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Fire At Manchester Picadilly

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simonmpoulton

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25 Jun 2011
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They are maintained by Alstom for Arriva.

Surely they wont be covered by the original service contract from when they were built 10+ years ago now though? I'm still betting that Arriva aren't paying Alstom for anything more than the absolute basics.

Whether it comes down to Alstom doing a poor job or Arriva not coughing up the cash for a good proper service package someone needs to be asking questions as to why this keeps happening. Parts don't spontaneously fail and catch fire - there are **always** signs of the problem beforehand which should have been picked up on inspections.
 

Nym

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There may well always be signs, but standard inspections may not reveal these problems.

For example the BOAC Comet aircraft were very well inspected but the problems didn't show up on inspection until a very expensive test rig was built.

Oil filters and fuel filters can fatigue and not be noticed during inspections as the fatigue is internal to a sealed unit, the manufacturer of which will have standard MTBF figures that will be used to determine replacement schedules. Most places work to within 2sd of the MTBF, if working on a Gaussian distribution, so 0.15% of units would fail before replaced if following this, that in a lot of industries is the standard.
 
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