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Ethopian Airlines Crashed - Another 737Max


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#41 xtemujin

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Posted 13 March 2019 - 08:49 PM

The flying public should also be aware that American Airlines’ Boeing 737 Max planes are unique. After the loss of Lion Air Flight 610, Boeing disclosed that the MCAS can be triggered by a single erroneous Angle of Attack (AOA) event. The two dozen 737 Max aircraft in the American Airlines fleet are the only ones equipped with two AOA displays, one for each pilot, providing an extra layer of awareness and warning.

 

https://www.alliedpi...-Boeing-737-Max



#42 David.W

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Posted 13 March 2019 - 09:15 PM

But the other 737 Max do not?



#43 flee

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Posted 14 March 2019 - 12:09 AM

Canada grounds Boeing 737 Max 8 following fatal crash

https://www.cbc.ca/n...crash-1.5054234

#44 BC Tam

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Posted 14 March 2019 - 06:54 AM

https://www.bbc.com/...siness-47562727
Boeing grounds entire crash aircraft fleet

All grounded now

#45 flee

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Posted 14 March 2019 - 07:26 AM

Finally, common sense prevailed!

#46 flee

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Posted 14 March 2019 - 09:59 PM

Russia suspends Boeing 737 MAX flights: Ifax

https://www.reuters....x-idUSKCN1QV1B7

#47 flee

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Posted 15 March 2019 - 12:54 AM

Picture of FDR

https://twitter.com/...221599735332864

#48 xtemujin

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Posted 15 March 2019 - 06:49 PM

Investigators of Ethiopian crash found piece of stabilizer with trim in unusual position similar to doomed Lion Air jet.
 


#49 KK Lee

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Posted 16 March 2019 - 07:19 PM

 

I don't think so, given that the FAA should & would know better seeing as they're the ones who certified it, and has a conduit to the investigation via the NTSB.

 

 

EASA suspends all Boeing 737 Max operations in Europe

https://www.easa.eur...erations-europe

 

That was Boeing’s chief executive, a frequent visitor to Trump properties, phoning Trump with a plea not to ground both the 737 Max 8 and Max 9.

 
That corporations make safety decisions for Trump (himself a failed airline owner) isn’t surprising. The acting head of the Federal Aviation Administration is formerly of American Airlines and of the Aerospace Industries Association, of which Boeing is a prominent member. Trump is expected to nominate a former Delta Air Lines executive for the top FAA job. His acting defense secretary is a former Boeing executive.
 
Nobody yet knows whether the Ethiopian Airlines crash had the same cause as October’s similar Lion Air crash in the Java Sea near Indonesia. But, clearly, the procedural fix circulated by the FAA in November was inadequate, and a Boeing software update, which government officials planned for January, never came. The Wall Street Journal reported that the delay was caused, in part, by the government shutdown. The corporate FAA chief denies this, but the pilots’ union had warned that the shutdown suspended safety oversight.
 
 

https://www.washingt...m=.6f192dc017f3


Edited by KK Lee, 16 March 2019 - 07:25 PM.


#50 xtemujin

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Posted 18 March 2019 - 12:18 PM

Flawed analysis, failed oversight: How Boeing, FAA certified the suspect 737 MAX flight control system
Originally published March 17, 2019 at 6:00 am
 

Edited by xtemujin, 18 March 2019 - 12:18 PM.


#51 xtemujin

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Posted 20 March 2019 - 07:24 AM

Capt. Sullenberger on the FAA and Boeing: ‘Our credibility as leaders in aviation is being damaged’
By Capt. 'Sully' Sullenberger
Published: Mar 19, 2019 3:29 p.m. ET

https://www.marketwa...saga-2019-03-19

#52 KK Lee

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Posted 30 March 2019 - 08:58 AM

MCAS was originally designed to activate based on data from a single angle-of-attack sensor, which measures the level of the jets nose relative to oncoming air. Air-safety experts, as well as former employees at Boeing and the supplier that made the sensor, have expressed concern that system had this single point of failure, a rarity in aviation.

Such sensors are highly reliable and have been used on passenger jets for years, but like any aircraft component, they can fail, the engineers said. Because the sensor is fallible, it is surprising that Boeing enabled it alone to activate a system that automatically pushes the aircraft toward the ground, said one former engineer who helped build the sensors at Rosemount Aerospace, a subsidiary of the industrial giant United Technologies based in Burnsville, Minn.

https://www.nytimes....-max-crash.html

Boeing was either complacent, ignorant or challenging probability/likelihood.

Edited by KK Lee, 30 March 2019 - 09:00 AM.


#53 flee

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Posted 30 March 2019 - 09:52 AM

It gives the impression that Boeing is arrogant - it knows best and to hell with the customer, pilots, and passengers.

Not disclosing the existence of MCAS to customers and pilots is ample proof of this arrogance.

