT610航班在起飞13分钟后在爪哇海域坠毁。该航班执飞机型为波音737MAX8，机龄0.3年。印尼航空安全官员表示，JT610航班在坠毁前“经历了错误的角度剧烈俯冲。”
据印尼狮航官网消息，该架飞机于2018年生产，于今年8月15日首飞，JT610的前序航班在当地时间28日降落时，曾报告过“技术故障”。6日，参与调查的美国国家运输安全委员会披露，JT610的失事前的4次飞行空速表均出现问题。最新调查显示，JT610在高速坠落期间并未解体，官方称飞机发动机在“接触到海面之前仍在运转”。
7日，据了解该公告的官员称，波音公司同时告知相关运营商，上述俯冲角度问题只会在手动飞行时发生。并称错误地输入迎角传感器（AOA），会导致飞机倾斜倾斜10秒。
波音737 MAX系列飞机。来源：波音公司官网。
据了解，该份公告将在今天上午通知到737MAX的各个运营商。接下来，该公告或将美国联邦航空管理局(FAA）正式发布。波音公司目前并未对此事作出回应。南都记者查询波音官网显示，737MAX系列的运营商分布广泛，国内多家航空公司均持有波音737MAX系列飞机。
当地：搜救工作延长至本周五
据当地媒体报道，原定于在11月7日结束的搜救工作，将持续至本周五，由220人、60名潜水员仍将继续在事发海域搜救。但当地红十字会、美国海军以及其他商船，将不再参与搜救。
截止11月7日，当地已经打捞起飞行记录仪器，但另一“黑闸子”——驾驶舱录音器仍未找到。当地负责搜救的官员表示，接下来的搜救重点仍是寻找遇难者遗体与驾驶舱录音器。
采写：南都记者 黄驰波
Southern Metropolis Daily
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Before the Indonesian flight crashed, it experienced a sharp dip in the wrong angle! Boeing will warn this model operator
2018-11-07 19:04
On November 7, the 10th day of the Indonesian Lion Air JT610 crash, according to aviation industry insiders, Boeing will issue a notice to the global 737MAX operator to warn that the flight control system of the 737 MAX series is incorrectly read, which may result in The aircraft swooped and fell at a large angle.
The Indonesian crash flight model is Boeing 737 MAX8
It is understood that the announcement came from the crash of the Indonesian Lion Air JT610 flight. On the morning of October 29, the Indonesian Lion Air JT610 flight with 189 people crashed in the Java waters after 13 minutes of takeoff. The flight type is Boeing 737MAX8, which is 0.3 years old. Indonesian aviation security officials said that the JT610 flight "had experienced a sharp dip in the wrong direction before the crash."
Search and rescue site. Source network
According to Indonesian Lion Airlines official website, the aircraft was produced in 2018 and first flew on August 15 this year. The JT610's pre-order flight reported a "technical failure" when it landed on the 28th local time. On the 6th, the National Transportation Safety Board, which participated in the investigation, disclosed that there were problems with the four flight airspeed meters before the JT610 crash. According to the latest survey, the JT610 did not disintegrate during the high-speed fall. The official said that the aircraft engine was still running before it came into contact with the sea.
On the 7th, officials familiar with the announcement said that Boeing also informed the relevant operators that the above-mentioned subduction angle problem would only occur during manual flight. It is said that the wrong input of the angle of attack sensor (AOA) will cause the aircraft to tilt for 10 seconds.
Boeing 737 MAX series aircraft. Source: Boeing's official website.
It is understood that the announcement will be notified to the various operators of 737MAX this morning. Next, the announcement may be officially released by the Federal Aviation Administration (FAA). Boeing has not responded to this matter at the moment. Southern reporters asked Boeing's official website to show that the 737MAX series of operators are widely distributed, and many domestic airlines hold Boeing 737MAX series aircraft.
Local: Search and rescue work extended to this Friday
According to local media reports, the search and rescue work scheduled to end on November 7th will last until this Friday, and 220 people and 60 divers will continue to search and rescue the incident. However, the local Red Cross, the US Navy and other merchant ships will no longer participate in search and rescue.
