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Post by deadmans on Jan 14, 2011 7:14:22 GMT
At Baker street, since very early this morning. Missing eight positive shoes on one side.  ;D |
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metman
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Post by metman on Jan 14, 2011 7:52:56 GMT
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Post by deadmans on Jan 14, 2011 9:03:40 GMT
It hit a object laying trackside.
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cso
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Post by cso on Jan 14, 2011 9:08:36 GMT
So, if it hit an object laying trackside, then presumably that was not really it's fault? Could it not also have been an A-Stock that hit it too at some poinit later in the day?
I presume this is the 'obstruction on the track' that TFLs website is talking about.
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Post by den on Jan 14, 2011 9:44:07 GMT
I had a feeling that it was going to be an S stock that was the "faulty train at Finchley Road". Guess any train could have hit the object.
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Deleted
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Post by Deleted on Jan 14, 2011 10:13:29 GMT
Guess any train could have hit the object. As it was out for testing last night, it was the first train through the area, so it could have been an A stock this happened to. As far as i can gather, someone had placed a spare or redundant stock and switch between a couple of tracks, and as this equipment wasn't placed in an area allowing enough clearance for trains, 545 duly had its shoes knocked off! |
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Post by deadmans on Jan 19, 2011 12:19:59 GMT
Stuck in the dip at Uxbridge! Gapped!
Another dropped out at Neasden, ACM failure...
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metman
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Post by metman on Jan 19, 2011 12:28:43 GMT
What's ACM?
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Deleted
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Post by Deleted on Jan 19, 2011 17:46:31 GMT
Thought it would be S stock that held up the trains lol, my mum was having a right go about it
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Ben
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Post by Ben on Jan 19, 2011 17:56:46 GMT
Is the dip the grade down into the station?
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Post by uzairjubilee on Jan 19, 2011 18:22:20 GMT
Gapped!? ACM?
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metman
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Post by metman on Jan 19, 2011 18:45:16 GMT
Gapped, basically when a train stalls because it leaves the conductor trains.
ACM?
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Post by peanuts on Jan 19, 2011 19:19:24 GMT
ACM = Auxiliary converter module
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prjb
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Post by prjb on Jan 19, 2011 21:27:02 GMT
One train had an intermitent ACM problem and was withdrawn from service in consequence.
We are currently investigating the problem awith the train at Uxbridge and gapping is being considered as a cause. I actually attended this incident to assist. We will be investigating further tomorrow when we have the downloaded data from the train.
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metman
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Post by metman on Jan 19, 2011 23:57:42 GMT
Let us know if that is possible please. I've found the S stock copes with rail gaps well.
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Post by deadmans on Jan 20, 2011 21:15:32 GMT
1) Stuck at wembley unable to close all its does. 2) Train not working due to ice on the current rails. stopped at Neasden 3) Gapped in the dip, outside Uxbridge station. All inside seven days. Add to that one stopped for lifting due to "COMPONENT FAILURE" blimey |
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Deleted
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Post by Deleted on Jan 20, 2011 21:17:55 GMT
Would you stop being so bloody pessimistic.
The second two are almost certainly not the fault of the train.
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prjb
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Post by prjb on Jan 20, 2011 22:26:38 GMT
Whilst the investigation continues what we do know is that the train had two negi shoes missing (one on each of the 'MS' cars), one shoe at the limit of it's tolerance (in terms of height), and one shoe just outside of the tolerance (too high). These simple faults coupled with the gradient on departure from Uxbridge and the amount of point work were contributory factors. We are carrying out a confidence run tomorrow and a full test run on Saturday night.
Early days really and as I have always said - we have never introduced a new fleet yet without incident. We have had 50 years to get to grips with the 'A' Stock, so this is just teething problems. I'm just genuinely sorry for all those customers who may have been adversely effected by this failure, which is why we are all working hard to get to the route cause in order to prevent this from happening again.
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Post by citysig on Jan 20, 2011 23:08:35 GMT
I am sure prjb will confirm in the fullness of time that nearly everything at present is linked to one area of the train. From what we've heard there is not a multitude of problems. Would you stop being so bloody pessimistic. Unfortunately, that is how Mr Deadmans is. You only have to look at the threads he has begun over the last couple of days. The glass is usually half empty, the whole company is a sham and yet the money goes in the bank every 4 weeks and I'm sure he spends it. |
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Deleted
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Post by Deleted on Jan 21, 2011 1:08:50 GMT
What does (3) "Gapped in the dip" mean?
