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-   -   U.K. NATS Systems Failure (https://www.pprune.org/rumours-news/654461-u-k-nats-systems-failure.html)

ORAC 28th Aug 2023 11:05

U.K. NATS Systems Failure
 
U.K. NATS down, Major system failure.

Major disruption to both incoming and departing flights.

https://news.sky.com/story/network-w...ports-12949638

'Network-wide failure of UK air traffic control systems', Loganair reports

There has been a 'network-wide failure of UK air traffic control systems', according to the airline Loganair.

Sky News has had reports of passengers on other airlines outside of the UK being told that the air traffic control network is down and their flight will be delayed.

NATS, the national air traffic controllers, said in a statement: "We are currently experiencing a technical issue and have applied traffic flow restrictions to maintain safety. Engineers are working to find and the fix the fault.

"We apologise for any inconvenience this may cause."

hunterboy 28th Aug 2023 11:06

Hilarious…another example of the UK’s crumbling infrastructure. Don’t we build resilience in anymore?

Flying Wild 28th Aug 2023 11:16

12+ hour slot delays in some cases.

Flying Wild 28th Aug 2023 11:21

28/08/2023 11:12z
United Kingdom is experiencing a Flight Data Processing System failure.
Scottish and London FIRs are regulated at low rates with very high individual delays.

Currently there is no indication of when a solution for the failure will be available so no improvements for flights entering UK airspace are forseen in the near future.

Further information will be published when available.

NMOC Brussels

Auxtank 28th Aug 2023 11:24

Hacked?

https://www.bbc.co.uk/news/uk-66637156

Mind you - doesn't exactly look quiet ...

https://cimg8.ibsrv.net/gimg/pprune....a8cc4526dd.jpg

hobbit1983 28th Aug 2023 11:47

Yes, but flights will continue to destination if they're already airborne. Others won't be able to depart. Shouldn't it thin out over the next few hours?

wiggy 28th Aug 2023 11:50

From Eurocontrol public portal at 1112 UTC..


United Kingdom is experiencing a Flight Data Processing System failure.
Scottish and London FIRs are regulated at low rates with very high individual delays.

Currently there is no indication of when a solution for the failure will be available so no improvements for flights entering UK airspace are forseen in the near future.

Further information will be published when available.

mikemmb 28th Aug 2023 12:05


Originally Posted by hunterboy (Post 11492823)
Hilarious…another example of the UK’s crumbling infrastructure. Don’t we build resilience in anymore?

But surely when we build stuff resilience is not in the current years budget ……so just pass the parcel.

RetiredBA/BY 28th Aug 2023 12:21

Is this possibly Russian Hacking after Ukrainian drones caused delays at Moscow’s airports ?

hobbit1983 28th Aug 2023 12:23


Originally Posted by RetiredBA/BY (Post 11492871)
Is this possibly Russian Hacking after Ukrainian drones caused delays at Moscow’s airports ?

I doubt it

sixgee 28th Aug 2023 12:24

I for one am glad I’m not flying today, inbound on an RCF flight plan.

skidbuggy 28th Aug 2023 12:26

https://cimg2.ibsrv.net/gimg/pprune....b86ff41f1a.gif

RetiredBA/BY 28th Aug 2023 12:44


Originally Posted by hobbit1983 (Post 11492873)
I doubt it

Really? Seems too much of a coincidence that this has happened on one of the busiest days of the year, aviation wise.
Cant remember such a serious system crash in my 25 years of civil flying, not counting French mischief !

kcockayne 28th Aug 2023 12:45

Here in Jersey we are starting to see transatlantic westbound routing over us, which don’t usually come this way. So far, there have been at least 4 KLM EHAM departures overhead plus a Brussels A/L Washington flight. This almost never happens, even when NAT tracks are a bit southerly. Also apparent are German transatlantic, although this is fairly common with southerly tracks. Looks like we’ll see a lot of different a/c this afternoon & evening. Although, “see” is not quite accurate - as it is quite cloudy at the moment.

hobbit1983 28th Aug 2023 12:47


Originally Posted by RetiredBA/BY (Post 11492889)
Really? Seems too much of a coincidence that this has happened on one of the busiest days of the year, aviation wise.
Cant remember such a serious system crash in my 25 years of civil flying, not counting French mischief !

I can't rule it out. But I'd apply Occam's razor; more likely to be Murphy's Law combined with a lack of resilience/cockup in IT systems...

bubbs 28th Aug 2023 13:30

CFMU NOP now recommending operators consider cancelling flights from EG and EI airports to EU.

Merry Christmas 😬

MissChief 28th Aug 2023 13:36


Originally Posted by bubbs (Post 11492908)
CFMU NOP now recommending operators consider cancelling flights from EG and EI airports to EU.

Merry Christmas 😬

CFMU? NOP?

Expatrick 28th Aug 2023 13:39


Originally Posted by bubbs (Post 11492908)
CFMU NOP now recommending operators consider cancelling flights from EG and EI airports to EU.

Merry Christmas 😬

Not been CFMU for years!

Network Operations Portal.

drazziweht 28th Aug 2023 13:45


Originally Posted by RetiredBA/BY (Post 11492889)
Really? Seems too much of a coincidence that this has happened on one of the busiest days of the year, aviation wise.
Cant remember such a serious system crash in my 25 years of civil flying, not counting French mischief !

Do you not remember Dec 12 2014 ?


Expatrick 28th Aug 2023 13:46


Originally Posted by drazziweht (Post 11492921)
Do you not remember Dec 12 2014 ?

And 2009?