Search and rescue site. Source network
As of November 7, the local has recovered the flight recording instrument, but another "black brake" - the cockpit recorder has not been found. Local officials responsible for search and rescue said that the next search and rescue focus is still to find the remains of the victims and the cockpit recorder.
Written: Southern Reporter Huang Chibo
Boeing issues warning on potential instrument malfunction after Indonesia crash
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Days of extreme weather have wreaked havoc across Italy, killing more than two dozen people and destroying infrastructure. (Jason Aldag /The Washington Post)
By Timothy McLaughlin and
Stanley Widianto
November 7 at 8:17 AM
JAKARTA, Indonesia — Airplane manufacturer Boeing said Wednesday that it has issued a bulletin to airlines worldwide warning of erroneous readings from flight-control software on its planes, after an almost-new Lion Air jetliner crashed into the sea soon after takeoff, killing the 189 people on board.
Boeing, which is assisting in an investigation into what went wrong in the Oct. 29 crash of one of its new 737 Max 8 jets, said in a statement that it issued the bulletin Tuesday as “part of its usual process.”
The bulletin informed airline operators of what to do if they receive false readings from flight-control software that measures the angle of the plane and alerted flight crews of the procedure to follow.
The bulletin from Boeing was the first indication that an error with the aircraft’s systems may have caused problems for the Lion Air flight, which took off from Jakarta. Instead of a smooth takeoff, the plane’s altitude fluctuated dramatically, and the plane increased in speed before nosediving into the Java Sea 13 minutes later.
Indonesian investigators have recovered the plane’s flight data recorder, which showed that the plane’s airspeed indicator malfunctioned on its last four flights.
“The Indonesian National Transportation Safety Committee has indicated that Lion Air Flight 610 experienced erroneous input from one of its AOA (Angle of Attack) sensors,” Boeing said in the statement. A misreading in the sensor can cause the plane to dive suddenly.
The crash of Lion Air Flight 610 is just the latest in a string of incidents for the airline
Since it began operations in 2000, the Indonesian budget carrier Lion Air has had more than a dozen safety incidents, including fatal accidents. (Jason Aldag /The Washington Post)
Indonesian investigators said Wednesday that an AOA sensor on the jet was replaced the day before the doomed flight, on Oct. 28, when a pilot flying the same aircraft on a different route, from Bali to Jakarta, reported problems with it. The pilot on the crashed Lion Air flight had asked shortly after takeoff to return to the airport in Jakarta but lost contact with air traffic controllers afterward.
At a news conference on Wednesday evening in Jakarta, accident investigators showed reporters the AOA sensor that was removed from the aircraft on Oct. 28. The small black cylinder with a fin that protrudes from the side of the aircraft near the cockpit was wrapped in a clear plastic bag.
Indonesian authorities would provide Boeing with information from the pilot who flew with the problematic sensor so that it could be shared with other airlines in case they faced similar difficulties, said Nurcahyo Utomo, an accident investigator with the National Transportation Safety Committee.
Ony Suryo Wibowo, another investigator, said that it was too early to say definitively what caused the crash.
“We cannot conclude much this early in the investigation,” he said. The full investigation could take up to 12 months, he added.
[Divers find ‘black box’ from wreckage of Indonesian Lion Air jet]
The Boeing 737 Max 8 jets are among the manufacturer’s newest models and have been snapped up by airliners in booming aviation markets, including Indonesia and India. More than 200 of the planes are in service around the world, billed as the most advanced of the popular 737 jets.
The two Indonesian airlines that fly the Boeing 737 Max 8 planes, national carrier Garuda and Lion Air, which operates 10 of these planes, both declined to comment on the bulletin. Indonesian officials say that all 11 such aircraft have been tested for airworthiness and have been declared safe to fly.
A Lion Air flight scheduled to depart from the city of Bengkulu on the west coast of the island of Sumatra at 6:20 local time on Wednesday clipped a light pole causing a gash in the airplane’s wing. The flight, with 143 people on board, was taxing for takeoff heading to Jakarta when the accident occurred, the company said in a statement. No one was injured and passengers were redirected on another flight.
