ClassNK Update on Loss of 'MOL Comfort'

MarineLink.com
Sunday, November 03, 2013
MOL Comfort before sinking: Photo courtesy Indian Coast Guard

Based on both the results of its own independent investigation as well as the deliberations of the third meeting of the Committee on Large Container Ship Safety held on 28 October 2013, the ClassNK Casualty Investigation Team has released preliminary findings and safety measures resulting from the investigation into the causes of the sinking of the container ship 'MOL Comfort' as follows:

Preliminary Findings
Based on the presence of water-ingress in the bottom of the vessel’s midship at the outset of the casualty, the fracture in the vessel’s hull is considered to have originated from the bottom part of the vessel.
Hull strength and loads at the time of accident were assessed in order to investigate how the fracture occurred and progressed. Structural hull capacity was analyzed using non-linear finite element 3-hold modeling, and dynamic wave loads including whipping effects were also analyzed.

Weather, sea state and cargo loading condition data from the vessel’s previous voyages are being investigated to estimate the loads acting on the vessel. In addition, structural inspections were conducted on the sister vessels of the MOL Comfort.

During the inspections of the sister vessels, buckling type deformations measuring approximately 20mm in height were observed on the bottom shell plates in the vicinity of center line of midship area. However, it remains unclear at this stage as to whether this type of deformation could have served as a trigger for the casualty. Reinforcement work to increase the hull strength of the sister vessels is already being carried out as a preventative safety measure.

With cooperation from shipowners, structural investigations are also being carried out to determine whether similar deformations have occurred in large container vessels with designs differing from those of the MOL Comfort.

Numerical analyses of hull strength and applied loads continue to be conducted in order to develop a more detailed understanding of the casualty and establish countermeasures to prevent the occurrence of similar casualties in the future.

Safety Measures
Based on the preliminary findings noted above, the ClassNK Casualty Investigation Team has proposed the following safety measures be carried out on large container ships in order to prevent the occurrence of similar casualties.

  • It is recommended that crew inspect the midship section to the extent possible in order to determine whether deformations have occurred on the bottom shell plates. At the request of shipowners, ClassNK will dispatch qualified surveyors to attend such inspections free of charge.
  • If consecutive deformations in the transverse direction are observed on the bottom shell plates an occasional survey is recommended. ClassNK will dispatch qualified surveyors upon request.

The ClassNK Casualty Investigation Team will continue to work closely with the Committee on Large Container Ship Safety as it continues to investigate the MOL Comfort casualty and compile its final report on the incident.
 

Maritime Reporter September 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Statoil: New Oil in the Grane Area

Statoil has together with PL169 partners proved new oil resources in the D-structure in the vicinity of the Grane field in the North Sea.   Well 25/8-18 S, drilled by the rig Transocean Leader,

New Standard for LNG Cargo Containment Systems

Wilhelmsen Technical Solutions (WTS) said it has successfully completing the gas trial for the first LNG carrier built to a Boil Off Rate (BOR) of 0.08% per day.

Corvus Gains Support from WINN Initiative

Corvus Energy announced today the award of $1.3 million in repayable assistance from the Western Innovation (WINN) Initiative for its project to further develop the Corvus Energy Storage System.

Container Ships

Containerships: G6 Alliance Alters Routes on Seasonal Demand

Temporary suspension of Central China (CC2) Service / All ports covered by other G6 services   In response to seasonal changes in market demand, the members of

CMA CGM Acquires 7,000 Reefer Containers

The CMA CGM Group announced it has acquired more than 7,000 of last generation 40’ High Cube Reefer containers including 6,000 low consumption engines. The CMA

'New Tango' Brings More Post-Panamax Ships to Charleston

New service expands Port of Charleston's capacity to serve North-South trade The SC Ports Authority today received the first ship call of a new consolidated

Casualties

USCG Reopens Port Allen Post Hurricane Ana

The Coast Guard Captain of the Port reopened Port Allen in Kauai Monday morning after surveying crews deemed it  safe for transit. The maritime public is advised

Key to Somalia's Recovery

Piracy, terrorism and criminal activities originating in Somalia can only be addressed by creating a climate of security, engagement and empowerment that will encourage home grown businesses,

CEVA Airlifts Supplies to W. Africa for Ebola Response

CEVA Logistics - one of the world's leading supply chain management companies – airlifted  more than 70 tonnes  of urgent supplies to Monrovia, Liberia on October

News

USCG Reopens Port Allen Post Hurricane Ana

The Coast Guard Captain of the Port reopened Port Allen in Kauai Monday morning after surveying crews deemed it  safe for transit. The maritime public is advised

TRIYARDS Buys into Aluminium Shipbuilding Expertise

TRIYARDS Holdings Limited, an offshore vessel fabrication and engineering solutions provider to the oil and gas (O&G) industry, has added new capabilities, products

Singapore’s MPA Discuss LNG Bunkering

The Maritime and Port Authority of Singapore (MPA), Antwerp Port Authority, Port of Rotterdam and Port of Zeebrugge participated in a Liquefied Natural Gas (LNG)

Maritime Safety

USCG Reopens Port Allen Post Hurricane Ana

The Coast Guard Captain of the Port reopened Port Allen in Kauai Monday morning after surveying crews deemed it  safe for transit. The maritime public is advised

Mitsubishi Super Skiving System

Mitsubishi Heavy Industries, Ltd. (MHI) has completed development of the "Mitsubishi Super Skiving System" for machining internal gears with high speed and outstanding precision.

Key to Somalia's Recovery

Piracy, terrorism and criminal activities originating in Somalia can only be addressed by creating a climate of security, engagement and empowerment that will encourage home grown businesses,

Classification Societies

ClassNK's Guidelines for Exhaust Gas Cleaning Systems

Leading classification society ClassNK announced that it has released Guidelines for Exhaust Gas Cleaning Systems. These guidelines cover class safety requirements

Denmark Lobbies for IMO Top Job

Denmark and its maritime industry are lobbying to get the top position at the International Maritime Organization, a United Nations body that wields great influence

DNV GL Forms Americas LNG Solutions Group

To meet the rapidly growing demand for a wide variety of LNG related services, DNV GL has established a group of LNG experts in North America. In addition to deep LNG expertise,

 
 
Maritime Contracts Maritime Standards Naval Architecture Navigation Pipelines Port Authority Salvage Ship Electronics Ship Repair Sonar
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2211 sec (5 req/sec)