CSL Thames

20 Mar 2012 Resource

Safety contour alarm inoperative; lack of knowledge of master and officers

The MAIB investigation found that CSL Thames ran aground after the third officer had altered the vessel’s course to starboard of the planned track to avoid another vessel. He did not notice that the alteration would take CSL Thames into shallow water, and the audio alarm on the electronic chart display and information system (ECDIS) that should have alerted him to the impending danger was inoperative. Further, the master’s and other watchkeepers’ knowledge of the vessel’s ECDIS  was insufficient and therefore no-one within the bridge team questioned the absence of the ECDIS audio alarm, or recognised that the system’s safety contour  setting was inappropriate for the planned voyage.

MAIB Report CSL Thames (March 2012)

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