If it ain’t broke fixing it may break it is the message from the US Coast Guard in a safety alert regarding embarkation hull ladder magnets after a State Pilot fell suffered concussion as he was boarding a vessel using its pilot ladder. In this case the modified magnet arrangement disconnected, fell, and hit the pilot on the head.
It wasn’t the first such accident to be caused by a modified magnet arrangement. Other incidents with injuries have occurred on other vessels at several different ports, says the USCG. In each instance the hull magnets were modified prior to the accident. Moreover, in all cases, after restoring the hull magnets to their original design no further problems were experienced.