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tfan



Joined: 31 May 2010
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PostPosted: 03/12/19 8:05 pm    ::: Boeing 737 Max 8 Reply Reply with quote

Boeing 737 Max 8 pilots complained of suspected safety flaw months before Ethiopian Airlines crash

Quote:
Pilots repeatedly voiced safety concerns about the Boeing 737 Max 8 to federal authorities, with one captain calling the flight manual “inadequate and almost criminally insufficient” several months before Sunday’s Ethiopian Airlines crash that killed 157 people, an investigation by the Dallas Morning News found.


Boeing to Make Key Change in 737 MAX Cockpit Software

Quote:
The change was prompted by preliminary results from the Indonesian crash investigation indicating that erroneous data from a single sensor, which measures the angle of the plane’s nose, caused the stall-prevention system to misfire. Then, a series of events put the aircraft into a dangerous dive.


tfan



Joined: 31 May 2010
Posts: 7378



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PostPosted: 03/13/19 3:59 pm    ::: Reply Reply with quote

US to ground all Boeing 737 MAX 8 and 9 jets in wake of crash

Quote:
On March 11, Boeing announced that the company "has been developing a flight control software enhancement for the 737 MAX, designed to make an already safe aircraft even safer."


The update seeks to correct what may have been the root cause of the crash of Lion Air Flight 610 in Indonesia last October—the Maneuvering Characteristics Augmentation System's (MCAS') reliance on a single sensor to determine whether the aircraft is entering a stall. But according to a WSJ report, that fix was delayed because the FAA shutdown interrupted the approval process.


I believe the USA was the last country to ban flights of the 737 MAX jets.


tfan



Joined: 31 May 2010
Posts: 7378



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PostPosted: 03/16/19 8:40 pm    ::: Reply Reply with quote

Ethiopian Airlines, Lion Air crash linked by new evidence

Why Did Boeing Put So Much Technology in the 737 MAX? To Make Money


The US government has reportedly subpoenaed a Boeing employee following the 737 Max's two deadly crashes

Quote:
The Seattle Times said the company's safety analysis of a new flight control system known as MCAS (Maneuvering Characteristics Augmentation System) had crucial flaws, including understating the power of the system.


Transportation Department seeks audit of FAA’s certification of Boeing 737 Max 8

Quote:
Many pilots were not aware the system existed until after the Lion Air crash. For some of them, training consisted of an iPad presentation, less than an hour long, that explained the differences between the Boeing 737 Max plane and older models. The FAA did not mandate simulator training.


tfan



Joined: 31 May 2010
Posts: 7378



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PostPosted: 03/29/19 12:21 pm    ::: Reply Reply with quote

The emerging 737 MAX scandal, explained

Quote:
The specifics of what happened in the regulatory system are still emerging (and despite executives’ assurances we don’t even really know what happened on the flights yet). But the big picture is coming into view: A major employer faced a major financial threat, and short-term politics and greed won out over the integrity of the regulatory system. It’s a scandal.


Congress holds fiery hearings on Boeing 737 Max 8 approval

Quote:
Senator Markey asked him, "Do you believe Boeing's practice of selling the Angle of Attack Indicator and warming lights as separate optional features may have contributed to the Lion Air and Ethiopian Airlines crashes? Yes or no."


The response appeared to duck the question about the fault indicator light (an $80,000 optional feature) and instead respond to the Angle of Attack system:

Quote:
Elwell said, "The AOA is not an optional piece on the airplane. We look at a certification process that we've using for decades, that we've refined over 130 times, is geared toward one thing, the safest possible aircraft --"


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