A far-reaching accident investigation report into the January 2015 loss of the 2,327-dwt chemical tanker Cemfjord (built 1984) has questioned whether the master’s fatal decision to sail through hazardous waters and weather may have been affected by fatigue.

At the time of the loss, the Cemfjord was the only vessel to sail through “hazardous tidal races” and “worst possible environmental conditions” present in the Pentland Firth in the north of Scotland, as described by the UK’s Marine Accident Investigation Branch (MAIB) report.

But