Posted on 03/18/2019 1:14:55 PM PDT by SeekAndFind
Flight data recovered from the wreckage of an Ethiopian Airlines jet showed “clear similarities” to another deadly crash of one of Boeing’s top-selling 737 Max aircraft last October, according to the French accident investigator that downloaded the information.
Ethiopian Airlines Flight 302, a Boeing 737 Max 8, went down shortly after takeoff from Addis Ababa on March 10, killing all 157 people on board. That occurred less than five months after a Lion Air jet crashed into the Java Sea in Indonesia during a similar stage in its flight, killing all 189 passengers and crew. Both 737 Max 8 jets were delivered to the airlines just months before their fatal flights.
The U.S. on Wednesday joined dozens of other countries in ordering airlines to ground the planes after the Federal Aviation Administration said it found new evidence that may link the two crashes.
Investigators who verified the data from the doomed Ethiopian Airlines jet’s flight data recorder found similarities between the Lion Air and Ethiopia crashes, “which will be the subject of further study during the investigation,” French accident authority BEA said in a statement Monday. That echoed statements from Ethiopian Transport Minister Dagmawit Moges a day earlier.
Data from the other black box — the cockpit voice recorder — has also been extracted and has been handed over to Ethiopia’s accident investigator, BEA said. The U.S. National Transportation Safety Board, which is participating in the investigation of Ethiopian Airlines Flight 302, also verified the data, BEA added.
Scrutiny has increased on the federal approval process for the new Boeing Max jets, which have been flying for less than two years.
(Excerpt) Read more at cnbc.com ...
How Boeing and the FAA could think that a totally new fly by wire anti stall system should be controlled by non redundant sensors totally baffles me. That this system could not even be mentioned in the pilots’ flight manual when the 737 Max wa originally certified is absolutely incredible.
I’m sure that North American based airlines could operate the 737 Max safely, but there should be no excuses for the flawed design of the MCAS.
Something new come out of this MSPMS report? We have been hearing the “similarities” angle for a week.
The MCAS system only uses one angle of attack sensor input, even though there are 2 on the plane.
The entire purpose was to avoid a new type-rating for the 737 Max. Boeing needed existing 737 pilots to be able to fly it far cheaper than if it was given a new type rating....which it deserves.
The larger engines sit higher and more forward than on standard 737s. This created some unique flight characteristics that are not shared with standard 737s.
MCAS was the shortcut.
Note that this is all coming from BEA, not the FAA....
Not the NTSB, rather.
The BEA. Snort.
While I can’t argue with what you posted, 200 hours experience with the lives of 200 people in his hands?
5 weeks?
Seriously?
All cultures are the same.
Agree.
Seems like this Angle of Attack sensor and respective stall avoidance system is at fault - erroneous data from a single sensor.
SMH.
I have nothing against adding the MCAS system to make flying the new 737 Max more like flying the 737NG. What I object to is not informing pilots about it and not requiring simulator training. I’m agnostic about it requiring a whole new type rating. Had there been sensor redundancy and pilot preparation ahead of certification and flying for airlines I don’t think there would have been problems. Anyway I was discussing this with my brother who is a computer programmer and has a masters in artificial intelligence. He and I were thinking just 2 sensors is not enough. If one sensor malfunctions, how do the avionics or the pilots determine which sensor to believe? I think heads will roll at the FAA.
Seems like this Angle of Attack sensor and respective stall avoidance system is at fault - erroneous data from a single sensor.
SMH.Agree.
Seems like this Angle of Attack sensor and respective stall avoidance system is at fault - erroneous data from a single sensor.
SMH.
As critical as the MCAS system has turned out to be, 2 sensors are not enough. There should be a minimum of 3 AoA sensors to allow 2 good sensors to outvote the bad sensor.
The MCAS system only uses one angle of attack sensor input, even though there are 2 on the plane.
...
The Airbus A321 has three AOA sensors and they still had similar problems to the MCAS.
The BEA. Snort.
That's the advantage of having redundant aviation national regulators. If one agency gets captured by its home industry, another one in a different country can independently come to its own conclusions.
As critical as the MCAS system has turned out to be, 2 sensors are not enough. There should be a minimum of 3 AoA sensors to allow 2 good sensors to outvote the bad sensor.
...
See the link in my post #12.
As someone who know the Aviation industry, especially the Aircraft Maintenance & Operations quite well. I offer a bit of sage advice. Never...and, I mean never listen to one word uttered by these Media folks....they have no idea what happened except “hearsay”...which in most cases turns out to be 100% incorrect or wrong.
A question that should be hammered home every day on the Media, is “Why did the First Officer (Co-Pilot) on the Ethiopian Airlines crashed B737MAX aircraft have only 200 active flight operating flying hours on the B737MAX aircraft.
Also...Why is the culture of cockpit operations of Lion Air & Ethiopian Airlines not being questioned. The USA, France, the United Kingdom, Canada, etc. has little trouble with their B737MAX aircraft.
I believe the answer to these fatal incidents is both technical shortcomings and human cockpit failure control breakdown. We shall see in time,...but I can assure you folks...you will learn nothing from CNBC or any other media input from around the world. Like everything they feed us peons,...they know very little of the truth or, they know no truth at all.
I only trust Boeing, the DOT and, our FAA for facts and truth and remedy...period.
That would be my conclusion too.
DO AWAY WITH THIS AUTOMATED PIVOTING HORIZONTAL STABILIZER NONSENSE! This is where technology exceeds common sense.
So Trump has been given correct information and made the right call, again.
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