All the key ingredients for a navigational accident were in place long before the Malta-flagged oil and chemical tanker Ovit grounded on the Varne Bank in the Dover Strait in the early morning darkness of 18 September 2013. The report on the incident from the Marine Accident Investigation Branch, MAIB, identifies several layers of factors, not all of them on the bridge of the Ovit, that led to the grounding without which it would not have occurred.
The vessel was equipped with a Maris 900 ECDIS supplied and installed by STT Marine Electronics in Istanbul. An installation certificate issued on 1 April 2011 indicates that all systems had been properly configured and tested. They had not.