News

Ethylene vapors activate carbon monoxide alarm says safety alert

A certified marine chemist traced the source of the vapors to an eight inch crack on a cargo vapor line
A certified marine chemist traced the source of the vapors to an eight inch crack on a cargo vapor line

The USCG has published a safety alert informing marine inspectors that ethylene vapors on LNG carriers can activate Carbon Monoxide alarms. Specifically, during an examination of a LNG carrier whose cargo tanks contained ethylene vapors, PSC Officers (PSCOs) received alarms on their portable four gas meters giving a reading of 60 to 100 parts per-million (PPM) Carbon Monoxide (CO).

A certified marine chemist traced the source of the vapors to an eight inch crack on a cargo vapor line. PSCOs initially thought the alarm was related to a combustion event and did not suspect the ethylene vapors were the source, because they did not get a Lower Explosive Limit (LEL) reading on their monitors.

The chemist indicated that the LEL most likely never alarmed because of high winds on deck. He further explained that the molecular weight of Ethylene (28 g/mol) was identical to the molecular weight of CO which accounted for the CO PPM readings. USCG personnel contacted the manufacturer who confirmed that Continue reading “Ethylene vapors activate carbon monoxide alarm says safety alert”

Urgent safety lessons issued by MAIB after the failure of a throw bag rescue line

RIBER, and several other suppliers of throw bag rescue lines, import the complete manufactured product pre-branded with their company’s logo.
RIBER, and several other suppliers of throw bag rescue lines, import the complete manufactured product pre-branded with their company’s logo.

A defective throw bag rescue line was discovered while Warrington Rowing Club was conducting boat capsize drills for new rowers at Halton Baths in Cheshire, UK. A 15m long polypropylene rescue line in a throw bag, supplied by Riber Products Limited (RIBER), parted while a young person in the water was being pulled to the side of the pool during a simulated rescue. There were no injuries. The rowing club safety advisor subsequently found another throw bag with a defective rescue line that had been purchased from the same supplier. RIBER was informed and the company contacted its customers after identifying a batch of 208 throw bags that could be at risk. A further three defective rescue lines have been identified as a consequence of the customer warning notice posted on Facebook. Considering the potentially serious consequences of a throw bag rescue line failing in a real lifesaving situation, the MAIB is conducting a safety investigation.

Initial findings
On inspection, the defective RIBER throw bag rescue lines identified by Warrington Rowing Club were found to have been made up of sections of polypropylene rope fused together, which broke easily at the joint when put under tension. One line was constructed of two sections of rope fused together, Continue reading “Urgent safety lessons issued by MAIB after the failure of a throw bag rescue line”

LATTICE Technology secures first commercial sale of its on-board LPV LNG Fuel tank

LATTICE technology’s proprietary LPV containment system for LNG has been approved by seven international classification societies following the successful test of four prototype tanks.
LATTICE technology’s proprietary LPV containment system for LNG has been approved by seven international classification societies following the successful test of four prototype tanks.

LATTICE Technology’s CEO Hoonjin Park confirmed on May 23rd that the company has secured the order for a 15m3 a lattice pressure vessel (LPV® ) LNG fuel tank to be installed onboard a newbuild Port Cleaning Ship to assume service for the Ulsan Port Authority during 2019. The LPV® tank is a Type C-equivalent pressure vessel based on proprietary design by LATTICE Technology. This will be the first commercial contract for a LPV as well as the first LNG-fueled, public service vessel in South Korea.

The Port Cleaning Ship is the first project following the Korean government’s recent assertion that it will actively boost eco-friendly LNG-fuelled shipping by ordering LNGfuelled public service ships and supporting use of LNG-fueled, commercial ships. LATTICE Technology is proud to have been chosen to deliver its unique LPV LNG fuel tank for this project. This LPV is designed for 9 Continue reading “LATTICE Technology secures first commercial sale of its on-board LPV LNG Fuel tank”

Incorrect oxygen welding gas hose led to fire

The hose had been recently replaced, but the replacement hose was a hydraulic oil service hose with oxygen fittings.
The hose had been recently replaced, but the replacement hose was a hydraulic oil service hose with oxygen fittings.