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mrfs42
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Post by mrfs42 on Jan 21, 2011 1:26:36 GMT
"gapped" means that the train can't draw power, due to there being a gap in the current rails.
I presume the 'dip' refers to the sudden gradient change at Uxbridge.
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Ben
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Post by Ben on Jan 21, 2011 6:34:41 GMT
When was the last time any train became gapped on the same stretch, out of interest?
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prjb
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Post by prjb on Jan 21, 2011 19:54:59 GMT
I'm not 100% sure Ben but 'A' Stock have certainly been worked back into Uxbridge before due to stalling on the gradient (motors cut out/defective or shoes lost etc). Either way it is not good enough and we are working to find out what exactly happened here and rectify the problem for the future.
To that end we are out testing tomorrow night and will attempt to recreate the problem as well as create scenario's that are substantially worse.
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Post by Alight on Jan 21, 2011 20:01:34 GMT
The incident on Wednesday close to Uxbridge led to all customers on-board evacuating the train and walking back alongside the tracks to the Uxbridge platforms. The customers were kept on the train for a good 40 min.
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prjb
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Post by prjb on Jan 21, 2011 20:30:13 GMT
The incident on Wednesday close to Uxbridge led to all customers on-board evacuating the train and walking back alongside the tracks to the Uxbridge platforms. The customers were kept on the train for a good 40 min. I know, I was there! Sorry, I'm not sure what your point is? The 40 minutes that you qoute (I have the actual times taken in front of me) is an acceptable time in health and safety terms to be detained on a train in the open section. Further to that the 40 minutes qouted isn't bad considering that the staff tried everything in their power to get the train moving before the decision was taken to detrain. The detrainment process itself requires lots of staff and processes to be put in place, so again 40 minutes isn't actually that bad. I will again reiterate that we are very sorry for any inconvenience that this delay caused and we are working hard to try and prevent this type of incident from occurring again. |
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Chris M
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Post by Chris M on Jan 22, 2011 4:11:41 GMT
The detrainment process itself requires lots of staff and processes to be put in place, so again 40 minutes isn't actually that bad. Particularly when compared with two hours (this incident is from 2006*, but I'm sure there were more recent ones but I can't find the threads for them) *Off topic for this thread, but out of interest are you now able to say more about this incident than you were at the time? |
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Post by citysig on Jan 22, 2011 11:50:20 GMT
The target is always to have any train that is stalled in section to be at a platform / detrained to tracked level within 1 hour. Given the complex layout at Uxbridge, and the number of staff needed to assist, achieving this within 40 minutes is not bad at all.
If we fail to achieve the 1 hour target, there could be many reasons - not least being able to guarantee everyone's safety - why it is not met. Unfortunately, there are those who look only at statistics and one side of the story, rather than actual safety and the bigger picture. There have been occasions where maybe the judgment call was wrong, but lessons are always learnt.
Back to the S-stock.
As I'm sure prjb will confirm, details are emerging all the time about the incident, but the main cause is known. From that point, the lessons are being learned, and tests are being carried out.
I'm sure you'll forgive us if we don't share everything that is found out. Just take it that when an S-stock next departs Uxbridge in service, the chances of a similar incident occuring will be less than it is for an A-stock at present.
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Ben
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Post by Ben on Jan 22, 2011 12:21:50 GMT
Thanks for the response prjb; I know I can be negative about the S stock, but thats my own problem. I hope however that tonights testing and simulation allows a good resolution to your current own  |
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Chris M
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Post by Chris M on Jan 22, 2011 14:19:38 GMT
If we fail to achieve the 1 hour target, there could be many reasons - not least being able to guarantee everyone's safety - why it is not met. Unfortunately, there are those who look only at statistics and one side of the story, rather than actual safety and the bigger picture. Sorry if it wasn't clear, but my point was not to criticise about the 2 hour event, but to say that the 40 minutes at Uxbridge was good given other events. |
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Post by citysig on Jan 22, 2011 14:49:48 GMT
Sorry if it wasn't clear, but my point was not to criticise about the 2 hour event, but to say that the 40 minutes at Uxbridge was good given other events. Fully understand you weren't criticising. I merely spelt out the details for "others" shall we say  |
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;D
