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These new planes Crashing

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Replies: 196
By:
detraveller
When: 19 Mar 19 15:18
A system can be hacked to act in such a way. The MCAS hardly employs any firewall and up until the software update in 2018 was without any protection at all. It is possible someone hacked the planes.
By:
lfc1971
When: 19 Mar 19 15:18
thrust is provided by the engine
By:
lfc1971
When: 19 Mar 19 15:19
more tripe from detraveller
By:
detraveller
When: 19 Mar 19 15:20
The engine only provides the necessary electronics to move the wings up or down, depending on whether you need to take off or land. When in the air, the engines can be shut down. Airplanes can glide you know. What in aviation term is known as auto pilot.
By:
terry mccann
When: 19 Mar 19 15:21
As you say, the techno on these new planes is over-riding the pilots decisions ,and all control is lostCry
By:
detraveller
When: 19 Mar 19 15:21
http://www.boeing.com/resources/boeingdotcom/commercial/airports/acaps/737MAX_RevA.pdf

,
By:
lfc1971
When: 19 Mar 19 15:22
nope, gliding is not auto pilot
By:
detraveller
When: 19 Mar 19 15:23
?
By:
lfc1971
When: 19 Mar 19 15:25
I can assure you detraveller they don't shut the engines down at any time whether in the air or not
By:
detraveller
When: 19 Mar 19 15:26
I am not fooled by your lack of knowledge lfc.
By:
lfc1971
When: 19 Mar 19 15:27
ok
By:
detraveller
When: 19 Mar 19 15:31
You give up?
By:
Just Checking
When: 19 Mar 19 15:55
Jesus this thread has seriously went from intelligent discussion to .. something else, hasn't it.
By:
lfc1971
When: 19 Mar 19 16:10
When we have two crashes of the same aircraft a new aircraft in such a short time then something is wrong with modern aviation
They seem to be building in potential problems , they are too complex
By:
detraveller
When: 19 Mar 19 16:11
There's just been one crash lfc
By:
lfc1971
When: 19 Mar 19 16:17
Flaws in the mcas system and problems for the pilots to counteract these when things go wrong
well we will have to wait and see
By:
cooperman
When: 20 Mar 19 10:51
Lion air flight apparently was saved the day before it crashed by an off duty pilot from nosediving. He showed the on duty pilots how to disable the system and saved the plane.
By:
lfc1971
When: 20 Mar 19 11:37
Almost unbelievable that they are flying an aircraft and don’t know how to or can’t quickly correct a fault like that
By:
Latalomne
When: 20 Mar 19 15:19
They didn't even know the aeroplane had MCAS fitted because Boeing DIDN'T TELL THEM.
By:
lfc1971
When: 20 Mar 19 15:28
Obviously some pilots knew so Boeing must have told somebody
By:
lfc1971
When: 20 Mar 19 15:30
These systems have to be tested  , inspected , engineers , testers , pilots must have known it was on the aircraft
By:
the old nanny ;-)
When: 20 Mar 19 15:38
"There's just been one crash lfc"  Plain

2 that I know of  Sad
By:
lfc1971
When: 20 Mar 19 16:02
Just can’t get my head around the idea that there would be a fundamental system like this ( or any system ) on an aircraft and the pilots not to know about it, just doesn’t make any sense at all
By:
Latalomne
When: 20 Mar 19 16:13
Google "Seattle Times Flawed analysis, failed oversight: How Boeing, FAA certified the suspect 737 MAX flight control system"
By:
lfc1971
When: 20 Mar 19 16:16
Right , for the possibility that some pilots were unaware of this system ( which shouldn’t be the case in any event )

It must mean there was no specific way to disable MCAS , ie a switch in the cockpit , whatever
That can’t exist

Therefore the means of disabling MCAS must rely on the procedures that pilots would follow naturally if an aircraft started to stall
These would be the taught procedures , ie disable auto pilot ( easily done ) and take manual control

But the problem with MCAS was that these usual procedures didn’t work
And this caused confusion and mayhem

So it’s possible the fault lies in not having a stand alone way to disable MCAS ( such as a switch in the cockpit)
Which any pilot would have seen and asked what’s this ?
And also a breakdown in communication and training between Boeing and some pilots some airlines
However all airlines must have known at some level that these aircraft were fitted with MCAS for maintainance purposes etc
By:
Latalomne
When: 20 Mar 19 16:17
I give up.
By:
lfc1971
When: 20 Mar 19 16:18
Just saw your post Latimore will take a look
By:
lfc1971
When: 20 Mar 19 16:26
“ going against a long Boeing  tradition of giving the pilot complete control of the aircraft “

This jumps out right away
By:
elise
When: 20 Mar 19 16:31
what jumps out straight away is how you manage to know so little about so much
By:
lfc1971
When: 20 Mar 19 16:33
Yep can believe pretty much believe everything in that article
By:
lfc1971
When: 20 Mar 19 17:00
So pilots around the world were notified by Boeing and knew about MCAS
But problems with training , understanding of the system , and fundamental flaws in the system itself
And of course money driving decision making both in the case of Boeing and the Airlines
By:
lfc1971
When: 20 Mar 19 17:04
* after the first crash
And there had been nothing in the pilots flight schedules
What a mess !
By:
Just Checking
When: 20 Mar 19 23:23
News just said the lion crash crew voice recorder showed they were scanning the manual to try and work out how to switch off the system that killed them.
But it wasn't even mentioned in the manual, as Boeing had decided not to put it in. (That's if it's possible and I've not read from a reliable source it is).

