Re: Stupid design decisions

From	rickman <gnuarm@gmail.com>
Newsgroups	comp.arch.embedded
Subject	Re: Stupid design decisions
Date	2017-01-31 02:10 -0500
Organization	A noiseless patient Spider
Message-ID	<o6pd5q$8cd$1@dont-email.me> (permalink)
References	(3 earlier) <o6o98q$phj$2@reader1.panix.com> <o6oaf6$g4n$1@dont-email.me> <o6oanq$6gh$1@reader1.panix.com> <o6ob90$j36$1@dont-email.me> <rm609c5t5fh0t24d1qnbjttcnkop8l92tp@4ax.com>

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On 1/31/2017 12:37 AM, Robert Wessel wrote:
>
> And how do three completely independent engines all lose oil pressure
> at roughly the same time?  Well, it seems the mechanic who serviced
> the chip detectors (basically a fancy version of the traditional
> magnetic drain plug on your car engine), serviced all three of them,
> and neglected to install the same gasket in each when he was
> reassembling them.

Pretty scary, no?  Now, consider that nuclear power plants are subject 
to that exact same sort of single point of failure mechanism.  I've 
mentioned this in a couple newsgroups before, but I don't think I've 
mentioned it here.  The North Anna nuclear power station in Virginia was 
hit by an earthquake a few years ago.  The station shut down and cut off 
from the outside power.  Six diesel generators start up to power the 
cooling water pumps.  After 15 or 20 minutes one engine fails.  When 
they later analyzed what happened they found the head gasket was 
installed incorrectly because... the installation *procedure* was 
written incorrectly.

That easily could have resulted in *all* the generators failing and both 
reactors in the power plant turning into another Fukushima.

