Lloyd's Register Safety Alert

press release
Wednesday, February 22, 2012

Safety alert: Steering gear control wheel potentiometer failure resulting in vessel grounding.

 

  • Applicabilty: All shipowners and operators.
     

Following an incident involving loss of steering on a Marshall Islands registered bulk carrier, the Transportation Safety Board (TSB) of Canada issued a Marine Safety Advisory Letter No. 07/11. The information obtained indicated the ship experienced a loss of steering control when the No.2 servomotor’s wheel potentiometer failed while the rudder was at 10 degrees to starboard. The ship then ran aground.
 

It was established that the control system manufacturer had published a service document recommending potentiometers to be replaced at five-yearly intervals on their similarly equipped steering consoles. This documentation was not found on board nor was the information present in the ship’s steering gear manual. There was also no document to indicate that the potentiometer had been replaced since the ship was constructed in 1986.
 

Lloyds Register has now conducted a search of its defect database and identified a number of similar failures in the last five years. These failures have occurred on various makes of steering gears with the majority being after more than five years of service. It is strongly recommended that owners and operators ensure all service bulletins are maintained up to date with a copy retained on board, and that necessary maintenance procedures are adhered to on steering control potentiometers.

Maritime Reporter March 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Ship Repair & Conversion

Austal Graduates 48 4-Yr Apprentices

Austal USA combined two classes to graduate a total of 48 members of Austal’s cutting-edge four-year apprenticeship program yesterday at a formal ceremony held at the Arthur R.

BAE Systems to Expand San Diego Shipyard

BAE Systems announced it will invest approximately $100 million to expand drydocking capabilities at its San Diego shipyard.   The investment, which will include

Washington State Ferry Tacoma Returns to Service

Washington State Ferry M/V Tacoma will return to work on the Seattle/Bainbridge Island route starting March 28 after suffering electrical damage last summer.   The

Maritime Safety

Is China Building a Naval Base in Africa?

Recently, The Namibian reported the existence of a "confidential letter from Namibia's ambassador to China, Ringo Abed, to Namibia's foreign minister stating that

USCG Flush Ice down River Systems to Facilitate Shipping

The Coast Guard cutter fleet is flushing ice through the Great Lakes river systems to prevent ice jams and facilitate commercial shipping as the shipping season

Mediterranean Rescue Operations Strain Shipping

The Wall Street Journal ran a story yesterday describing how the increasing number of seaborne migrants making the journey from Africa to Europe has not only

Classification Societies

DNV GL - Maritime CEO Addresses Cybersecurity at CMA 2015

“Ships and offshore structures are becoming more and more interconnected,” said Tor Svensen, CEO DNV GL - Maritime, when taking the stage at this year’s CMA

Lloyd's Launches 2015 Container Certification Scheme

Lloyd’s Register launched its 2015 Container Certification Scheme today to give a clear and concise set of rules to ensure offshore and onshore containers are safe and certified correctly.

Attracting, Retaining Talent - IRS Shows the Way Forward

At a time when the global shipping industry is going through an unprecedented and extended downturn, the overriding challenge is to stay afloat and wait for the tide to turn.

Surveyors

TDDCL Seeks Input for New Repair Yard

Trinidad Dry Dock Company to develop new ship repair yard at Port of Spain; company requests Expressions of Interest for Environmental Impact Assessment and Geotechnical

Virtual Aids to Navigation Mark Research Equipment

Vesper Marine will provide its Virtual Aid to Navigation technology to the French company CGG, a  geoscience company that provides geological and geophysical survey

US-built Survey Vessel Delivered to Fugro

Newbuild shallow draft survey vessel Fugro Americas was delivered to Fugro on March 18, 2015. Built by Thoma-Sea Marine Constructors in Louisiana, with supervision by Fugro Marine Services Custom,

 
 
Maritime Security Maritime Standards Naval Architecture Navigation Pipelines Port Authority Ship Simulators Shipbuilding / Vessel Construction 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: 0.1211 sec (8 req/sec)