On Wednesday, the Indonesian transportation safety committee said it would re-create the flight to see what role the possibly malfunctioning sensor may have played in the crash. The re-creation will be done at Boeing’s facilities in Seattle and will replicate the flight’s actual path and journey. Boeing also said that it continues to provide support and technical assistance to the Indonesian investigators and other government authorities.
Experts have been puzzled at what could have caused the almost-new jet to go down in clear skies, unlike other major airplane disasters in which weather or older jets were major factors. The data from the flight recorder and Boeing’s statement have provided the first clues, but rescuers continue to search for the device that records voices in the plane’s cockpit. That recorder is expected to provide a clearer picture to investigators of the Lion Air flight’s final moments.
Search operations continue in the Java Sea off the coast of Jakarta. On Wednesday morning, members of Indonesia’s national search-and-rescue team used helicopters and boats as they looked for the cockpit voice recorder, more wreckage and bodies. Officials have recovered pieces of the plane, including the left engine and right landing gear, but have yet to locate the main fuselage.
A ship from the port city of Balikpapan on the island of Borneo with equipment to dig across the muddy seafloor in an effort to find the cockpit voice recorder would soon be dispatched to the crash scene, investigators said.
Even if the recorder was not found, investigators would eventually determine what was behind the accident, Nurcahyo said.
“There was a time when a plane crashed and we didn’t have an FDR, a CVR, didn’t find any casualties, we only found a wheel and a wing and we learned the cause [of the crash],” he said.
Shibani Mahtani in Singapore and Ainur Rohmah in Jakarta contributed to this report.
Read more:
Indonesian divers hear ‘pings’ as they zero in on Lion Air wreckage
Indonesian authorities recover human remains from area of plane crash
Today’s coverage from Post correspondents around the world
Like Washington Post World on Facebook and stay updated on foreign news
https://www.news.com.au/travel/trav...x/news-story/29023b68ae9038e337edc5a951218760
Lion Air crash: Hours of data recovered from plane’s black box
A KEY piece of evidence that could prove vital for revealing the safety of Boeing 737 MAX 8s is missing and cannot be found.
Staff writers, AP
News Corp Australia NetworkNovember 5, 201812:44pm
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The flight recorder from crashed Lion Air jet 610 has been found
DIVING teams searching for the Lion Air plane wreckage have lost the signal from the aircraft’s cockpit voice recorder, a vital clue in determining what happened.
Muhammad Syaugi, head of Indonesia’s Search and Rescue Agency, Basarnas, said a “ping” from the recorder was heard on Saturday but “we don’t hear the ping signal today”, he told reporters yesterday.
“We checked that spot, located around 50 metres from the location of finding the first black box. But we can’t find the CVR (cockpit voice recorder) yet,” Syaugi said.
CNN reports that finding the CVR is fundamental for investigators to figure out whether the fatal crash has implications for other airlines who operate the same plane.
It’s understood Virgin Australia has 30 Boeing 737 MAX 8 planes on order, with the first of them due to arrive in November next year.
The Lion Air Boeing 737 MAX 8 jet crashed just minutes after takeoff from Jakarta on October 29, killing all 189 people on board in the country’s worst airline disaster since 1997.
MORE: Diver dies in Lion Air plane crash search
Sixty-nine hours of flight data was downloaded from the jet’s flight data recorder, including from its fatal flight, JT610. Picture: AFPSource:AFP
Earlier, investigators succeeded in retrieving hours of data from the downed Lion Air jet’s flight recorder - different to the cockpit voice recorder - as Indonesian authorities extended the search at sea for victims and debris.
National Transportation Safety Committee deputy chairman Haryo Satmiko told a news conference that 69 hours of flight data was downloaded from the recorder, including its fatal flight, JT610.
What exactly went wrong has baffled aviation experts so far but the flight data recovered can hopefully provide some answers.
The first black box, the flight data recorder, was recovered by divers on Thursday in damaged condition and investigators said it required special handling to retrieve its information.
The second black box, the cockpit voice recorder, has not been recovered but searchers are focusing on a particular area based on another, albeit weak, locator signal.
