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

Technology

Deep Sea Supply takes Delivery of 'Sea Triumph'

The Deep Sea Supply  took delivery of the newbuilding Platform Supply Vessel 'Sea Triumph'  on Thursday 18 September.  The vessels 'Sea Triumph' is a STX 05-L

Keystone XL Costs to Nearly Double - TransCanada

The total cost of TransCanada Corp's controversial Keystone XL pipeline is likely to nearly double following six years of regulatory delays, a company spokesman said on Friday.

Lilaas Engages Imtra for N. American Distribution

Strong prospects in the North American marine equipment market have triggered a new importation and distribution agreement between control specialist Lilaas

Container Ships

Chevron To Find Buyers for Hawaiian Refinery

Chevron Corp has hired an investment bank to identify potential buyers of its 54,000 barrel-a-day refinery in Kapolei on the Hawaiian island of Oahu, a company official said.

South Carolina Ports Container Volume Up by 13%

SC Ports Authority reported container volumes up 13 percent fiscal year to date, a strong start to the first two months of the fiscal calendar. The SCPA handled 163,

Global Ship Lease to Acquire Containership

Global Ship Lease, Inc. has  announced  that it has agreed to acquire a 8,063 TEU containership from a leading container liner company for a purchase price of $55 million.

Casualties

USCG in Search of Missing Man in Lake Michigan

The Coast Guard is searching for a man who went missing on Lake Michigan, Tuesday. Missing is 48-year-old Joseph Kiehm from Milwaukee. Kiehm was last seen aboard his 26-foot white sailboat,

S. Korea Navy Chief Quizzed About Salvage Ship Absence

The state audit agency has interrogated the chief of the Navy over a faulty Navy salvage ship that failed to participate in the national rescue operation for the

Arctic Wreck Found after 169 Years

After more than 169 years, Canadian researchers discovered one of the two ships from the doomed Arctic expedition of Sir John Franklin, cracking one of the largest mysteries in sea exploration.

News

Deep Sea Supply takes Delivery of 'Sea Triumph'

The Deep Sea Supply  took delivery of the newbuilding Platform Supply Vessel 'Sea Triumph'  on Thursday 18 September.  The vessels 'Sea Triumph' is a STX 05-L

Tropical Storm Polo Threatens Battered Mexican Resort of Los Cabos

Tropical storm Polo barreled nearer on Friday to the Mexican Pacific resort of Los Cabos where thousands of troops were restoring order following widespread

Keystone XL Costs to Nearly Double - TransCanada

The total cost of TransCanada Corp's controversial Keystone XL pipeline is likely to nearly double following six years of regulatory delays, a company spokesman said on Friday.

Maritime Safety

Rotterdam Integrates Safety Research with LNG Training Facility

The Dutch company Falck Risc is becoming the number one expert on LNG safety in Europe. Together with the Unified Fire Department, Falck Risc will draw up guidelines

Seagull Maritime Response on Safety, Security

Key areas of concern for seafarer safety and security in both marine and offshore operations have triggered the release of six new and one supplementary titles

Exxon: U.S. to Allow Wind Down Ops in Russian Arctic

U.S. oil major Exxon Mobil said on Friday the U.S. Treasury Department granted it a license to wind down operations on a drilling well in the Kara Sea in the Russian Arctic.

Classification Societies

MAN-Powered Cargo Vessel Meets Tier III

Classification society awards SCR system emissions certificate. MAN Diesel & Turbo has been awarded a Tier III - compatibility certificate by the DNV- GL classification

ClassNK Issues New Rules for Inland Waterway Ships

Leading classification society ClassNK has released new technical rules and guidance for the survey and construction of inland waterway ships. As a result

BSH Certifies SeaCURE for Wide Range of Flow Rates

The Federal Maritime and Hydrographic Agency of Germany (Bundesamt für Seeschifffahrt und Hydrographie- BSH), which previously granted the Evoqua SeaCURE Ballast

 
 
Maritime Careers / Shipboard Positions Maritime Security Offshore Oil Pipelines Pod Propulsion Ship Electronics Ship Repair 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: 0.2399 sec (4 req/sec)