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

Technology

Resolve Maritime Academy's New Wet Trainer Facility

Resolve Maritime Academy says it has started on the construction of a new, two-story wet trainer, larger and more expansive than its original, the L/V Gray Manatee.

Globecomm to Provide VSAT for PBJV Barge

Purpose-built accommodation and pipe-lay barge on charter to Petronas equipped with VSAT and L-Band services. Globecomm Maritime has been awarded a contract

LiveCom Selects iDirect Evolution to Enable Global Expansion

iDirect Asia Pte Ltd today announced that LiveCom Limited (“LiveCom”), a Hong Kong based ISP, has selected Evolution as the platform to help enterprise and government

Container Ships

DMR Publish Latest Container Census Report

Drewry Maritime Research (DMR) says it has just published it's latest Container Census report, providing a wealth of information on the container equipment market.

Höegh LNG Partners Launch IPO

Höegh LNG Partners LP ("Partnership"), a Marshall Islands limited partnership formed by Höegh LNG Holdings Ltd. ("Company"), announced today that it has commenced an initial public offering of 9,

XtendFRESH Now Available from Carrier Transicold

The XtendFRESH atmosphere control system, which preserves quality and extends shipping distances for perishables shipped in refrigerated containers, is now available from Carrier Transicold.

Casualties

Pumps Reach Sinking Shrimper Just in Time

A commercial fishing vessel from Brownsville is slowly making its way back to port, thanks to some quick actions by its crew and Coast Guard units, informs the US Coastguard,

Company Fined for Oil Spill Near Anacortes

Ecology issues $112,500 penalty for sunken vessel.   American Gold Seafoods faces a $112,500 penalty for an oil spill caused by the accidental sinking of its vessel,

Grounded Freighter Refloated in Lake St. Clair

The Federal Rideau, a 656-foot freighter that had been hard aground in the downbound shipping channel of Lake St. Clair since early Sunday morning, was refloated

News

HHLA Creates Fifty Jobs at Container Terminal Burchardkai

Hamburger Hafen und Logistik AG (HHLA) needs fifty other commercial employee for a container terminal Burchardkai (CTB). So she continues her already started

Condition-Based Engine Monitoring Systems for MAN B&W Engines

ClassNK to participate in a joint project together with Mitsui Engineering & Shipbuilding Co., Ltd. and MES Technoservice Co., Ltd. to support research into

Höegh LNG Partners Launch IPO

Höegh LNG Partners LP ("Partnership"), a Marshall Islands limited partnership formed by Höegh LNG Holdings Ltd. ("Company"), announced today that it has commenced an initial public offering of 9,

Maritime Safety

US Coast Guard Travelling Inspectors' Centenary

July 2014 marked the 100th anniversary of the traveling inspection staff, originally created under the Steamboat Inspection Service. These travelers are highly

Pumps Reach Sinking Shrimper Just in Time

A commercial fishing vessel from Brownsville is slowly making its way back to port, thanks to some quick actions by its crew and Coast Guard units, informs the US Coastguard,

Resolve Maritime Academy's New Wet Trainer Facility

Resolve Maritime Academy says it has started on the construction of a new, two-story wet trainer, larger and more expansive than its original, the L/V Gray Manatee.

Classification Societies

Regulations Threaten Superyacht Innovation

To increase innovation within the superyacht industry, designers need to work with flag states, classification societies and naval architects to ensure regulations are workable, as said by experts.

ABS to Class the World's First CNG Ship

ABS announced it has been chosen to class the world's first compressed natural gas (CNG) carrier ordered by Pelayaran Bahtera Adhiguna, a subsidiary of Indonesia's

Interview: Roberto Cazzulo Talks Class Trends

As Roberto P. Cazzulo, RINA, steps down as the Chairman of the IACS Council, Maritime Reporter caught up with him to discuss the current state and future direction of global class.

 
 
Maritime Careers / Shipboard Positions Naval Architecture Navigation Offshore Oil Pipelines Pod Propulsion Port Authority Salvage Ship Simulators Shipbuilding / Vessel Construction
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: 0.1284 sec (8 req/sec)