A fire occurred in the port engine room of a semi-submersible drilling unit whilst carrying out exploration drilling in Norwegian waters. The fire was indicated by alarms in the control room and confirmed by attending personnel. The engine room was successfully isolated manually after approximately 35 minutes, and the halon system was then activated. This, however, did not completely extinguish the fire, which re-ignited. The fire was eventually extinguished some 7 hours after the initial alarm.
Officer of the Watch 