National Search and Rescue Agency chief Muhammad Syaugi said the search operation, now in its 7th day and involving hundreds of personnel and dozens of ships, would continue for another three days.
On of the divers, volunteer diver Syahrul Anto, tragically died during the mammoth search effort. Picture: APSource:AP
Mr Syaugi paid tribute to a volunteer diver, Syahrul Anto, who died during the search effort on Friday.
The family of the 48-year-old refused an autopsy and he was buried in Surabaya on Saturday.
More than 100 body bags of human remains had been recovered from the wreckage.
Mr Syaugi said the number would continue to increase and remains were also now washing up on land.
He said weak signals, potentially from the cockpit voice recorder, were traced to a location but an object hadn’t been found yet.
The device is thought to be around 50 metres from the main search area, where the water is only 30m deep, but ocean currents and m&d on the sea bed that is more than one-metre deep have complicated search efforts.
Officials move pieces of wreckage recovered from the crashed Lion Air jet for further investigation in Jakarta. They are still looking for the plane’s fuselage. Picture: APSource:AP
Flight tracking websites show the plane had erratic speed and altitude during its 13 minute flight and a previous flight the day before from Bali to Jakarta.
Passengers on the previous flight from Bali reported terrifying descents and in both cases the different cockpit crews requested to return to their departure airport shortly after takeoff.
Lion Air has claimed an undisclosed technical problem was fixed after the Bali fight.
Mr Syaugi said a considerable amount of aircraft “skin” was found on the sea floor but not a large intact part of its fuselage, as he’d indicated was possible on Saturday.
He and other top officials, including the military chief, plan to meet with families on Monday to explain the search operation.
Family members grieve after police handed over the remains of their relatives who died in the crash. All 189 people on board died. Picture: GettySource:Getty Images
The Lion Air crash is the worst airline disaster in Indonesia since 1997, when 234 people died on a Garuda flight near Medan.
In December 2014, an AirAsia flight from Surabaya to Singapore plunged into the sea, killing all 162 on board.
Indonesian airlines were barred in 2007 from flying to Europe because of safety concerns, though several were allowed to resume services in the following decade. The ban was completely lifted in June. The US lifted a decade-long ban in 2016.
Lion Air is one of Indonesia’s youngest airlines but has grown rapidly, flying to dozens of domestic and international destinations. It has been expanding aggressively in Southeast Asia, a fast-growing region of more than 600 million people.
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Update: Boeing Issues Warning About 737 Max Jet in Response to Lion Air Crash
By Alan Levin, Julie Johnsson and Harry Suhartono | November 7, 2018
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Boeing Co. is advising airlines on procedures to deal with false readings from an plane sensor that authorities say malfunctioned on a 737 Max jet that crashed off the Indonesian coast over a week ago.
The operations-manual bulletin was issued Tuesday, Boeing 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. That sensor is intended to maintain air flow over a plane’s wings but if it malfunctions can lead to an aerodynamic stall — which can cause aircraft to abruptly dive.
Bloomberg News earlier reported that Boeing was said to be preparing to issue an alert to operators of the 737 Max jet in response to the investigation into the Oct. 29 crash of the Lion Air plane, which saw 189 people killed.
The bulletin is based on preliminary findings from the Lion Air disaster, a person familiar with the matter earlier told Bloomberg. Under some circumstances, such as when pilots are flying manually, the Max jets will automatically try to push down the nose if they detect that an aerodynamic stall is possible, the person said. One of the critical ways a plane determines if a stall is imminent is the angle of attack measurement.
The Lion Air 737 Max 8 jetliner plunged into the Java Sea minutes after takeoff from Jakarta airport, nosing downward so suddenly that it may have hit speeds of 600 miles an hour before slamming into the water. Moments earlier, the pilots radioed a request to return to Jakarta to land, but never turned back toward the airport, according to Indonesia’s National Transportation Safety Committee and flight-track data. The committee said the pilots were dealing with an erroneous airspeed indication.
The probe into what happened with the Lion Air plane “is ongoing and Boeing continues to cooperate fully and provide technical assistance at the request and under the direction of government authorities investigating the accident,” the company said in its statement.
