Collision between stern trawlers Karen and Sapphire Stone resulting in Karen sinking

Location: Off Cambeltown, Scotland.

Accident Investigation Report 20/2014

Investigation report into marine accident including what happened, safety lessons and recommendations made:

Karen-SapphireStone.pdf (2,418.14 kb)



At 1637 UTC on 22 January 2014, the fishing vessels Sapphire Stone and Karen collided. At the time of the collision, Sapphire Stone was steering a north-westerly course towards Campbeltown, Scotland to land its catch, while Karen was towing its nets on a westerly course. Karen was struck on its port quarter and was severely damaged. Its hull was opened to the sea, which caused the aft crew accommodation and main engine room to flood rapidly, resulting in its foundering within 3 minutes of the collision occurring. Sapphire Stone suffered minor damage to its stem post. Attempts by Karen’s skipper to send a DSC distress alert were unsuccessful due to the speed with which the vessel foundered. However, Karen’s crew were successfully rescued by the crew of Sapphire Stone, and the coastguard was alerted by Karen’s EPIRB, which activated after the vessel sank.

Safety lessons

  • neither skipper was keeping an effective visual lookout, and that radar contacts were not being systematically observed, or plotted, to ascertain whether a risk of collision existed

  • Sapphire Stone’s skipper had become over-reliant on AIS information displayed on his chart plotter. MGN 313 (F) and MGN 324 (M+F) issued by the MCA explain the need for maintaining a proper lookout, and warn of the danger of over-reliance on chart plotters and AIS target information[footnote 1]


Recommendations have been made to the skippers of both vessels to heed the contents of extant MCA guidance to the fishing industry.

Published: 24 July 2014

  1. Also see correction notice issued by MCA

Published 23 January 2015