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| Faulty track filmed before crash | Faulty track filmed before crash |
| (6 minutes later) | |
| Video images of the faulty track in the Cumbria derailment were taken by an inspection train two days before the crash but not viewed at the time. | Video images of the faulty track in the Cumbria derailment were taken by an inspection train two days before the crash but not viewed at the time. |
| Network Rail's measurement train passed at high speed through Grayrigg on the West Coast Main Line on 21 February. | Network Rail's measurement train passed at high speed through Grayrigg on the West Coast Main Line on 21 February. |
| The train's purpose is to alert the firm to defects only in the rails so it did not flag up the problems with the points being blamed for the crash. | The train's purpose is to alert the firm to defects only in the rails so it did not flag up the problems with the points being blamed for the crash. |
| A spokesman said the film was used as a "backwards reference tool". | A spokesman said the film was used as a "backwards reference tool". |
| One woman died and eight people were seriously injured when the Virgin Pendolino train derailed. | One woman died and eight people were seriously injured when the Virgin Pendolino train derailed. |
| It would probably take someone most of the month to watch one day's-worth of data Network Rail spokesman Wreckage recovery to begin | It would probably take someone most of the month to watch one day's-worth of data Network Rail spokesman Wreckage recovery to begin |
| Two new roads, built to provide access to the crash wreckage, are due to be completed. | Two new roads, built to provide access to the crash wreckage, are due to be completed. |
| Emergency services say the first of the massive cranes, which will be used to remove carriages from the site could start work on Thursday. | Emergency services say the first of the massive cranes, which will be used to remove carriages from the site could start work on Thursday. |
| Network Rail is hoping the line will be operational again after 10 March. Bus services are currently replacing trains in the area. | |
| Missing bolts | Missing bolts |
| The initial report from the Rail Accident Investigation Branch said faults with the points meant the tilting train could not follow its intended path over the tracks and derailed. | The initial report from the Rail Accident Investigation Branch said faults with the points meant the tilting train could not follow its intended path over the tracks and derailed. |
| Graphic: position of stretcher bars on points | Graphic: position of stretcher bars on points |
| Investigators found one of three stretcher bars was not in position, two were fractured and bolts were missing. | Investigators found one of three stretcher bars was not in position, two were fractured and bolts were missing. |
| The bars join the moving rails, keeping them a set distance apart. | The bars join the moving rails, keeping them a set distance apart. |
| The inspection train's equipment can automatically alert technicians on board to defects in the condition of the track's metal but would not pick up on missing stretcher bars. | The inspection train's equipment can automatically alert technicians on board to defects in the condition of the track's metal but would not pick up on missing stretcher bars. |
| It travels too fast to allow anyone to spot such faults at the same time through the video camera. | It travels too fast to allow anyone to spot such faults at the same time through the video camera. |
| The Network Rail spokesman confirmed that the inspection train's video recording showed one of the stretcher bars and some of the bolts were missing. | The Network Rail spokesman confirmed that the inspection train's video recording showed one of the stretcher bars and some of the bolts were missing. |
| But he said the video is only viewed after an incident. | But he said the video is only viewed after an incident. |
| The train runs at up to 125 mph and any such problems could not be picked up by watching it in "real time", he added. | The train runs at up to 125 mph and any such problems could not be picked up by watching it in "real time", he added. |
| The 18 hours of video footage needs to be slowed down for images to be seen accurately. | The 18 hours of video footage needs to be slowed down for images to be seen accurately. |
| "It would probably take someone most of the month to watch one day's-worth of data," he said. | "It would probably take someone most of the month to watch one day's-worth of data," he said. |
| Network Rail's maintenance policy requires visual checks of the West Coast Main Line to take place every week. | Network Rail's maintenance policy requires visual checks of the West Coast Main Line to take place every week. |
| However, in its initial report, the RAIB said there was evidence that a scheduled visual inspection of the track on 18 February had not gone ahead. | However, in its initial report, the RAIB said there was evidence that a scheduled visual inspection of the track on 18 February had not gone ahead. |
| While the crash investigation continues, buses are operating from Preston to Carlisle and from Lancaster to Carlisle serving Oxenholme and Penrith, in both directions. | While the crash investigation continues, buses are operating from Preston to Carlisle and from Lancaster to Carlisle serving Oxenholme and Penrith, in both directions. |
| GNER, TransPennine, Northern and Virgin CrossCountry have said they are accepting Virgin West Coast tickets until further notice. | GNER, TransPennine, Northern and Virgin CrossCountry have said they are accepting Virgin West Coast tickets until further notice. |
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