How Boeing can get away with this without ending up in court .. tempted to see about shorting their share price.
By:
detraveller
When: 20 Mar 19 23:52

Mar 20, 2019 -- 3:38PM, the old nanny ;-) wrote:


"There's just been one crash lfc"  2 that I know of 


I was just trying to put lfc off his path. He didn't take the bait on this one.

By:
detraveller
When: 20 Mar 19 23:58

Mar 20, 2019 -- 11:23PM, Just Checking wrote:


News just said the lion crash crew voice recorder showed they were scanning the manual to try and work out how to switch off the system that killed them.But it wasn't even mentioned in the manual, as Boeing had decided not to put it in. (That's if it's possible and I've not read from a reliable source it is).How Boeing can get away with this without ending up in court .. tempted to see about shorting their share price.


Dont short. I think their stock has already paid the price for this. Just because some people died doesnt make it any worse. At the end of the day, a stock like that reacts to how much money it will cost them and I am pretty sure a decent compensation after court ruling is priced in. People are not going to cancel their orders or stop ordering because of an accident or two. So the only financial hit they'll take is the one in court.

JNJ was 'knowingly' distributing cancer in their powder and yet shorting it wouldn't have made you a single buck. They were made to pay 29 mil to one woman and the stock didnt even react to that.

By:
Latalomne
When: 21 Mar 19 09:15

Mar 20, 2019 -- 11:23PM, Just Checking wrote:


News just said the lion crash crew voice recorder showed they were scanning the manual to try and work out how to switch off the system that killed them.But it wasn't even mentioned in the manual, as Boeing had decided not to put it in. (That's if it's possible and I've not read from a reliable source it is).How Boeing can get away with this without ending up in court .. tempted to see about shorting their share price.


You can disable it through the Stab Trim Switch, but the way you come to do that is by running the Trim Runaway checklist, and this does not manifest as a trim runaway problem, as in that scenario the trim would run all the way to the mechanical stops and not run for just 10 seconds before resetting. 

The Lion Air crew had practically no chance as they had no idea that MCAS was even a thing. 

Ethiopian should at least have been aware of it, but had roughly 1000ft to play with (Lion Air managed to eek out about 6000ft), which, most pilots agree, does not provide an awful lot of latitude for trouble shooting.

By:
lfc1971
When: 21 Mar 19 09:59
if it wasn't a trim runaway problem what else could it be ?
By:
Latalomne
When: 21 Mar 19 10:00

Mar 20, 2019 -- 11:58PM, detraveller wrote:


Mar 20, 2019 -- 10:23PM, Just Checking wrote:News just said the lion crash crew voice recorder showed they were scanning the manual to try and work out how to switch off the system that killed them.But it wasn't even mentioned in the manual, as Boeing had decided not to put it in. (That's if it's possible and I've not read from a reliable source it is).How Boeing can get away with this without ending up in court .. tempted to see about shorting their share price.Dont short. I think their stock has already paid the price for this. Just because some people died doesnt make it any worse. At the end of the day, a stock like that reacts to how much money it will cost them and I am pretty sure a decent compensation after court ruling is priced in. People are not going to cancel their orders or stop ordering because of an accident or two. So the only financial hit they'll take is the one in court.JNJ was 'knowingly' distributing cancer in their powder and yet shorting it wouldn't have made you a single buck. They were made to pay 29 mil to one woman and the stock didnt even react to that.


Detraveller is correct.  The only way the share price will take a real hit is if Boeing has problems with re-certifying the aeroplane once the national regulatory bodies really start to do some digging.  They already had 5011 pre-orders for the MAX at the end of Jan, and even after a few billion dollars in compo claims, the thing will still be massively profitable, assuming no-one ditched their orders.

By:
lfc1971
When: 21 Mar 19 10:40
When an aircraft has stabiliser movement  the first thing a pilot should do is stop this movement
The pilots may or may not have thought it was a runaway trim problem but they should have still acted to stop the movement of the stabiliser
By:
Latalomne
When: 21 Mar 19 10:45
The stab will routinely trim as a matter of course.  It does so to reduce the amount of stick pressure required by the crew.

You have absolutely zero comprehension of what you are talking about and should just be quiet.
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