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At 1400 on 28 August, Massive Tide departed Dampier with a load of bulk cargo for the drill rig Ensco 106. After clearing the berth, the master handed over the watch to the second mate who then remained in charge of the watch for the transit to the drill rig.

The master took over the watch when the ship reached the drill rig at 1950 and the second mate remained on the bridge to operate the bulk-board for the cargo transfer. After the completion of cargo operations, the master handed the watch back to the second mate, and then went to bed.

At 0100 on 29 August, the ship departed the drill rig. The second mate checked the global positioning system (GPS) unit, and then set the autopilot to follow a course of 129° (T). The weather was good with light winds, slight seas and visibility of about eight miles.

At 0200 and 0400, the second mate recorded the ship's GPS position in the deck log book, but did not plot either position on the navigational chart. At about 0400, the bridge lookouts changed watches but the second mate decided to leave the chief mate in bed until the ship reached the Dampier Sea Buoy.

At 0445, Massive Tide was making good a speed of 9.8 knots when it grounded on the shoals approaching the western shore of Rosemary Island.

The crew were called out and checks of the ship, its machinery and the surrounding area revealed that no damage or pollution had occurred. Immediate attempts to refloat the ship were unsuccessful and plans were put in place to try again on the next high tide. At 1035, Massive Tide floated free without assistance.

The report identifies a number of contributing factors and makes recommendations to address them.

Download Final Report
[ Download PDF: 2.35MB]
General details
Date: 29 August 2006 Investigation status: Completed 
Time: UTC +8  
Location:Rosemary Island, Off WA Coast Investigation type: Occurrence Investigation 
State: Western Australia Occurrence type: Grounding 
Release date: 16 March 2007  
Report status: Final Occurrence category: Incident 
 Highest injury level: None 
Vessel details
Vessel: Massive Tide 
Flag: VAN 
IMO: 8102531 
Type of Operation: Tug/Supply ship 
Damage to Vessel: Minor 
Departure point:Dampier, WA
Departure time:1600
Destination:Dampier, WA
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Last update 19 May 2016