Nov. 24: TSB Warns of Cargo Crane Failures on Ships


After a “catastrophic failure” aboard a cargo ship in Québec over the summer, the Transportation Safety Board of Canada issued a warning to vessel owners. The bulk carrier was docked when one of its cargo cranes suffered a failure that sent the cabin and jib assemblies crashing down into a cargo hold, injuring the crane operator. The TSB traced the failure to a broken slewing ring bearing. The crane involved in the incident was an electro-hydraulic jib crane and its slewing ring bearing assembly was manufactured by Dalian Metallurgical Bearing Co. Ltd. of China. Vessel owners should take whatever measures considered appropriate to ensure the integrity of any similar unit in service aboard their ships.