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"Given that two accidents both involved newly delivered Boeing 737-8 planes and happened during take-off phase, they have some degree of similarity," the Civil Aviation Administration of China said Monday.
While Boeing has sent an investigative team to get to the bottom of the tragedy, Swedish flight-tracking website flightradar24 said the jet displayed an "unstable vertical speed" during its takeoff.
The Ethiopian Airlines Group has four 737 MAX planes left in its fleet, and orders for an additional 25 placed with Boeing. The decision to ground the fleet until further notice came after Flight 302 crashed on Sunday morning, minutes after takeoff, killing everyone on board.Hold the champagne! Back home at Boeing, answers to the dilemma of sudden crashes and faulty operation systems have taken precedence over celebratory festivities. Not a good time to debut Boeing's new 777x wide body aircraft!
The latest crash of a Boeing 737 MAX 8 operated by Ethiopian Airlines has sent shares of the world's largest aerospace group plummeting 12 percent after the opening bell on Wall Street. The shares bounced back to trade at $390.18 at 14:20 GMT, still marking a significant drop of nearly 8 percent.See also: Ethiopian Airlines brand new Boeing 737 MAX crashes on way to Kenya with 157 people on board - UPDATE
The latest stock plunge wiped out over $28 billion from Boeing's market value, sending the Dow Jones Industrial Average down 140 points during early trading in New York.
US aviation agency gives nod to the 737 MAX as Boeing struggles to contain Ethiopia crash falloutRT further reports on Boeing's plan for an update rollout, and hints at why the possible technical fault that caused the crash in Indonesia:
The US Federal Aviation Administration has reaffirmed the airworthiness of the Boeing 737 MAX in the wake of the Ethiopian Airlines crash that killed 157 people. It comes after several countries and airlines grounded the aircraft.
There have been mounting concerns about whether Boeing's best-selling single-aisle airliner is safe to fly, after crashes in Indonesia last October and in Ethiopia last week that dealt a heavy blow to its reputation. In a statement on Monday, the FAA said that, while "external reports are drawing similarities" between the accidents, which killed 346 people in total, it's too early to judge if a common issue is to blame.
"This investigation has just begun and to date we have not been provided data to draw any conclusions or take any actions," the agency said.
The FAA gave Boeing until April to update its software and the maneuvering system, as well as training requirements and flight crew manuals, to reflect the changes. In a separate statement on Monday, Boeing gave an assurance it would unveil a flight control software upgrade in the "coming weeks."
While the FAA opted to proceed with caution, aviation authorities in China, Indonesia and Ethiopia, have rushed to ground their respective fleets of the US aircraft manufacturer's most popular plane, as a precaution.
Stock markets have also been reacting to Boeing's woes, its shares sliding more than 5 percent on Monday.
With no definite conclusions reached from last October's Lion Air crash yet, let alone last week's Ethiopian Airlines disaster, speculation has been rife, with some experts suggesting that a common technical fault had doomed both planes.
What do the incidents have in common?
Desmond Ross, aviation security expert, former pilot and CEO of DRA consultancy, told RT that, although a complete set of data is not available on either of the crashes, "they do look very similar."
There have been damning reports that the Ethiopian jet had experienced a violent nosedive shortly after departing from Addis Ababa airport this week, and that this incident was "possibly caused by similar issues to that of the ... Lion Air crash."
The brand-new jet is marketed as more fuel-efficient and technically superior to its direct competitor, the Airbus A320neo family. To beat the European jet, Boeing had installed larger engines that were moved a bit further forward, tilting the balance of the aircraft. To compensate for this, the company altered on-board software and the flight control system, Ross explained.
What makes the 737 MAX particularly (un)safe?
The MAX-series jet has not yet become the world's most dangerous plane to fly. Other models, like the de Havilland Comet, the first commercial plane, or Tupolev Tu-154, the working horse of Soviet civil aviation, had poorer safety records. But allegations quickly spread that the Lion Air crash last year could have been prevented had Boeing tackled the technical glitch.
Nevertheless, shortly after the incident Boeing released an update to pilots flying the 737 MAX airliner, warning of the issue. But it could be that some pilots "have not been properly briefed or properly trained," Ross speculated.
Boeing goes into damage control
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In the letter to employees that circulated on social media shortly after the FAA announcement, Muilenburg argued that "speculating about the cause of the accident or discussing it without the necessary facts is not appropriate and could compromise the integrity of the investigation," while highlighting the company's vast output and its impressive track record of having delivered "more than 370 737 MAX airplanes to 47 customers."
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Boeing pledges to roll out software upgrade for 737 MAX in 'coming weeks' after FAA push
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The US-based aerospace company has said that it had been developing "the flight control software enhancement" for several months since an identical Boeing model had plunged into the Java Sea off the cost of Indonesia in October, killing 189 passengers and crew.
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While reaffirming 737 MAX's airworthiness, the FAA demanded Boeing make mandatory improvements to its flight control software, which is alleged to have malfunctioned and become the ultimate cause of the Lion Air Flight 610 crash on October, 29. According to a preliminary report into that tragedy, pilots failed to tackle the automatic anti-stall system due to it receiving erroneous readings from a sensor that measures the angle between the wing and the oncoming air flow, which forced the plane into a nosedive.
It was reported back in November that Boeing was ready to unveil a software fix within six to eight weeks.
[Link] Brazilian airline Gol grounds its Boeing 737 MAX 8 aircraft
"Brazilian airline Gol announced on Monday it was grounding its Boeing 737 MAX 8 aircraft following the Ethiopian Airlines crash involving the same model that left 157 people dead."Given security is the number one value at Gol... the company... is temporarily suspending its commercial operations with its 737 MAX 8 aircraft," said a Gol statement.Of Gol's 121 Boeing aircraft, with whom it has an exclusive agreement, seven are the 737 MAX 8 model."