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

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.

Northrop Grumman Sponsors Maritime RobotX Challenge

Northrop Grumman Corporation is expanding its support for science, technology, engineering and math (STEM) education across the globe by sponsoring the Maritime RobotX Challenge in Singapore, Oct.

Container Ships

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

Video: E-Class Edith Mærsk on the Thames

The largest ship ever to enter the Thames arrived at DP World London Gateway, the U.K.’s new deepwater container port. The 397-meter-long, 56-meter-wide Edith Mærsk

News

Nordic American Offshore Declares Dividend

Nordic American Offshore Ltd. today announced that its board of directors has declared a dividend of $0.45 per common share for the third quarter 2014. This is the same as for the second quarter 2014.

Missouri River Basin is Booming

The U.S. Army Corps of Engineers Missouri River Basin Water Management Division is maintaining above normal releases at the four lower dams on the Missouri River.

Bollore Africa Logistics Sees Profit Plunge in H1

First half 2014 profit at shipping company Bollore Africa Logistics plunged to 5.89 billion CFA francs ($11.48 million) from 9.45 billion CFA francs in the same period last year,

Maritime Safety

Maritime Reporter @ 75: The Daily Cartoon

Maritime Reporter & Engineering News was founded by John J. O'Malley (1905-1980) in 1939, and today ranks as the world's largest audited trade publication in the world serving the maritime industry,

Cruise Ship Returns to Texas after Ebola Concern

The Carnival Magic cruise ship was en route back to the United States on Saturday with a passenger from Texas who might have handled specimens of the first Ebola

MEPC Approves Draft Polar Code

Draft Polar Code approved by IMO’s Marine Environment Protection Committee A key step on the way to a mandatory Polar Code for ships operating in Arctic and

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 Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Naval Architecture Pipelines Ship Electronics Ship Simulators Sonar Winch
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: 0.1377 sec (7 req/sec)