First Great Western has begun an investigation after the 11.01 Penzance-Paddington service failed between Pewsey and Savernake on August 4. The failure happened after the brakes locked on due to a fractured air pipe. The power cars were Nos. 43150 and 43152. At the time of the incident there were 500 passengers on board. Although the driver made attempts to locate and fix the fault, he requested a fitter, who was delayed as he was fixing another failed HST at Reading. Class 59 No. 59202 was despatched to wait in the Woodborough loop in case it was needed. When the fitter did arrive, at about 18.00, the fractured pipe was somewhere under the rear power car 43150, so this was detached. No. 59202 was then used to drag it back to Westbury, leaving the solitary power car 43152 to work the train forward to Paddington, arriving at 22.15, six hours late.
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机译：在8月4日Pewsey和Savernake之间的11.01 Penzance-Paddington服务失败后，First Great Western已经开始进行调查。该失败发生在由于空气管道破裂而使制动器锁定之后。动力汽车的编号为43150和43152。事故发生时，机上有500名乘客。尽管驾驶员试图查找并修复故障，但他仍要求安装工，但由于正在修理Reading的另一个HST失败而被延迟。派出59类59202号以在伍德伯勒循环中等待，以备不时之需。当钳工确实到达时，大约在18：00，破裂的管子就位于后动力车43150下方的某个地方，因此将其拆下。然后用59202号将其拖回韦斯特伯里（Westbury），留下了一辆孤独的动力车43152使火车继续前进到帕丁顿，到达22.15，晚了六个小时。
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