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Airbus Automation Question  
User currently offlineGoboeing From United States of America, joined Jun 2000, 2725 posts, RR: 15
Posted (10 years 9 months 5 days 18 hours ago) and read 4992 times:

Today I heard a story from someone. It was about an A-320 that came into an airport (BDL is what they said), landed, taxiied to the gate, and could not get the engines to shut down. They tried everything they could and they sat there for an hour. Apparently after a while, someone figured out that the problem was that they had set the altimeter incorrectly and the plane "thought it was in the air."

I have two questions. First, did this particular story actually happen? And would it really not let the pilot shut the engines down if the altimeters were set wrong? It seems to me like there's many other things the plane would use to determine if it's on the ground, like radar altimeter and sensors on the landing gear.

Second, can anyone explain some other interesting little Airbus computer quirks like this one (besides the whole flight envelope protection system)?

Thanks.


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Nick

8 replies: All unread, jump to last
 
User currently offlineAvt007 From Canada, joined Jul 2000, 2132 posts, RR: 5
Reply 1, posted (10 years 9 months 5 days 17 hours ago) and read 4974 times:

I`ve never worked on an Airbus, but I`ll tell you this story is bull for two reasons: First, altimeter settings have nothing to do with air/ground sensing. Second, if the a/c thought it was in the air, (and it does happen) what happens if you need to do an inflight shutdown? The ability to shut down an engine is basic, and wouldn't be disabled in any way.

[Edited 2004-03-23 19:32:31]

User currently offlineZak From Greenland, joined Sep 2003, 1993 posts, RR: 8
Reply 2, posted (10 years 9 months 5 days 15 hours ago) and read 4924 times:

i think thats the usual airbus bashing in line with the "you need special tools for an airbus while you can fix a boeing with stuff from the hardware store" myths.

(above is actually the other way around everywhere in the world but the u.s., since airbus uses metric and boeing imperial measurements.)



10=2
User currently offlineBuckfifty From Canada, joined Oct 2001, 1316 posts, RR: 19
Reply 3, posted (10 years 9 months 5 days 13 hours ago) and read 4882 times:

Once the engine masters are switched off, the engines will switch off (or at the very least, the fuel should be cut anyway). Ground, air, or god forbid, water...

User currently offlineN685FE From United States of America, joined Dec 2003, 451 posts, RR: 11
Reply 4, posted (10 years 9 months 4 days 20 hours ago) and read 4794 times:

Zak
"i think thats the usual airbus bashing in line with the "you need special tools for an airbus while you can fix a boeing with stuff from the hardware store" myths.

(above is actually the other way around everywhere in the world but the u.s., since airbus uses metric and boeing imperial measurements.) "

What are you talking about, can you give examples? The only metric item I can think of is the knob set screw on some of the radios. There seems to be another, I don't remember right now. Overall you can take apart an Airbus with the same tools you could take apart a Boeing with. (a big hammer and a cutting torch)



psp. lead by example
User currently offlineUTA_flyingHIGH From Tunisia, joined Oct 2001, 6495 posts, RR: 50
Reply 5, posted (10 years 9 months 4 days 20 hours ago) and read 4787 times:

The only metric item I can think of is the knob set screw on some of the radios.
The round thingy ?

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I fail to see how that can be metric or imperial ?!?

UTA, confused.



Fly to live, live to fly - Air France/KLM Flying Blue Platinum, BMI Diamond Club Gold, Emirates Skywards
User currently offlineN685FE From United States of America, joined Dec 2003, 451 posts, RR: 11
Reply 6, posted (10 years 9 months 4 days 18 hours ago) and read 4757 times:

...the knob SET SCREW... It is an allen screw used to secure the knob to the post.


psp. lead by example
User currently offlineSlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 68
Reply 7, posted (10 years 9 months 4 days 9 hours ago) and read 4671 times:

The event may have happened but the reason given is certainly not correct. Actually it is not all that uncommon to have the plane think it is still in the air - in some area, but not overall. Some marker was missed, so you get to the gate and shut down and still do not have ON and IN times recorded or something like that. But unable to shut down the engines - some other reason.

The only fix on the Airbus is [CTRL] [ALT] + [DEL]

Or pull the appropriate circuit breaker and wait for about thirty seconds.




Happiness is not seeing another trite Ste. Maarten photo all week long.
User currently offlineZak From Greenland, joined Sep 2003, 1993 posts, RR: 8
Reply 8, posted (10 years 9 months 4 days 8 hours ago) and read 4667 times:

"What are you talking about, can you give examples? The only metric item I can think of is the knob set screw on some of the radios. There seems to be another, I don't remember right now. Overall you can take apart an Airbus with the same tools you could take apart a Boeing with. (a big hammer and a cutting torch)"

i cant since the information was from a big discussion in here done long ago and that was kind of the consensus of it. since it did make perfect sense to me i assumed it was correct. i do not know if modern boeing planes are made for metric tools but i do recall that they were originally using imperial measures for everything including the design of the plane. and since it seemed quite remote that airbus uses imperial system i figured that above information was absolutely correct. if you have any further information i would love to learn more about it.

best regards



10=2
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