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Rail Accident Report: low water level in boiler
Posted: 14 Mar 2012, 19:02
by John Ashworth
Attached (and available online at
http://www.raib.gov.uk/cms_resources.cf ... rklees.pdf) is a report from the UK Rail Accident Investigation Board into an incident on a narrow-gauge heritage railway where the firebox was damaged due to low water level. The locomotive dropped a fusible plug but the driver didn't notice and didn't drop the fire. It makes interesting reading for anyone operating steam locomotives, and some of the observations about heritage railways might also be relevant outside UK.
Re: Rail Accident Report: low water level in boiler
Posted: 16 Mar 2012, 13:14
by Brendon Anderson
It seems very odd that the driver was not aware that a fusible plug dropped??
Re: Rail Accident Report: low water level in boiler
Posted: 16 Mar 2012, 13:59
by John Ashworth
Hence the RAIB calling into question the training procedure for new drivers...
Re: Rail Accident Report: low water level in boiler
Posted: 16 Mar 2012, 16:52
by Brendon Anderson
I see that the level of training was questioned in the report, but anyone who has been anywhere near a loco when a plug drops will know that the release of steam is very violent and will extinguish any fire in the box.
Maybe the type of fusible plug is somehow different to the SAR spec...