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Ethiopian airliner down in Africa

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Ethiopian airliner down in Africa

Old 13th Mar 2019, 18:01
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Originally Posted by MLHeliwrench

just as fast as speculation fueled hysteria started - it will fade and joe public will go back to not caring in the least which variety of jet they are on.
Dismissing PAX concern based on widely reported concerns about possible inherent problems with the Max 8 as "hysteria" is the opposite of a safety-first mindset. You know no more than I do if the two incidents are direct, indirectly or not at all connected. But PAX see the same almost brand new derivative 737 jets crashing, in similar circumstances, without obvious cause, killing a JT610 and ET302 combined total of 338 PAX and crew. That undoubtedly concentrates the PAX mind. One looks like a misfortune, two looks like carelessness, n'est pas? If the questions we're all asking remain unanswered for some time, as seems likely (the Lion Air investigation is still on-going), then the Max 8 will remain grounded everywhere, except the US (for now), until otherwise determined, perhaps for many months. Anything other than a very short suspension of use looks very bad. Heaven forbid any Max 8 still flying goes down... And you really think PAX will forget and not care?

I don't need to tell anyone here of the long-term reputational consequences for types like the Comet, DC10, Concorde, or Fokker 28 not only for the model, but also for their manufacturer. If anything the digital age makes this potential damage more severe because the story will remain out there, just as Max 8s stay in their hangars and airlines seek compensation from Boeing for the groundings. I'm sure the US government will protect Boeing whatever happens, but the same may not be true for the future of the 737.
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Old 13th Mar 2019, 18:05
  #1102 (permalink)  
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Originally Posted by vmandr
see ACA780 now...(FR24 biz account)

The penny has just dropped - GPS altitude is displayed for live flights, but not on replay.

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Old 13th Mar 2019, 18:05
  #1103 (permalink)  
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Originally Posted by rog747
Ethiopia crash FDR/CVR recorders to go to Germany on insistence from Ethiopia investigators.

40 minutes ago

AP is reporting Germany refuses to take black box from crash


"A spokesman for Germany’s Federal Bureau of Aircraft Accident Investigation is telling The Associated Press that the agency was asked by Ethiopian authorities to analyze the black boxes from Sunday’s plane crash but declined because it lacked the necessary software.

Spokesman Germout Freitag said Wednesday that he doesn’t know where the black boxes will be sent next."

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Old 13th Mar 2019, 18:08
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The MCAS shouldn't engage based upon angle of attack only. If the MCAS engages based upon AoA in combination with airspeed, it would prevent most, if not all erroneous MCAS activation. Or better yet, engage based upon AoA, airspeed, and altitude.
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Old 13th Mar 2019, 18:20
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This is one of those situations where regardless of what the truth is for a specific incident, the pressure generated by the perceived reality must be a good thing by forcing action where it clearly was not urgently felt enough. It's entirely possible the latest ET incident wasn't related to MCAS, but there's absolutely 0% chance that the concerns about MCAS are immaterial to safety at this point, so what better time to use public opinion to pressure Boeing and the US regulatory agencies to address this?

Sure, the counterargument is along the lines of "How do you know it wasn't urgently felt enough? You shouldn't rush something like this, Boeing needs time to..." to which the response is, you're telling me before being rushed they were deliberately continuing to put planes in the air that were and are unsafe, know about it and that wasn't cause for shutting things down and/or creating urgency?

Not an argument anyone with any logic education under their belt wants to be on the side of.

Point being, engineering reality aside, political reality is in a perfect spot to force action. This is, undoubtedly, positive pressure, even if it isn't pleasant in the short term. One would think flight crew, cabin crew, ground crew, passengers, beancounters and everyone else could agree on at least the importance of the urgency of addressing whatever the concern is with systems, regardless of why it's being addressed.
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Old 13th Mar 2019, 18:21
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Originally Posted by Ian W
This is a public forum that is obviously used as a simple source by the media.

I would suggest instead of just cursoring past the top post on Rumours & News people should read it: BrandinettIB's Global Announcement - "Notice regarding post responsibility and anonymity. "PPRUNE will not guarantee your anonymity in such situations."
I don't think that I voiced an opinion not readily apparent to anyone who has actually flown an airplane of any sort. In the end we're dealing with trim which is the single most intuitive element of flight for even a novice pilot. "Zeroing out" pressure on the stick/yoke is probably the first thing that became "second nature" to me in my own limited experiences. As you grow in proficiency trim becomes even more valuable... So it's impossible for me to get beyond the fact that the captain of flight 610 wrestling with multiple oscillations due to intermittent runaway trim failed to follow the established procedures outlined by Boeing?

