The UK Marine Accident Investigation Branch (MAIB) has published a report on the tragic capsizing of the tug Biter, which resulted in the loss of two crew members while assisting the passenger vessel Hebridean Princess near Greenock, Scotland, on February 24, 2023. The incident occurred as Biter was attached to the stern of Hebridean Princess, which was approaching James Watt Dock. Unfortunately, the crew was unable to escape from the overturned tug.
The investigation revealed that the marine pilot’s training did not adequately prepare them for operations with conventional tugs. Incomplete communications between the tug and passenger vessel masters hindered their ability to challenge the pilot’s decisions. The passenger vessel’s speed increased the load on the tug’s lines, likely leading to the failure of the gob rope, which contributed to Biter’s rapid capsizing and left the crew with little time to release the towlines. Additionally, an open hatch compromised the vessel’s watertight integrity.
MAIB emphasized the need for clear communication and understanding among the vessel’s master, marine pilot, and tug crew. Recommendations have been made to Clyde Marine Services to enhance safety protocols and training for tug masters, as well as to Clydeport Operations Limited for an independent review of marine pilot training. Professional associations are also urged to develop guidance addressing the safety issues highlighted in the report.