Read more: Crashed Lion Air Jet Had Faulty Speed Readings on Last 4 Flights
The jet reported discrepancy in its angle of attack sensor during a flight from Bali to Jakarta the day before it crashed. The device was replaced in Bali after pilots reported a problem with airspeed reading, the Indonesian transportation safety regulator said Wednesday.
On Nov. 5, the agency called on Boeing and the U.S. National Transportation and Safety Board “to take necessary steps to prevent similar incidents, especially on the Boeing 737 Max, which number 200 aircraft all over the world.”
Boeing has delivered 219 Max planes — the latest and most advanced 737 jets — since the new models made their commercial debut last year with a Lion Air subsidiary. Boeing has more than 4,500 orders for the airliners, which feature larger engines, more aerodynamic wings and an upgraded cockpit with larger glass displays. The single-aisle family is Boeing’s biggest source of profit.
SilkAir, a unit of Singapore Airlines Ltd., said it has yet to receive the bulletin from Boeing, but it will comply with the advice once it gets it. A spokeswoman for FlyDubai said the carrier is aware of the notification and “looking at it right now.”
Aircraft and engine manufacturers routinely send bulletins to air carriers noting safety measures and maintenance actions they should take, most of them relatively routine. But the urgency of a fatal accident can trigger a flurry of such notices.
After an engine on a Southwest Airlines Co. plane fractured earlier this year over Pennsylvania, killing a passenger, CFM International Inc. issued multiple bulletins to operators of its CFM56-7B power plants.
Aviation regulators such as the U.S. Federal Aviation Administration and the European Aviation Safety Agency often follow such actions by mandating that carriers follow the bulletins.
Pilots raise and lower the nose of Boeing jetliners by pushing and pulling on a yoke in the cockpit, which controls panels at the tail known as elevators. In addition, a system known as elevator trim can be changed to prompt nose-up or nose-down movement.
The angle of attack readings are fed into a computer that in some cases will attempt to push down the nose using the elevator trim system. In the early days of the jet age, the elevator trim system was linked to several accidents. If pilots aren’t careful, they can cause severe nose-down trim settings that make it impossible to level a plane.
Such an issue arose in 2016 at Rostov-on-Don Airport in Russia when a FlyDubai 737-800 nosed over and slammed into the runway at a steep angle, according to an interim report by Russian investigators. That case didn’t involve the angle-of-attack system. One of the pilots had trimmed the plane to push the nose down while trying to climb after aborting a landing, the report said. All 62 people on board died.
Related:
- Data Recorder Shows Crashed Boeing 737 Max Had Airspeed Issues on Last 4 Flights
- Lion Air Jet’s Audio Black Box Could Hold Key to Mystery of Doomed Flight
- Update: Divers Resume Search for 2nd Black Box from Crashed Lion Air Jet
- Crashed Lion Air Boeing Jet Previously Had Problems with Altitude, Speed Sensors
- Black Box from Crashed Lion Air Jet Retrieved from Wreckage by Divers
- Search Team May Have Located Main Wreckage of Lion Air’s Crashed Jet
- Update: Lion Air Jet Plunged at 350 Miles Per Hour Before Crash, Data Show
- Boeing 737 Max, Operated by Indonesia’s Lion Air, Crashes with 189 on Board
Copyright 2018 Bloomberg.
