Real Life Incident: Ships Wedged Together After Collision
A Ro-Ro vessel was underway at 19kt in good visibility with a single OOW on the bridge. The radar had auto-acquired a target ahead and, with three nautical miles to go, a collision risk alarm was indicated on the screen. No audible alarm sounded, because these had been muted on the radar.
The OOW did not notice this alarm and was now busy plotting the position on the chart and completing the logbook at the chart table, behind curtains.
About nine minutes after the alarm appeared on the radar screen the ro-ro vessel collided with an anchored container ship at an angle of almost 90° and became wedged into the side of the anchored vessel.
The personnel on the bridge of the container vessel did not see the ro-ro approaching and took no action to warn it.
Four days later the vessels were separated and salvage was initiated. The investigation was not able to determine why the OOW did not see the anchored container vessel in time to prevent the collision. Fatigue, complacency, distraction or lack of properly prioritised jobs could have played a role. The lack of a proper lookout on both vessels was undoubtedly a substantial contributing factor.
Lessons learned
- Permanently muting alarms is not best practice.
- The best ‘screen’ to be viewing when visibility is good is the bridge window.
- Bridge personnel on vessels at anchor have a duty to survey the traffic and take appropriate action if collision is imminent.
As edited from BEA (France) official report published July 2019
Reference: nautinst.org
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Disclaimer :
The information on this website is for general purposes only. While efforts are made to ensure accuracy, we make no warranties of any kind regarding completeness, reliability, or suitability. Any reliance you place on such information is at your own risk. We are not liable for any loss or damage arising from the use of this website.
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