Computer Error Grounds Flights In the UK 68
Rambo Tribble writes: Reuters reports that flights from Heathrow, Gatwick, and many other airports have been shut down "due to a computer failure." The information comes from European air traffic control body Eurocontrol. No official word as yet as to the nature of the failure. "One source told the BBC the problem was caused by a computer glitch that co-ordinates the flights coming into London and puts the flights in sequence as they come into land or take off. He described it as a 'flight planning tool problem.'" Incoming flights are still being accommodated.
"Computer" failure? (Score:3, Insightful)
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Re:"Computer" failure? (Score:5, Funny)
sounds like we need a war on errorism.
Change Control (Score:2)
I'll just make this one little change here...it won't affect anything.
Re:"Computer" failure? (Score:5, Informative)
The Register is reporting that it's actually a power failure, apparently according to a Heathrow Airport spokesperson.
“There is a power outage at the NATS control centre in Swanwick, which is affecting UK airspace. Flights are currently experiencing delays and we will update passengers as soon as we have more information," said a spokesman from Heathrow as the effects of the outage spread.
You'd think that such systems would have fully redundant power supply infrastructure though, so maybe that's misinformation.
Re:"Computer" failure - yes (Score:1)
No, reports now are a computer failure - and the Reg now reports they run MS stuff - seems like the dodgy update that MS retracted is the smoking gun.
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Re:"Computer" failure - MUST REBOOT! (Score:2)
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You'd think that such systems would have fully redundant power supply infrastructure though, so maybe that's misinformation.
Redundancy isn't failproof. The railroad here has complete redundancy in the signal controls, yet they had a signal blackout anyway. The actual computer worked, but the backup failed and then the redundancy controller started acting funny due to undefined inputs. They ended up making the working computer bypassing the redundancy system and restart all trains, but missing the backup computer to confirm data, they switched to a reduced train schedule (they never really explained why). That lasted for 4 days u
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Railroads get real sensitive about train collisions. The signal system is very carefully designed to make sure it fails safe, which means stopping the trains. If there's no reliable backup system, they're not likely to proceed as normal. Running fewer trains means they can be further apart, mitigating the effects of a not-entirely-trusted signal system.
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Why? Because it couldn't be an application problem, or a hardware problem, or a power problem, or a network problem, or even an admin problem? Must be the OS?
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Anything other than "scary computers" being the cause would be nice.
Skynet?
Re:"Computer" failure? (Score:5, Interesting)
All of those are valid points.
However, some of us are old enough to remember stuff like this [gcn.com]:
Call it a well earned cynicism.
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Re: "Computer" failure? (Score:2)
If OS equals YOUR FAVORITE OS then error is non OS related. Else OS is the cause of the error.
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Mostly I want to know (Score:2)
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Just remember to compile and compact those access files...twice a day.
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does it begin with the " W " word?
Ooops (Score:2)
The user interface looks strangely similar to Galaxians.
Hope they have lots of parking space .... (Score:2)
restore & reboot (Score:3)
Don't they know about the backups on the planes in-flight? Shouldn't they just have one do a fly-by and drop an ethernet cable to a car pacing it on the runway below? Stupid Brits, don't know how to get things done in a crunch ;-)
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CNN reported it was a power problem (Score:4, Interesting)
And anecdotally, it seems many, if not most, of the ATC failures I remember hearing about in the US have also been power problems. These are kinda hard to test, as I wrote to a friend, "The on-duty ATC controllers get irate when you 'pull the big power plug' on their shift."
Usually failures like these are chains of events, e.g. "UPS ran out of batteries more rapidly than expected, and then we couldn't get the generators started."
Power problems are what doomed Fukushima, too, by the way.
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According to the summary they were using a computer glitch to co-ordinate the flights. I suppose that the power problem fixed the glitch and broke flight planning?
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Oh. I was under the impression that it was a result of the widely documented/reported combination of a tsunami/earthquake (9.0).
Re:CNN reported it was a power problem (Score:4, Informative)
The pumps lost power after the backup systems failed (ran out of battery, and the generators were knocked out), and that's what caused the reactors to overheat and meltdown. If power had been retained to the pumps, the major problems would have been averted.
https://en.wikipedia.org/wiki/... [wikipedia.org]
"The switching stations that provided power from the three backup generators located higher on the hillside failed when the building that housed them flooded.[68] Power for control systems switched over to batteries that were designed to last about eight hours.[102] Further batteries and mobile generators were dispatched to the site. They were delayed by poor road conditions and the first arrived only at 21:00 11 March,[95][103] almost six hours after the tsunami."
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Those were not the only backup pumps though. They had mobile pumps (fire engines) on site, but the emergency cooling system was broken so they didn't work.
Another move from North Korea? (Score:3, Funny)
Villain Kim Jong Un makes his next move with his team of super-hackers.
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Propably some bean-counter's "success"... (Score:1)
Likely some supplier had their rates downgraded long enough that they could not deliver good quality anymore. These "savings" are always exceedingly expensive in the long run.
not likely (Score:2)
Or they're idiots and didn't have a backup pen and paper solution that was used for decades before computers and all staff should have been trained on.
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Or they're idiots and didn't have a backup pen and paper solution that was used for decades before computers and all staff should have been trained on.
I'm betting on that one. We've become dependent on computers for air traffic control and I'll bet the manual system hasn't been trained in years.
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I suspect they do have a backup soloution (paper based or otherwise) but using it results in a much lower capacity than the main system. After all why would you build a new computer system if their wasn't a significant benefit to doing so?
If you have an incident that reduces capacity significantly in a system that is close to capacity then you have to prioritise. The priority for ATC is going to be to get planes already in the air safely onto the ground before they run out of fuel. Planes on the ground can
systemd? (Score:3, Funny)
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Power failure to the computer (Score:2)
Not a computer failure as such, according to my source.
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So stupid, it's not hard to achieve damn near 100% uptime on power, get feeds from two substations A and B, put each one through two UPS's and use two different sets of generators with different fuel sources as backup so you have A, A', B, and B', use a transfer switch to feed your equipment's A side supply from A with A' in reserve, and the B side supply from B' and have B in reserve (that way one of your power sources stays up without a transfer switchover even if you have a fuel problem). If you want to
You know the old hacker saying... (Score:2)
It's not a bug, it's a feature! (Score:2)
It's great to see for once that a glitch has been doing something worth-while, rather than just causing problems.
It's unfortunate, then, that this glitch has fallen-back to the errant ways of most glitches, which typically just cause trouble, without doing something useful.
I'm not sure it is time for a 12-step program for glitches, though, because I think most glitches do not want to change.
Approach sequencing (Score:2)
Older systems did that by hand but newer systems have algorithms which guide the trajectories of aircraft on approach so they finish up in a nice sequence. Thats what it sounds like in the summary.
British Porn Filter (Score:3)
Bring back the 60s (Score:2)
Looks like they are using hand me down software from the US from the 1960s written in a language called Jovial.
http://www.telegraph.co.uk/new... [telegraph.co.uk]
"Prof Thomas said the NAS system was written using a now defunct computer language called Jovial, meaning Nats has to train programmers in Jovial just to maintain the antiquated software."
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hand me down software from the US from the 1960s written in a language called Jovial.
Who's laughing now?
Old specs (Score:2)
When I worked on the radar system for south east England in 1977, the requirements included allowing for a madman in the computer room with an axe.
It was supposed to fail back gradually, eventually all the way to analog passive radar.
Whatever happened to decent requirements?
And get off my lawn!