Author Topic: Airbus A-400 crash  (Read 5249 times)

Offline PR3D4TOR

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Re: Airbus A-400 crash
« Reply #45 on: June 02, 2015, 06:31:07 PM »
I've never heard of an Airbus (or any FBW system) shutting down an engine without the pilot commanding it to do so.
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Offline Brooke

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Re: Airbus A-400 crash
« Reply #46 on: June 02, 2015, 07:10:31 PM »
I've never heard of an Airbus (or any FBW system) shutting down an engine without the pilot commanding it to do so.

It is rare, but there was at least one incident of an Airbus fly-by-wire system supposedly not giving engine power even though the pilot had moved the throttles to full.

https://www.youtube.com/watch?v=-cv2ud1339E

Offline PR3D4TOR

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Re: Airbus A-400 crash
« Reply #47 on: June 02, 2015, 07:33:10 PM »
That's different. The aircraft was in a landing configuration on auto-throttles. We're talking about an uncommanded shutdown of an engine. I've never heard of that and I'd like to know more details about what Icepac is talking about.
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Offline Ripsnort

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Re: Airbus A-400 crash
« Reply #48 on: June 03, 2015, 02:51:10 PM »
Couldn't agree more... http://www.theverge.com/2015/5/1/8530737/787-dreamliner-software-bug-faa

It doesn't count when the airline manufacturer turns itself in. ;)

Boeing detected this in testing and contacted the FAA. That's why we test from the day the model is born until long after it's retired. ;)

Offline PR3D4TOR

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Re: Airbus A-400 crash
« Reply #49 on: June 03, 2015, 03:11:34 PM »
Well... To be fair, Airbus also detected the engine fault in testing... The hard way.
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Offline Sombra

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Re: Airbus A-400 crash
« Reply #50 on: June 03, 2015, 05:12:27 PM »
It seems Germans blame incorrect software installation in the Spanish assembly plant. This dude in a Spanish forum with "first hand knowledge" says that isn't possible...

https://translate.google.com/translate?sl=es&tl=en&js=y&prev=_t&hl=es&ie=UTF-8&u=http%3A%2F%2Fpilotosdeiberia.foroactivo.com%2Ft131p150-accidente-a400m-en-lezl%232509

I try to translate the most relevant paragraph:
Quote
Now that it is almost known to all, to my knowledge, that is very much first hand, I can say that the origin of the problem lies in the software programming. One of the affected areas has been certain probes that regulate engine power and that, among other things, decrease applied power below 15000 ft. Due to a previous software update, done in Germany, not here, and not in assembly either as it isn't possible (Poka-Yoke) [fool proof procedures], someone missed a "zero" and the system cut power at 1500 ft! The matter at hand is the validation of the software by the corresponding "Quality Assurance Service". Not Seville assembly plant, for sure.
« Last Edit: June 03, 2015, 05:19:34 PM by Sombra »

Offline icepac

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Re: Airbus A-400 crash
« Reply #51 on: June 03, 2015, 09:52:08 PM »
I've never heard of an Airbus (or any FBW system) shutting down an engine without the pilot commanding it to do so.

You're the one who's doubting it.........you look it up.

Why should I do work to satisfy you when the information is out there and in discussion with pilots who have experience with the systems?

Offline PR3D4TOR

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Re: Airbus A-400 crash
« Reply #52 on: June 04, 2015, 11:07:32 AM »
See Rule #4
« Last Edit: June 06, 2015, 06:32:03 AM by Skuzzy »
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Offline mechanic

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Re: Airbus A-400 crash
« Reply #53 on: June 04, 2015, 11:52:20 AM »
I flew into Seville 2 hours before that crash on an EasyJet airliner...

Lucky to have missed the delays
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Offline icepac

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Re: Airbus A-400 crash
« Reply #54 on: June 04, 2015, 05:32:55 PM »
« Last Edit: June 06, 2015, 06:32:41 AM by Skuzzy »

Offline PR3D4TOR

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Re: Airbus A-400 crash
« Reply #55 on: June 04, 2015, 05:54:23 PM »
I have and I find nothing about the flight computers of either Airbus or Boeing shutting down engines. There are a lot of articles on engines shutting down uncommanded by themselves due to ice and other malfunctions, but I find nothing on engines being shut down by flight computers. I call bullcrap.
« Last Edit: June 04, 2015, 06:03:00 PM by PR3D4TOR »
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Offline Zimme83

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Re: Airbus A-400 crash
« Reply #56 on: June 04, 2015, 05:59:22 PM »
Errors in design and assembly can happen regardless of the level of technology involved. it shouldnt happen but it does. It is far better than in the past but still not 100%. Fly-by-wire isnt excatly something new to a company like Airbus. Fly-by-wire aircraft has been around for 30 years, it is a well established technology and i dont see why it should be controversial. In this case it sounds like a failure in quality control and testing, dot in the design itself, just like the case of the Dreamliner.
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Offline PR3D4TOR

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Re: Airbus A-400 crash
« Reply #57 on: June 04, 2015, 10:11:21 PM »
And I'd like to point out that the software problem resulting in this A400 crash is not part of the Airbus flight systems. It's the FADEC engine control unit from Europrop. Part of the engine.
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Offline Golfer

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Re: Airbus A-400 crash
« Reply #58 on: June 06, 2015, 06:04:31 AM »
I have and I find nothing about the flight computers of either Airbus or Boeing shutting down engines. There are a lot of articles on engines shutting down uncommanded by themselves due to ice and other malfunctions, but I find nothing on engines being shut down by flight computers. I call bullcrap.

My old Lear shut an engine down several times on descent with no warning, reason or problem we could find with several in depth and thorough troubleshooting sessions.  Landed once and the boss got off the airplane with a "nice flight guys, see you in an hour."  Crew response?  "Uhh...the left engine shut down on final again so we'll be here a bit waiting for XYZ to come out and do some checks."  He shook his head and said we gotta find the problem before we sell the thing and to call when we could leave.

Offline PR3D4TOR

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Re: Airbus A-400 crash
« Reply #59 on: June 06, 2015, 06:39:36 PM »
And what did you find was the problem? Did the old Lear have a FBW system? If so, was it able to shut down engines without pilot command?
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