Crush incident report involving a falling hatch cover on SMN Explorer published

The accident was the result of procedural inadequacies and a lapse of supervision.
The accident was the result of procedural inadequacies and a lapse of supervision.

A crewman from the Liberian registered general cargo vessel, SMN Explorer, died when he was crushed by a falling hatch cover. The crewman was part of a working party stowing cargo slings used for the discharge of the ship’s cargo. The accident occurred when the crewman climbed up the inside of the open hatch cover after its locking pins had been removed.

The accident was the result of procedural inadequacies and a lapse of supervision. The investigation identified that the vessel’s safety management system was immature and the safety culture on board the vessel was weak. Risk assessments had not been conducted for routine tasks and a safe system of work had not been developed for opening and closing the forecastle (fo’c’s’le) stowage space hatch cover.

Safety issues

– the crewman walked under, and climbed up an unsecured hatch cover;
– the accident occurred because the Continue reading “Crush incident report involving a falling hatch cover on SMN Explorer published”

Ship surveying is being revolutionised by drone technology says ClassNK

Last September, ClassNK designated ‘survey technology innovation’ as one of four focus areas listed in its new R&D Roadmap, with drones identified as a key technology.
Last September, ClassNK designated ‘survey technology innovation’ as one of four focus areas listed in its new R&D Roadmap, with drones identified as a key technology.

As part of an on-going focus on safety in enclosed spaces, ClassNK describes how it has carried out detailed drone tests to revolutionize ship surveying. In spring this year, ClassNK introduced guidelines on the use of drones in class surveys, covering procedures and technical considerations for safe operation, as well as requirements for drone service suppliers.

Although drones with multiple propellers on the same plane are currently the most widespread design, research is taking place into alternative arrangements with tilt rotors and propellers in a tetrahedral configuration. Meanwhile, significant progress has been seen in autonomous operations using higher precision positioning, and considerable advances in machine image recognition and processing.

Continue reading “Ship surveying is being revolutionised by drone technology says ClassNK”

Lack of communication led to serious main engine problems is key finding

Ship Engine - Photo credit: Swedish P&I Club
Photo credit: Swedish P&I Club

The Swedish P&I Club has published a case study following serious damage caused to a ship’s main engine. As a consequence of poor communication water contaminated the lubrication oil causing severe damage to the engine.

Engineers on a bulk carrier were conducting scheduled maintenance on one of the ballast pumps. They had closed all the isolating valves to the ballast pump and put up notices about the job in the engine room and engine control room, but not on the bridge. They didn’t finish the job on the first day, so continued the next day.

The next day the Master asked an officer to print out the alarm list for the ballast water management system, prior to arriving at the next port as a port state inspection would take place. To get the list the officer had to start the ballast water management system, which he did.

The bilge high level alarm was activated in the engine room. An oiler checked the bilges and could see Continue reading “Lack of communication led to serious main engine problems is key finding”

Renault eyes wind powered ships to cut supply chain carbon

Neoline's plans to develop industrial-scale wind-powered freight services have led to the design of a commercial demo
Neoline’s plans to develop industrial-scale wind-powered freight services have led to the design of a commercial demo

Major French vehicle manufacturer, Groupe Renault, has signed a three year agreement with Neoline, a start up that says it aims to become the first modern shipowner to fully embrace energy efficiency by relying on wind power as its primary energy source. Nearly 60% of Renault’s parts and vehicles are transported by sea.

“Groupe Renault’s objective is to reduce the environmental impact of each vehicle throughout its entire life cycle, from parts transportation up to delivery and end-of-life processing,” says Jean-Philippe Hermine, Vice President, Strategic Environmental Planning Groupe Renault. “In the context of our strategy to explore new sustainable mobility solutions and to continue along the road to reducing our carbon footprint, the solution designed by Neoline, which combines energy efficiency and operational relevance, has truly captured our attention”.

