Real Life Incident: Human Error Causes Loss Of Power On DP Vessel

Real Life Incident: Human Error Causes Loss Of Power On DP Vessel

Crew on a DP vessel were performing maintenance on the main power distribution bus circuit breakers; maintenance which was several years overdue. The vessel’s engineer attempted to restore power to these thrusters by closing the bus tie without synchronising two live buses (crash sync), causing a total loss of thrust and therefore loss of position.