Winch Malfunction Leaves Parasailors aloft for Three Hours

Posted by Michelle Howard
Monday, May 12, 2014

Two passengers were successfully launched from a parasail vessel for a ride aloft. As they were being winched in the winds picked up, and the parasail towline winch became inoperable and 800 feet of towline payed out stranding the passengers aloft. Additionally, the vessel was unable to make way through the water while battling rough seas and the strong winds, the U.S. Coast Guard said in a safety alert derived from a recent parasail casualty investigation.

The cause of the winch malfunction was due to overheating of the hydraulic power system which occurred because of an inadequate oil cooling system (through hull fittings / scoop type system) that relied solely on the vessel's movement through the water. When the vessel's movement was overcome and stalled by the wind acting against the parasail and the waves, there was no water circulation and thus no resultant cooling of the hydraulic oil. Since there was no fail safe braking system, the towline payed out when the hydraulic motor could no longer develop power. Three hours passed before the winds subsided enough to allow forward movement of the vessel, cooling off of the oil, and restoring the system to operation.

A series of parasail incidents resulting in fatalities and injuries have occurred over the last few years. Since 2006, there have been 11 deaths and 52 injuries as a result of parasailing activities. There have been several common factors in all of these incidents that are unique to parasailing.

This event was fortunate in that the parasail towline did not break and there were no fatalities or injuries, the USCG said, but nevertheless, to prevent similar occurrences, the Coast Guard strongly recommends that insurers, owners and operators of parasail vessels:
Ensure their vessel’s parasail winch hydraulic oil cooling systems are not dependent on forward movement of the vessel. If necessary, have the system modified by a parasail vessel professional.
Owners of parasail vessels which do have pressurized hydraulic oil cooling systems should ensure that their systems are properly fitted with inlet strainers on the sea water supply and that the rest of the system, pumps, motors, controls, oil filters, etc. are properly maintained at the proper frequency.
Review the USCG’s “Know Your Ropes” safety alert

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

News

USCG Cutter Eagle to Open for Tours in Yorktown

Coast Guard Cutter Eagle, America's tall ship and seagoing classroom for future officers in training, is scheduled to be open for tours Saturday at Coast Guard Training Center Yorktown.

30 Rosneft Subsidiaries in All-Russian Environmental Cleanup Day

Thirty Rosneft subsidiaries in most of the regions of the Company presence, from Sakhalin in the east to the Arkhangelsk Region in the west, took part in the

Newport International Boat Show Highlights

Newport Exhibition Group, owners and producers of the Newport International Boat Show, announced today activities and amenities for those planning to attend its 44th boat show season,

Coast Guard

USCG Cutter Eagle to Open for Tours in Yorktown

Coast Guard Cutter Eagle, America's tall ship and seagoing classroom for future officers in training, is scheduled to be open for tours Saturday at Coast Guard Training Center Yorktown.

Ballast Water Leadership

Admiral Paul Zukunft, the new U.S. Coast Guard Commandant, could fill the BWT leadership void. Global efforts to combat the spread of invasive species in ballast

USCG Medevacs Mariner in Port Alexander, Alaska

The Coast Guard medevaced an 87-year-old female reportedly suffering from complications associated with a lower back injury aboard the fishing vessel Annie B in Port Alexander, Sunday evening.

Maritime Safety

MNZ & AMSA Award McMurdo COSPAS-SARSAT Contract

McMurdo Group’s Techno-Sciences Inc. says it has been chosen by the Australia Maritime Safety Authority (AMSA) and Maritime New Zealand (MNZ) to deploy their next-generation

Raytheon Anschütz Enhance Bridge INS

German navigation system manufacturer Raytheon Anschütz says it has launched a new Synapsis software release and hardware infrastructure, which will further enhance

DNV GL Approves Permanent Underwater Wet Welding Repairs

DNV GL and Subsea Global Solutions LLC. are proud to announce that they have completed an extensive joint research and development program, that will allow permanent

Yachts

Newport International Boat Show Highlights

Newport Exhibition Group, owners and producers of the Newport International Boat Show, announced today activities and amenities for those planning to attend its 44th boat show season,

STS Young Endeavour Prepares for World Voyage

The Royal Australian Navy operated Sail Training Ship, Young Endeavour, is undergoing maintenance work in preparation for a 12-month world circumnavigation. It

New Superyacht ROCKIT.IT Launched by Feadship

Feadship says it has launched the outstanding 60.35-metre motoryacht ROCK.IT. Created for an experienced owner who has chartered Feadships and appreciated the essence of the brand,

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Navigation Offshore Oil Port Authority Ship Repair 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: 0.1839 sec (5 req/sec)