Jean Zanuttini, CEO of Neoline, declared: Continue reading “Renault eyes wind powered ships to cut supply chain carbon”

Problems associated with hidden engine room hot spots

It is recommended to enhance prevention and protection against such fires and that a proactive inspection and evaluation programme is incorporated as part of the ongoing planned maintenance schedule to ensure all piping systems and equipment is maintained corrected and that design is appropriate.
It is recommended to enhance prevention and protection against such fires and that a proactive inspection and evaluation programme is incorporated as part of the ongoing planned maintenance schedule to ensure all piping systems and equipment is maintained corrected and that design is appropriate.

Article written by Joe Maguire, Technical Manager at Skuld P&I Club. The Club would like to draw attention to the continued dangers of fires which originate in the machinery space. Specifically, where the cause of the fire is as a result of a flammable liquid spraying onto a hot surface.

Typical root causes for such incidents have been identified as:

– Missing pipe brackets/supports on oil systems leading to increased vibrations and subsequent cracks or even breakage of the oil piping system.
– Missing cup over the fuel injector valve.
– Original insulation or screening of hot surfaces was not maintained correctly.
– Original insulation or screening of hot surfaces was not sufficient for preventing oil spray onto hot surfaces.
– Insulation soaked with oil caught fire when sufficiently heated up.
– Oil leakages from engine components like exhaust valve indicators spraying onto the exhaust manifold.

It is recommended to enhance prevention and protection against such fires and that a proactive Continue reading “Problems associated with hidden engine room hot spots”

The dangers of carrying nickel ore cargo and the associated risks are highlighted by The West of England P&I Club

A nickel Ore cargo ship - Photo credit: Shipspotting
Photo credit: Shipspotting

The West of England P&I Club has warned operators and others involved of the dangers of carrying nickel ore. Carrying nickel ore can be dangerous, because of the risk of liquefaction of the cargo on passage when the moisture content is higher than the cargo’s Flow Moisture Point (FMP).

After a number of ships being lost, with liquefaction of their nickel ore cargoes suspected of being the cause, the West of England Club published a Notice some years ago addressing the Dangers of Carrying Nickel ore. This Notice is still in forced and was re-issued as No.13 2017/2018 – Dangers of Carrying Nickel Ore from Indonesia and the Philippines – Mandatory Notification Requirements (re-issued).

The Club reminds operators of the risk of liquefaction with this cargo, as showcased by the loss of the ‘Emerald Star’, which claimed the lives of 11 seafarers in October 2017.

In addition, the Club has been informed of Continue reading “The dangers of carrying nickel ore cargo and the associated risks are highlighted by The West of England P&I Club”

Bahamas Maritime Authority releases safety bulletin following fatality investigation regarding a nitrogen cylinder

The examination showed that the damaged nitrogen cylinder had suffered significant corrosion at the point of failure.
The examination showed that the damaged nitrogen cylinder had suffered significant corrosion at the point of failure.

The Bahamas Maritime Authority issued a safety alert regarding the potential serious risk for safety on board a ship where nitrogen cylinders are used as a stored kinetic energy system for launching lifeboats. This alert was issued after the authority obtained information from an ongoing maritime incident investigation conducted by the Transport Accident Investigation Commission, New Zealand.

The vessel had hydraulically powered davits with six power packs, three on each side of the vessel. A stored energy system consisted of a piston accumulator and a bank of four high pressure (180-210 Bar) nitrogen cylinders were fitted to each lifeboat launching davit.

In February 2017, one of the nitrogen cylinders of a stored energy system onboard exploded while being topped up to maintain the correct pressure. A crew member died as a result of the explosion. The findings of the investigation indicate that significant corrosion affected the structural integrity of the cylinder.

