Muros VslPhoto

Summary
In the early hours of 3 December 2016, the bulk carrier Muros ran aground on Haisborough Sand, 8 miles off the Norfolk coast and the master’s attempts to manoeuvre the vessel clear were unsuccessful due to a falling tide. The vessel was re-floated 6 days later and was towed to Rotterdam for repair. When

Muros grounded, the vessel was following a passage plan shown on its electronic chart and display information system (ECDIS). The plan had recently been revised on the ECDIS by the OOW who then used the system to monitor the vessel’s position.

Safety Issues
The revised passage plan was unsafe

The visual check of the revised route was not conducted on the ECDIS at an appropriate scale

The master directed the OOW to revise the route but he did not see or approve it

ECDIS safeguards were ignored, overlooked or disabled

The OOW’s performance was probably adversely affected by a low state of alertness

ECDIS use on board Muros was not as envisaged by regulators or equipment manufacturers

Recommendations
No recommendations have been made but MAIB has started a safety study to characterise and understand the way ECDIS is currently being used on board ships.

Source: MAIB - UK