<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p><font face="Candara">The report is here.</font></p>
<p><font face="Candara"><a class="moz-txt-link-freetext" href="https://www.ntsb.gov/investigations/Documents/Board%20Summary%20Contact%20of%20Containership%20Dali%20with%20Francis%20Scott%20Key%20Bridge.pdf">https://www.ntsb.gov/investigations/Documents/Board%20Summary%20Contact%20of%20Containership%20Dali%20with%20Francis%20Scott%20Key%20Bridge.pdf</a></font></p>
<p><font face="Candara">As always there are multiple things that
contributed to the accident. Some of them are design and others
are operator error.</font></p>
<p><font face="Candara">A good management system should have shown
the switches in Manual mode and the flushing pump active.</font></p>
<p><font face="Candara"><br>
</font></p>
<p><font face="Candara">You may recall one of the ferries lost all
propulsion some time ago. This was after a repair on one head on
one engine was completed and it was not run to temperature
afterwards.</font></p>
<p><font face="Candara">The repair had pinched an O-ring and it
after departure released steam, which the smoke detectors
assumed was smoke. Luckily the Electrical Engineer override the
standby generator that gave them some power and they could
release the anchor.</font></p>
<p><font face="Candara"><br>
</font></p>
<p><font face="Candara">What I found stranger was the engines shared
a common water cooling system ie they weren't redundant ie a
single point of failure.</font></p>
<p><font face="Candara"><br>
</font></p>
<p><font face="Candara">It was rather surprising that this accident
didn't recommend running the standby generator within confined
waterways.</font></p>
<p><font face="Candara">45 secs is a very long time, given that
Airport generators are required to start and take load within 15
secs.</font></p>
<p><font face="Candara">Airports run the standby generator during
low visibilty to ensure the changeover is less than 15 secs
during a power fail so they can avoid loosing landing lights.</font></p>
<p><font face="Candara"><br>
</font></p>
<p><font face="Candara">Mark</font></p>
<p><font face="Candara"><br>
</font></p>
<div class="moz-cite-prefix">On 21/11/2025 20:57, JR Borrett wrote:<br>
</div>
<blockquote type="cite"
cite="mid:07884004-55b5-4aaa-8228-bd81fec475ae@gmail.com">It would
be interesting to know the chain of events in terms of how failure
of the control system was caused by one wire coming loose. One
would have to question a design that appears to have such a
drastic single point failure. No doubt there's a whole lot more to
the story but I couldn't find much on a quick search.
<br>
<br>
Dick Borrett
<br>
<br>
On 20/11/25 08:45, Volker Kuhlmann wrote:
<br>
<blockquote type="cite">What happens when a container ship's
control systems fail
<br>
<br>
<a class="moz-txt-link-freetext" href="https://static.dw.com/image/70594739_1004.webp">https://static.dw.com/image/70594739_1004.webp</a> [1]
<br>
<br>
and the importance of doing a proper job with terminal blocks:
<br>
<br>
NTSB Animation - Containership Dali Contact with Francis Scott
Key Bridge
<br>
<a class="moz-txt-link-freetext" href="https://www.youtube.com/watch?v=bu7PJoxaMZg">https://www.youtube.com/watch?v=bu7PJoxaMZg</a>
<br>
<br>
1)
<a class="moz-txt-link-freetext" href="https://www.dw.com/en/us-baltimore-bridge-collapse-caused-by-one-faulty-wire/a-74799287?maca=en-rss-en-all-1573-rdf">https://www.dw.com/en/us-baltimore-bridge-collapse-caused-by-one-faulty-wire/a-74799287?maca=en-rss-en-all-1573-rdf</a><br>
<br>
</blockquote>
<br>
_______________________________________________
<br>
Chchrobotics mailing list <a class="moz-txt-link-abbreviated" href="mailto:Chchrobotics@lists.ourshack.com">Chchrobotics@lists.ourshack.com</a>
<br>
<a class="moz-txt-link-freetext" href="https://lists.ourshack.com/mailman/listinfo/chchrobotics">https://lists.ourshack.com/mailman/listinfo/chchrobotics</a>
<br>
Mail Archives: <a class="moz-txt-link-freetext" href="http://lists.ourshack.com/pipermail/chchrobotics/">http://lists.ourshack.com/pipermail/chchrobotics/</a>
<br>
Meetings usually 3rd Monday each month. See <a class="moz-txt-link-freetext" href="http://kiwibots.org">http://kiwibots.org</a>
for venue, directions and dates.
<br>
When replying, please edit your Subject line to reflect new
subjects.<br>
</blockquote>
</body>
</html>