-- 

Rick C

Thread

Stupid design decisions Robert Wessel <robertwessel2@yahoo.com> - 2017-01-05 21:14 -0600
  Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-01-06 12:27 -0700
  Re: Stupid design decisions rickman <gnuarm@gmail.com> - 2017-01-06 14:51 -0500
  Re: Stupid design decisions Grant Edwards <invalid@invalid.invalid> - 2017-01-06 20:22 +0000
    Re: Stupid design decisions David Brown <david.brown@hesbynett.no> - 2017-01-08 17:11 +0100
      Re: Stupid design decisions rickman <gnuarm@gmail.com> - 2017-01-08 17:10 -0500
        Re: Stupid design decisions Dimiter_Popoff <dp@tgi-sci.com> - 2017-01-09 11:30 +0200
          Re: Stupid design decisions rickman <gnuarm@gmail.com> - 2017-01-09 04:58 -0500
            Re: Stupid design decisions Dimiter_Popoff <dp@tgi-sci.com> - 2017-01-09 13:10 +0200
            Re: Stupid design decisions Clive Arthur <cliveta@nowaytoday.co.uk> - 2017-01-09 11:15 +0000
            Re: Stupid design decisions David Brown <david.brown@hesbynett.no> - 2017-01-09 13:48 +0100
        Re: Stupid design decisions Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> - 2017-02-08 17:40 -0500
      Re: Stupid design decisions Robert Wessel <robertwessel2@yahoo.com> - 2017-01-10 21:42 -0600
  Re: Stupid design decisions Tim Wescott <seemywebsite@myfooter.really> - 2017-01-06 15:33 -0600
  Re: Stupid design decisions Ed Prochak <edprochak@gmail.com> - 2017-01-30 12:28 -0800
    Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-01-30 13:52 -0700
      Re: Stupid design decisions Grant Edwards <invalid@invalid.invalid> - 2017-01-30 20:55 +0000
        Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-01-30 14:18 -0700
          Re: Stupid design decisions Grant Edwards <invalid@invalid.invalid> - 2017-01-30 21:20 +0000
            Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-01-30 14:31 -0700
              Re: Stupid design decisions Robert Wessel <robertwessel2@yahoo.com> - 2017-01-30 23:37 -0600
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-01-30 23:20 -0700
                Re: Stupid design decisions Ed Prochak <edprochak@gmail.com> - 2017-01-30 22:29 -0800
                Re: Stupid design decisions rickman <gnuarm@gmail.com> - 2017-01-31 02:10 -0500
        Re: Stupid design decisions Hans-Bernhard Bröker <HBBroeker@t-online.de> - 2017-01-30 22:30 +0100
        Re: Stupid design decisions rickman <gnuarm@gmail.com> - 2017-01-31 02:00 -0500
      Re: Stupid design decisions Ed Prochak <edprochak@gmail.com> - 2017-01-30 22:18 -0800
        Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-01-30 23:36 -0700
        Re: Stupid design decisions jladasky@itu.edu - 2017-01-31 16:01 -0800
          Re: Stupid design decisions Paul <paul@pcserviceselectronics.co.uk> - 2017-02-02 09:47 +0000
            Re: Stupid design decisions rickman <gnuarm@gmail.com> - 2017-02-02 06:35 -0500
              Re: Stupid design decisions Robert Wessel <robertwessel2@yahoo.com> - 2017-02-02 16:26 -0600
                Re: Stupid design decisions rickman <gnuarm@gmail.com> - 2017-02-02 19:49 -0500
                Re: Stupid design decisions Robert Wessel <robertwessel2@yahoo.com> - 2017-02-03 01:27 -0600
                Re: Stupid design decisions Les Cargill <lcargill99@comcast.com> - 2017-02-03 07:18 -0600
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-03 10:14 -0700
                Re: Stupid design decisions Rob Gaddi <rgaddi@highlandtechnology.invalid> - 2017-02-03 10:12 -0800
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-03 14:10 -0700
                Re: Stupid design decisions Paul <paul@pcserviceselectronics.co.uk> - 2017-02-04 11:15 +0000
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-04 13:52 -0700
                Re: Stupid design decisions Grant Edwards <invalid@invalid.invalid> - 2017-02-05 04:36 +0000
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-04 21:55 -0700
                Re: Stupid design decisions Paul <paul@pcserviceselectronics.co.uk> - 2017-02-05 21:39 +0000
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-05 15:55 -0700
                Re: Stupid design decisions Paul <paul@pcserviceselectronics.co.uk> - 2017-02-05 23:38 +0000
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-05 21:25 -0700
                Re: Stupid design decisions Les Cargill <lcargill99@comcast.com> - 2017-02-04 17:26 -0600
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-04 16:56 -0700
                Re: Stupid design decisions Les Cargill <lcargill99@comcast.com> - 2017-02-03 21:40 -0600
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-03 21:48 -0700
                Re: Stupid design decisions Paul <paul@pcserviceselectronics.co.uk> - 2017-02-04 11:03 +0000
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-04 13:00 -0700
                Re: Stupid design decisions Robert Wessel <robertwessel2@yahoo.com> - 2017-02-05 01:49 -0600
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-05 10:43 -0700
                Re: Stupid design decisions Paul <paul@pcserviceselectronics.co.uk> - 2017-02-05 21:31 +0000
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-05 15:22 -0700
                Re: Stupid design decisions Paul <paul@pcserviceselectronics.co.uk> - 2017-02-05 23:24 +0000
                Re: Stupid design decisions Grant Edwards <invalid@invalid.invalid> - 2017-02-06 03:51 +0000
                Re: Stupid design decisions Paul <paul@pcserviceselectronics.co.uk> - 2017-02-06 10:11 +0000
                Re: Stupid design decisions rickman <gnuarm@gmail.com> - 2017-02-06 20:07 -0500
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-05 21:08 -0700
                Re: Stupid design decisions mac <acolvin@efunct.com> - 2017-02-04 14:42 +0000
                Re: Stupid design decisions Robert Wessel <robertwessel2@yahoo.com> - 2017-02-05 02:00 -0600
                Re: Stupid design decisions Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-02-05 09:11 +0000
                Re: Stupid design decisions Robert Wessel <robertwessel2@yahoo.com> - 2017-02-05 03:51 -0600
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-05 11:10 -0700
                Re: Stupid design decisions Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-02-05 22:22 +0000
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-05 16:01 -0700
                Re: Stupid design decisions Don Y <blockedofcourse@foo.invalid> - 2017-02-05 11:03 -0700
    Re: Stupid design decisions Robert Wessel <robertwessel2@yahoo.com> - 2017-01-30 23:44 -0600

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