Sounds like an intermittent/poor connection at a terminal block, or a faulty terminal block itself, the way the article read. In my experience working around high and low voltage electronics a lot in both of my current and prior professions, loose connections are the culprit of service requests/general berkery like 90% of the time. Literally in the Doosan Troubleshooting manual for their CNC machines, they mention using a pole inside the 24vDC cabinet and jostling wires to see if the issue(s)/faults can be reproduced.
In reply to golfduke :
That is also a frequent troubleshooting technique for automatic doors as well. Grab a handful of wires and shake them to see what happens.
P3PPY
SuperDork
9/18/24 1:41 p.m.
That's fairly standard practice with all sorts of malfunctioning electric things. Works wonders, too
Mr_Asa
MegaDork
9/19/24 9:01 a.m.
Some of the decisions they made...
https://www.npr.org/2024/09/18/nx-s1-5117681/us-justice-suit-baltimore-key-bridge-collapse-dali-ship
The primary transformer that powered the bridge and engine room was known to have had issues in the past. They redneck'd a welded brace to help prevent vibration. (Feels like that might be a good solution when you are underway, but not leaving port?)
The crew also disabled backup transformers, and the backup-backup generator had a cheapass fuel pump installed that wouldn't turn on automatically with power loss.
I know its just one bad decision after another and not anything actively malicious, but it almost feels like someone wanted the ship to fail at some point