#54 S V Choong

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Posted 30 March 2019 - 10:52 PM

MCAS was originally designed to activate based on data from a single angle-of-attack sensor, which measures the level of the jets nose relative to oncoming air. Air-safety experts, as well as former employees at Boeing and the supplier that made the sensor, have expressed concern that system had this single point of failure, a rarity in aviation.

Such sensors are highly reliable and have been used on passenger jets for years, but like any aircraft component, they can fail, the engineers said. Because the sensor is fallible, it is surprising that Boeing enabled it alone to activate a system that automatically pushes the aircraft toward the ground, said one former engineer who helped build the sensors at Rosemount Aerospace, a subsidiary of the industrial giant United Technologies based in Burnsville, Minn.

https://www.nytimes....-max-crash.html

Boeing was either complacent, ignorant or challenging probability/likelihood.

 

If the 737Max was designed correctly with correct weight distribution from the beginning, then there wouldn't be a need for the MCAS.



#55 flee

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Posted 12 April 2019 - 09:36 PM

Boeing has completed 96 flight tests of 737 Max software update

See:
https://www.flightgl...ax-soft-457417/

#56 KK Lee

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Posted 29 April 2019 - 01:09 PM

Last year, inspectors with the Federal Aviation Administration discovered Boeing deactivated a signal designed to advise the cockpit crew of a malfunctioning of the MCAS system, the source said.
 
The inspectors were in charge of monitoring Southwest Airlines, the biggest user of 737 MAX planes, with a fleet of 34 of them at the time, the source said.
 
Before the Lion Air crash, which killed all 189 people on board, signals “were depicted as operable by Boeing on all MAX aircraft” regardless of whether the cockpit crew thought they had them turned on or off, said a Southwest spokeswoman.
She said after the accident, Boeing told Southwest the signals were “turned off unless they were specifically designated as being turned on” – prompting the airline to choose that option for all its aircraft.
 
It was at that point inspectors learned Boeing decided to make the malfunction alert an optional extra costing more money – and deactivated the signal on all 737 MAX delivered to Southwest without telling the airline.
 
They considered recommending grounding the planes as they explored whether pilots flying the aircraft needed additional training about the alerts, said the source.
 
They decided against that – but never passed details of the discussions to higher-ranking officials in the FAA, the source said, confirming a story in The Wall Street Journal.
 
 


#57 xtemujin

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Posted 06 May 2019 - 05:08 PM

Rogue Boeing 737 Max planes ‘with minds of their own’ | 60 Minutes Australia
 

Edited by xtemujin, 06 May 2019 - 05:08 PM.


#58 KK Lee

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Posted 08 May 2019 - 11:06 PM

With 737 Max, Boeing Wants to Win Back Trust. Many Are Skeptical.
By Natalie Kitroeff and David Gelles
May 8, 2019
 
A charm offensive by Boeing to persuade airlines, crews and passengers to rally behind its 737 Max plane is already running into resistance.
 
The effort, which includes daily calls with carriers as well as meetings with pilots and flight attendants, is being hampered by a problem of the company’s own making. After a bungled response to two deadly crashes involving the jet, Boeing is facing credibility problems.
....
 
In part, the reluctance stems from Boeing’s mixed messaging. Despite having said “we own it,” Mr. Muilenburg has not acknowledged that anything was wrong with the design of the 737 Max, saying that the design process followed standard procedures.
 
“We clearly have areas where we need to improve, including transparency,” Mr. Johndroe, the Boeing spokesman, said in a statement.
 
During the meeting last month, the flight attendants pushed Mr. Moloney to explain why the company didn’t inform pilots about the software that contributed to both crashes. He acknowledged that Boeing should have told them, but kept reiterating that pilots were expected to be able to handle the conditions on both doomed flights.
 
Passenger groups have demanded that Boeing take more responsibility for the Max debacle. “If they really wanted to fix the problem you would think they would admit that it’s their fault,” said Paul Hudson, the president of Flyers Rights, a nonprofit group advocating for passengers. “You can’t say ‘oh we own it, but we didn’t do anything wrong and it’s someone else’s fault.’”
 
Pilots and airlines say that Boeing has also struggled to communicate with them about how basic systems on the Max work. After the first crash in Indonesia, pilots criticized Boeing for not informing them about the new software, which automatically pushes down the nose of the plane when the system deems it necessary. They have also been concerned by revelations that Boeing provided incomplete information about features in the cockpit.
 
This week, Boeing said that it believed a key cockpit warning light was standard on all Max jets, but learned several months after beginning deliveries in 2017 that the light worked only if airlines had bought a separate feature, known as the angle of attack indicator. Southwest bought the plane without the indicator, on the assumption that the warning light was activated. It was only after the Lion Air accident that Boeing told regulators and some pilots that the light wasn’t functional.
 

Edited by KK Lee, 08 May 2019 - 11:13 PM.





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