In its latest Safety Flashes, IMCA presents a case of a fire due to incorrectly selected oxygen welding gas hose, during a routine cutting job onboard a ship. There were no injuries or ship damage, but investigation later revealed that the hose had been recently replaced with one that did not comply with ISO 14113 specification.

The incident
The ship’s welder opened the Oxygen and Acetylene gas bottle valves in order to do a cutting job on deck. These gas bottles were attached to the vessel’s integrated welding gas system. Opening the valve on the Oxygen bottle caused an explosion to a short, high pressure hose delivering oxygen from the bottle to the oxygen gas regulator. The end of the hose caught fire and was quickly extinguished by turning off the oxygen bottle. Nobody was injured and the only damage was to the hose that completely separated.

Findings
The hose had been recently replaced, but the replacement hose was a hydraulic oil service hose with oxygen fittings. The replacement hose was not Continue reading “Incorrect oxygen welding gas hose led to fire”

Sinking raises safety issues on bilge alarms

The failure of engine cooling system pipework is one of the most common causes of flooding on small fishing vessels
The failure of engine cooling system pipework is one of the most common causes of flooding on small fishing vessels

In its latest Safety Digest, the UK MAIB provides learnings about an 8.13m fibreglass fishing vessel that was engaged in picking up its fleets of creels when it began to take on water and subsequently sank. The skipper, who was working alone, managed to deploy the boat’s liferaft and climb into it as the boat was sinking and was later rescued without injuries.

The incident
The skipper went out to sea shortly after daybreak to recover his two fleets of creels. The weather was good. As soon as he arrived at the fishing grounds, he hauled in the first fleet of creels and stowed it on the aft end of the deck. He then headed at speed toward the second fleet of creels.

Continue reading “Sinking raises safety issues on bilge alarms”

Are ‘Smart Bolts’ the thing of the future?

Intelligent wireless bolts in wind turbines or satellites may be able to let the operator know when something is wrong
Intelligent wireless bolts in wind turbines or satellites may be able to let the operator know when something is wrong

In the future, intelligent wireless bolts in wind turbines or satellites may be able to let the operator know when something is wrong. This could reduce the risk of human injuries and save cost.

A research team at NTNU in Gjøvik is working to create bolts that send an alert when something is not as it should be or when maintenance is needed. Each bolt must be able to contact a control center, which will receive messages from all intelligent bolts of this type in all installations around the world.

The team working on these wireless bolts includes Professor Michael Cheffena, two fellows and the manufacturer Dokka Fasteners. The vision of the research team is to develop wireless sensors to be installed inside the bolts. If the sensors detect that something is Continue reading “Are ‘Smart Bolts’ the thing of the future?”

New innovation for inspecting mooring chains above and below water successfully trialled

The ground-breaking, new climbing robot, named RIMCAW (Robotic Inspection of Mooring Chains in Air and Water)
The ground-breaking, new climbing robot, named RIMCAW (Robotic Inspection of Mooring Chains in Air and Water)

A robot designed to hook onto, and scale up and down, large mooring chains, both at sub-sea level and in the air – with a non-destructive testing (NDT), ultrasonic imaging system on board that scans for critical defects – has recently undergone successful field trials.

The ground-breaking, new climbing robot, named RIMCAW (Robotic Inspection of Mooring Chains in Air and Water), is the result of a year-long, fast-track project that secured funding from Innovate UK, the Government agency behind finding and driving the innovations that will grow the UK economy. It is being delivered by collaborative partners Computerised Information Technology Ltd, Innovative Technology and Science Ltd, London South Bank University and TWI Ltd.