Denti 28th Aug 2023 13:48


Originally Posted by MissChief (Post 11492912)
CFMU? NOP?

Everyone in the business should know those acronyms, CFMU used to be the central flow management unit, NOP is the network operations portal, which you can access here.

Expatrick 28th Aug 2023 13:51


Originally Posted by Denti (Post 11492923)
Everyone in the business should know those acronyms, CFMU is the central flow management unit, NOP is the network operations portal, which you can access here.

CFMU was...

NMOC since about 2012 (I think).

Del Prado 28th Aug 2023 13:54

Roma ACC experiencing high delays due to FDP failure also.

ATC Watcher 28th Aug 2023 13:56

From the look of it so far, between the diversions and the cancellations, there are hundreds of aircraft which are going to be at the wrong place tomorrow when this is over, it will takes days to recover. These outages show how tight the whole system is. a single computer ( most likely software) failure anywhere and the whole network is in shambles, in just a few hours we reached over 1 million minutes delay already :rolleyes:

N4565L 28th Aug 2023 14:15


Originally Posted by Expatrick (Post 11492916)
Not been CFMU for years!

Network Operations Portal.

Us oldtimers still refer to it as CFMU, proving you can't teach old dogs new tricks.

We are now looking at crew duty times running out & aircraft out of position, getting ugly.

blind pew 28th Aug 2023 14:28

Was talking to an ex controller Saturday who is writing a masters thesis on the previous two major shutdown..Jesus the systems and back ups are so complicated my brain gave up trying to understand it. The data links, no paper strips, looking at radar returns without secondary idents and you just can’t phone the bloke on the next sector.
Gone are the days of wacking a TV and wiggling the aerial.
Best of luck.

ORAC 28th Aug 2023 14:43

NATS have announced that the fault has been identified and rectified.

The delays and knock-on effects will, of course, take several delays to sort out.

piper mohawk 28th Aug 2023 14:54

It is a 'rumour network' so my guesses are:

1. Software update which hasn't gone through the agreed change control process, or
2. Third party hosting provider outage, or
3. Hardware issue at a 'single point of failure', or
4. Undetected software bug.
All mitigatable given adequate resources.



Expatrick 28th Aug 2023 15:04

From NMOC


Message from NATS regarding FPDS situation.


We are continuing to monitor the situation and improve this where possible.

London and Scottish are in a recovery process.
Sector regulations at reduced rates are applied.
However High delays continue during this period.

EGLL Arrivals is now available at a reduced rate.

Customers are requested to continue keeping EOBTs and flight plans up-to-date.

No further ATICCC customer teleconferences are planned. If you have any issues with individual flights please contact the UK Airspace and Capacity Management (ACM) team as normal.
We apologise for the impact of this technical failure to your operation and passengers. A thorough investigation is underway and we will update customers as soon as it has been completed.


NMOC Brussels on behalf of NATS

ShyTorque 28th Aug 2023 15:04

Maybe someone tripped over a cable?

Flying Wild 28th Aug 2023 15:07

Easyjet have apparently cancelled all UK outbound departures for the rest of the day as per an ACARS message to all aircraft at 1450Z

chevvron 28th Aug 2023 15:24


Originally Posted by piper mohawk (Post 11492957)
It is a 'rumour network' so my guesses are:

1. Software update which hasn't gone through the agreed change control process, or
2. Third party hosting provider outage, or
3. Hardware issue at a 'single point of failure', or
4. Undetected software bug.
All mitigatable given adequate resources.

A software update was certainly the cause of one outage; system wasn't 'dumping' FPL data and was overloading the system by randomly re-using 'old' flight plans; don't ask me how, I'm useless at computers.
NATS went over to electronic flight progress strips some years ago (about 2014 I think) however they do have paper strips as backup.

RHagrid 28th Aug 2023 16:00

More ATSA/ATCA's required obviously!!

compton3bravo 28th Aug 2023 16:14

Sorry Flying Wild an easyJet left Luton at 1640 enroute to Palma.
Two words sum up this situation - broken Britain.

Apron Artist 28th Aug 2023 16:21

147 departure cancellations from LGW (so far) and rising. My sympathies to my former colleagues...

Midland 331 28th Aug 2023 16:40

I'm sure that, despite the details given in the link, the old LATCC IBM9020 is in a lock-up in West London, and could be fired up..... :-)

https://atchistory.files.wordpress.c...20-goodbye.pdf

kcockayne 28th Aug 2023 16:51

=Ah, the good old 9020. Even that used to go down, at times. I remember (I think it was on a Wednesday) having to revert to “manual” & write out all the Flt. Progress Strips by hand. Don’t think that it caused too many delays, though !
Just ATCOs trying to decipher what was written on them !
Incidentally, my son’s first flight on the A380 today. Chose a good day to start !

R T Jones 28th Aug 2023 17:30


Originally Posted by compton3bravo (Post 11493000)
Two words sum up this situation - broken Britain.

Haha! I used this phrase at work in the last few days to describe how I felt about the U.K. at the moment…

Flying Wild 28th Aug 2023 17:52


Originally Posted by compton3bravo (Post 11493000)
Sorry Flying Wild an easyJet left Luton at 1640 enroute to Palma.
Two words sum up this situation - broken Britain.

Should have clarified. The message related to Easy UK AOC aircraft. Was the LTN-PMI a G-reg?

SWBKCB 28th Aug 2023 18:04


Originally Posted by Flying Wild (Post 11493041)
Should have clarified. The message related to Easy UK AOC aircraft. Was the LTN-PMI a G-reg?

Yes - G-EZUW operating U22331/EZY58RG. 10 EZY UK a/c currently airborne


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