Re: Indian Pacific hits freight train - Who's the Responsible Investigating body?

["Exnarc" <gwrly@netspace.net.au>]

David Langley <del@ancc.com.au> wrote in message
37C5403E.70286A7@ancc.com.au">news:37C5403E.70286A7@ancc.com.au...
> > Come on David the sand on Cowan bank thing was a major cop out i do
> > not believe for one second the whole train was insulated from the
> > track circuit the probability of that would be infinitesimal that
> > story was to appease the press!!!
> > regards Paul Johnston (MNRC)
>
> Me thinks that you have not had much experience with audio frequency track
circuits.
> Sand was a real issue although not necessarily the only issue. As we have
learnt from
> experience over the years, all "incidents" are generally caused by more
than one
> break down in proper working.
>
> David.
>
Me think Paul would have a real idea how track circuits work (but not as a
fitter), but whilst I'm not questioning your knowledge on the subject as I
know your background is in the field, I find it hard to understand how this
problem only became an issue in NSW, (on accident does seem to highlight
such things) surely this problem would have been known (for example) by VR
S&C, yet in my 37 years as an enginemen this is the only time I've heard of
such an problem, we were never for example told to avoid sanding because of
this problem.

Bob.