The inspection of large mooring chains, such as those being increasingly employed in Continue reading “New innovation for inspecting mooring chains above and below water successfully trialled”

Life Cell wins top boating magazine award

Life Cell wins top boating magazine award
New innovation wins top boating magazine award

Life Cell, which stores essential safety gear together in a buoyant, high-visibility floating case for quick and easy access in emergencies, has received a 2018 Top Product Award from Boating Industry magazine.

Designed by a survivor of a rapid sinking off the coast of Sydney, Australia, Life Cell is redefining how safety equipment is stored on boats and creating a new category of safety equipment in an attempt to save lives. It is like combining a life ring and a ditch kit in one device, two items that have undergone little innovation in recent history.

“Life Cell has had significant success in Continue reading “Life Cell wins top boating magazine award”

Wet damage the most costly claim for bulk carriers says The Swedish Club

Image Courtesy: Empros Lines
Image Courtesy: Empros Lines

The Swedish Club has published a report warning bulk carrier owners to pay extra attention to the basics. The Club has concluded that for bulk carrier operators, wet damage is the most costly claim type and the second most common claim that they experience.

The report is entitled Wet Damage on Bulk Carriers and has been prepared in cooperation with DNV GL, and MacGregor. It identifies heavy weather and leaking hatch covers as the most common and the most costly type of wet damage claim and the average cost for a wet damage cargo claim being almost $110,000.

Whilst weather routeing minimises the effects of Continue reading “Wet damage the most costly claim for bulk carriers says The Swedish Club”

UK MCA and RNLI test drones for search and rescue

Image credit: RNLI / Nigel Millard
Image credit: RNLI / Nigel Millard

The UK Maritime & Coastguard Agency (MCA) and the Royal National Lifeboat Institution (RNLI) have run a special week-long event to test the use of drones along a stretch of coastline at St Athan, Wales. The testing took place between 23 and 27 April. A selection of drones were used in four different search and rescue scenarios to explore how they could be used to help save lives in the future.

The scenarios were a shoreline search for a casualty, an offshore search for multiple casualties in the sea, a mud rescue and a communications blackspot where a drone is required to relay information between rescue teams and a casualty on a cliff.

Featuring RNLI lifeboats and an HM coastguard search and rescue helicopter, the scenarios explored Continue reading “UK MCA and RNLI test drones for search and rescue”

Denmark cancels registration fee for Danish Register in attempt to boost fleet size

The aim of this amendment is to increase the attractiveness of the Danish Flag
The aim of this amendment is to increase the attractiveness of the Danish Flag

The Danish Parliament adopted a legislative amendment on 26 of April, which cancels the registration fee for vessels in the Danish Registers of Shipping. The aim of this amendment is to increase the attractiveness of the Danish Flag.

Denmark supports that this measure will indeed increase the attractiveness of the Danish Flag, as it now offers the same benefits as foreign Flags.

This amendment also provides increased economic activity and international influence, when the Danish Flag attracts more vessels from both national as foreign shipowners.

The amendment will enter into force on the Continue reading “Denmark cancels registration fee for Danish Register in attempt to boost fleet size”

London P&I Club reveals key causes of recent container loss claims

Photo credit: London P&I Club
Photo credit: London P&I Club

A recent run of container loss claims by the London P&I Club has highlighted some of the common contributory factors that emerge as part of the investigation process. The Club noted that the subject of misdeclared container weights continues to be a problem. But with this particular run of claims it was the attending surveyor’s observations about cargo securing equipment that caught the eye.

In these cases, it became clear that several manual twist locks were not correctly locked at the time of the incident. The causes for this were considered to be two-fold – some twist locks were damaged (specifically with locking levers either bent or missing), or the units in service were a mixture of right and left-hand locking units, leading to confusion over the observed status of the twist lock.

Upon investigation, a number of container corner castings and container foundations showed no signs of having a locked twist lock forcibly removed during the collapse, the natural conclusion being Continue reading “London P&I Club reveals key causes of recent container loss claims”

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