The real issue we're seeing here with the media is that they are not asking the right questions. Again this is not a defense of Boeing or the 737 MAX. I'd be angry to if I found Boeing introduced undocumented autonomous software into my world. It might in fact be the "correct" call to ground the plane (personally I have flown in it and would gladly do so again in any US carrier). I'll finish with this observation...While "we" (the generic public) do not have a complete understanding of the events that unfolded on Lion Air flight 610 the NTSB does have a much more complete understanding of what transpired. So...if the crew of flight 610 followed the recommended guidelines as set out by Boeing and the plane crashed what actions would the NTSB take? Lets go beyond that and look at the actions of the preeminent 737 airline in the world (SWA). If they felt that the plane represented any real and significant level of risk (above the obvious in air travel) what would they do...

So if your a media member and you happen to read my speculation why not start at the beginning and ask a few simple questions. What role is automation meant to play in commercial aviation and why does the FAA require (and has even increased it requirements) a higher level of experience then any other regulatory body for aviation globally? Is there a correlation between the FAA's confidence in air safety in the United States and those requirements? What are the requirements of the MPL (the fast growing global alternative) and what level of proficiency does a newly minted MPL cadet have?
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Old 13th Mar 2019, 18:22
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Originally Posted by DaveReidUK
The NTSB, as a party to the investigation, had (not unreasonably) been pressing for the recorders to go to the USA, but despite their fierce independence from the FAA.....
Maybe from the FAA, but not so fierce when they use the Party System (c.f. TWA800, Boeing withholding critical information and the Rand report which still has not been implemented as far as I know).
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Old 13th Mar 2019, 18:25
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Originally Posted by rog747
Ethiopia crash FDR/CVR recorders to go to Germany on insistence from Ethiopia investigators.
Just a note on what's brewing as some sort of controversy....

The LionAir610 FDR was examined thusly:

On 1 November 2018, the Crash Survivable Memory Unit (CSMU) of the DFDR was recovered by the search team. The CSMU was transported to the KNKT recorder facility for data downloading. The read-out was performed by KNKT investigators with the participation of the Australian Transport Safety Bureau (ATSB), the National Transportation Safety Board (NTSB) of United States of America and Transport Safety Investigation Bureau (TSIB) of Singapore as Accredited Representatives.

It's suggested here that the Indonesian NTSC are doing their own download and analysis of the CVR.

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Old 13th Mar 2019, 18:32
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Trump just said he will be issuing an order to ground the Max 8 and Max 9.

I'm watching on MSNBC but will post a link when it appears.

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Old 13th Mar 2019, 18:34
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just in - U.S will ground all MAX from White house grounded on landing at destination

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Old 13th Mar 2019, 18:35
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Twitter has it that Trump has just grounded all the 737 Max. If true, that's kinda handy for FAA and Boeing in that POTUS has taken the heat.
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Old 13th Mar 2019, 18:35
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USA grounds all B737-8 and 9 MAX as per now, 1130 PT.
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Old 13th Mar 2019, 18:38
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President Trump said that planes in the air will be grounded on arrival at their destinations.

MAX's airborne at 1835Z:

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Old 13th Mar 2019, 18:44
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I would go to the manufacturer of the FDR and CVR and take some experts with, which do participate in the examination and restoration of the content. Should be plenty of experts around in the different national agencies.
Then get a copy of the digital content and take it to a safe place. From that on any tempering with the evidence is impossible and can always be proven. So the critical path is until you can read out the digital content. You can be sure that Boeing, GE, Safran and all the current Max users have a high interest in a timely and honest investigation. Is enough money at stake here.
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Old 13th Mar 2019, 18:46
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Trump says FAA will release details in "half an hour or so".
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Old 13th Mar 2019, 18:47
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Old 13th Mar 2019, 18:48
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Garneau said the decision to issue the safety notice was made after his department received new data suggesting a similarity between the Ethiopian Airlines crash and another deadly crash off Indonesia in October. He pointed out, however, that the information was new and unproven.

"There are — and I hasten to say not conclusive — but there are similarities," he said. "My departmental officials continue to monitor the situation and I will not hesitate to take swift action should we discover any additional safety issues."

Yesterday while catching up on this thread after a trans-Pacific flight, I saw an Air Canada Max taxiing in at Vancouver. Since I had not seen one before, I wandered over to its gate and discovered it was my ride to Calgary! I just snuck in under the wire!

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Old 13th Mar 2019, 18:50
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...and also FlyDubai grounded their MAXes

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Old 13th Mar 2019, 18:51
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Am I right in thinking that EASA had concerns about the certification of the MCAS system but in the end decided to take the lead from the FAA?

If that is true and it turns out that MCAS was also involved in the ET-302 crash, Boeing’s problems could be much worse than first thought.

I wouldn’t be surprised if those MAXs grounded outside the US yesterday and today, may still be on the ground long after Boeing’s software fix in April.
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Old 13th Mar 2019, 18:53
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UK Channel Islands airspace now closed to 737 MAX ... valuable, since none of our airports are big enough to take the aircraft anyway!
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