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印尼航班坠毁前经历错误角度剧烈俯冲！波音将警告此机型运营商
2018-11-07 19:04
11月7日，印尼狮航JT610坠毁事故发生第10天，据航空业内人士透露，波音公司将向全球737MAX运营商发布一份公告，警告737 MAX系列飞机的飞行控制系统读数错误，可能会导致飞机自行大角度俯冲并坠落。
印尼坠毁航班机型为波音737 MAX8
据了解，该份公告来自于印尼狮航JT610航班坠毁事故。10月29日上午，携189人的印尼狮航JT610航班在起飞13分钟后在爪哇海域坠毁。该航班执飞机型为波音737MAX8，机龄0.3年。印尼航空安全官员表示，JT610航班在坠毁前“经历了错误的角度剧烈俯冲。”
搜救现场。来源网络
据印尼狮航官网消息，该架飞机于2018年生产，于今年8月15日首飞，JT610的前序航班在当地时间28日降落时，曾报告过“技术故障”。6日，参与调查的美国国家运输安全委员会披露，JT610的失事前的4次飞行空速表均出现问题。最新调查显示，JT610在高速坠落期间并未解体，官方称飞机发动机在“接触到海面之前仍在运转”。
7日，据了解该公告的官员称，波音公司同时告知相关运营商，上述俯冲角度问题只会在手动飞行时发生。并称错误地输入迎角传感器（AOA），会导致飞机倾斜倾斜10秒。
波音737 MAX系列飞机。来源：波音公司官网。
据了解，该份公告将在今天上午通知到737MAX的各个运营商。接下来，该公告或将美国联邦航空管理局(FAA）正式发布。波音公司目前并未对此事作出回应。南都记者查询波音官网显示，737MAX系列的运营商分布广泛，国内多家航空公司均持有波音737MAX系列飞机。
当地：搜救工作延长至本周五
据当地媒体报道，原定于在11月7日结束的搜救工作，将持续至本周五，由220人、60名潜水员仍将继续在事发海域搜救。但当地红十字会、美国海军以及其他商船，将不再参与搜救。
搜救现场。来源网络
截止11月7日，当地已经打捞起飞行记录仪器，但另一“黑闸子”——驾驶舱录音器仍未找到。当地负责搜救的官员表示，接下来的搜救重点仍是寻找遇难者遗体与驾驶舱录音器。
采写：南都记者 黄驰波
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Before the Indonesian flight crashed, it experienced a sharp dip in the wrong angle! Boeing will warn this model operator
2018-11-07 19:04
On November 7, the 10th day of the Indonesian Lion Air JT610 crash, according to aviation industry insiders, Boeing will issue a notice to the global 737MAX operator to warn that the flight control system of the 737 MAX series is incorrectly read, which may result in The aircraft swooped and fell at a large angle.
The Indonesian crash flight model is Boeing 737 MAX8
It is understood that the announcement came from the crash of the Indonesian Lion Air JT610 flight. On the morning of October 29, the Indonesian Lion Air JT610 flight with 189 people crashed in the Java waters after 13 minutes of takeoff. The flight type is Boeing 737MAX8, which is 0.3 years old. Indonesian aviation security officials said that the JT610 flight "had experienced a sharp dip in the wrong direction before the crash."
Search and rescue site. Source network
According to Indonesian Lion Airlines official website, the aircraft was produced in 2018 and first flew on August 15 this year. The JT610's pre-order flight reported a "technical failure" when it landed on the 28th local time. On the 6th, the National Transportation Safety Board, which participated in the investigation, disclosed that there were problems with the four flight airspeed meters before the JT610 crash. According to the latest survey, the JT610 did not disintegrate during the high-speed fall. The official said that the aircraft engine was still running before it came into contact with the sea.
On the 7th, officials familiar with the announcement said that Boeing also informed the relevant operators that the above-mentioned subduction angle problem would only occur during manual flight. It is said that the wrong input of the angle of attack sensor (AOA) will cause the aircraft to tilt for 10 seconds.
Boeing 737 MAX series aircraft. Source: Boeing's official website.
It is understood that the announcement will be notified to the various operators of 737MAX this morning. Next, the announcement may be officially released by the Federal Aviation Administration (FAA). Boeing has not responded to this matter at the moment. Southern reporters asked Boeing's official website to show that the 737MAX series of operators are widely distributed, and many domestic airlines hold Boeing 737MAX series aircraft.
Local: Search and rescue work extended to this Friday
According to local media reports, the search and rescue work scheduled to end on November 7th will last until this Friday, and 220 people and 60 divers will continue to search and rescue the incident. However, the local Red Cross, the US Navy and other merchant ships will no longer participate in search and rescue.
Search and rescue site. Source network
As of November 7, the local has recovered the flight recording instrument, but another "black brake" - the cockpit recorder has not been found. Local officials responsible for search and rescue said that the next search and rescue focus is still to find the remains of the victims and the cockpit recorder.
Written: Southern Reporter Huang Chibo
