BROKEN VALVE CAUSES OIL SPILL WHILE BUNKERING
The Swedish P&I Club has described a case of an oil spill during a vessel’s bunkering operations which led to an oil spill, the cause of which was a broken valve. Following investigation, the Club recommended that all involved parties should be informed when tanks are switched and that the crew must always ensure the valves are completely shut and working.
The incident The vessel was loading in port and had also planned to bunker fuel using shore trucks. The plan was to load the fuel into port tank 2 and fill it 96%, but the chief engineer changed this just before loading and instead wanted to load port and starboard 3 tanks. The plan was to fill these tanks 90%. The number 3 tanks were half the size of the port and starboard 2 tanks.
The bunker system was lined up to bunker the port 3 tank. Deck scuppers were put in place on deck. The chief engineer then met the truck driver to agree on basic hand signals before connecting the hose to the ship’s manifold. The plan was to have the 3rd engineer taking manual soundings from the deck, as the chief engineer didn’t think the automatic sounding system in the engine control room was accurate enough.
It was later found that the valve to port tank 3 was not completely shut and oil had entered the tank until it overflowed.
Safety issues Always ensure that all involved parties are informed when tanks are switched. Reduce the flow from shore or stop the bunkering when switching tanks. - It is essential to verify that the valves are completely shut and in working condition. This should preferably also be done manually to verify that the valve is closed.
- It is also essential that the tank system is working correctly and that it can be monitored with confidence in the engine control room. Just trusting manual soundings is not appropriate. It would also have been appropriate to sound the port tank when returning to deck to ensure the level was not increasing.
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ISO UPDATES GUIDELINES FOR SEA ANCHORS ON SURVIVAL CRAFT AND RESCUE BOATS
A sea anchor is a vital component to a rescue boat, reducing the likelihood of it drifting away or spinning around, and keeps it steady in the wind.
As more people are heading out to sea over summer, safety both onboard and overboard is under the spotlight. For this reason, an ISO has been updated for the effectiveness of sea anchors for rescue boats known as ‘ISO 17339:2018, Ships and marine technology – Life saving and fire protection – Sea anchors for survival craft and rescue boats.’
A sea anchor is a vital component to a rescue boat, reducing the likelihood of it drifting away or spinning around, and keeps it steady in the wind. The updated ISO for the performance and safety of sea anchors brings them in line with the IMO’s International Life-Saving Appliance Code.
The International Life-Saving Appliance Code prescribes the carriage and use of sea anchors for survival craft and rescue boats, yet the revised recommendation on testing of lifesaving appliances does not provide requirements of performance and testing procedure for the sea anchors. This document addresses those areas, which the IMO recommendation does not address, in order to enable consistent implementation by maritime Administrations.
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The Report • September 2018 • Issue 85 | 17
Safety Briefings
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