The remains of the exploded nitrogen cylinder and other three cylinders from the same Continue reading “Bahamas Maritime Authority releases safety bulletin following fatality investigation regarding a nitrogen cylinder”

New method to assess structure durability of aged ships announced by Ship Structure Committee

The method developed utilizes a ship specific 3-D hydrodynamic model to simulate the ship’s rigid body dynamic response to wave conditions, measuring the resulting ship motions and pressure distribution on the hull.
The method developed utilizes a ship specific 3-D hydrodynamic model to simulate the ship’s rigid body dynamic response to wave conditions, measuring the resulting ship motions and pressure distribution on the hull.

The Ship Structure Committee is pleased to announce the publication of a new report, SSC-474, titled Structural Assessment of Aged Ships, authored by Mr. Gregory Walker, Mr. Brendan Connell and Mr. Sean Kery of CSRA. The detailed 75 page report is available for free using the link at the end of the article below.

The report describes the development of an assessment process to accurately predict the survivability of a corrosion-degraded ship in specific wave conditions. The method developed utilizes a ship specific 3-D hydrodynamic model to simulate the ship’s rigid body dynamic response to wave conditions, measuring the resulting ship motions and pressure distribution on the hull. Pressure and acceleration data from the hydrodynamic model is then input into a Continue reading “New method to assess structure durability of aged ships announced by Ship Structure Committee”

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.
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.

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 Continue reading “Broken valve causes oil spill while bunkering”

RRS Sir David Attenborough polar research ship launched

David Attenborough launching the shipThe UK’s polar research ship RRS Sir David Attenborough was launched into the River Mersey, Birkenhead on Saturday July 14.

Once in the river, tugs towed the 129-meter (423-foot) 10,000 ton hull to Cammell Laird’s wet basin for the next stages of construction. The polar research ship is scheduled to commence operation in 2019.

More than 3,000 shipyard workers, engineers, scientists and maritime industry experts gathered with special guest speakers, including world-renowned broadcaster Sir David Attenborough, to celebrate.

Continue reading “RRS Sir David Attenborough polar research ship launched”

Low speed diesel engines save on claims is the finding of a recent Swedish Club study

Statistically, a vessel will suffer between one and two incidences of main engine damage during its life time, according to the club
Statistically, a vessel will suffer between one and two incidences of main engine damage during its life time, according to the club

In a recent study the Swedish Club has warned that vessels propelled by medium or high speed diesel engines have a claims frequency two and a half times higher than slow speed engines with an average claims cost of about $650,000.

Statistically, a vessel will suffer between one and two incidences of main engine damage during its life time, according to the club. However, the incidence rate varies by vessel class (and engine type).

“Our research shows that bulkers and tankers are the best performers for claims cost,” said senior technical advisor Peter Stalberg. “Most of these vessels have slow speed engines. Conversely passenger vessels/ferries have the highest frequency of main engine claims – 0.066 claims per vessel and year. Often these vessels have multiple medium speed engine installations.”

Stalberg advises that when shipowners have Continue reading “Low speed diesel engines save on claims is the finding of a recent Swedish Club study”

Flexible mobdock repair method for underwater shaft seal repairs developed by Hydrex

Diver/technician re-welding the rope guard after shaft seal replacement
Diver/technician re-welding the rope guard after shaft seal replacement

Hydrex has developed a flexible mobdock repair method that enables the underwater replacement of all types and sizes of shaft seals. This technology has been successfully used by Hydrex diver/technicians for over a decade. It allows ship owners to keep their vessel sailing, saving precious time and money.

Damaged stern tube seals will cause an increasing amount of oil leaking or water ingress as the damage worsens. By replacing the seals when the damage is first discovered, Hydrex keeps the down time low. The ship can keep its schedule as seal repairs can be performed during cargo operations. This is done by creating a dry underwater working environment around the shaft.

It is not always straightforward to replace seals, because there can be quite a bit of variation in the configurations of the stern tube itself. There can also be complications with the liners, which can be worn down and show ruts. All this is routinely handled by Hydrex teams on the jobs.

In this article you can find a short summary of some of the recent Continue reading “Flexible mobdock repair method for underwater shaft seal repairs developed by Hydrex”

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