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Dragen och sänkt: En undersökning om orsaker till girting vid bogserbåtsoperationer
Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
Linnaeus University, Faculty of Technology, Kalmar Maritime Academy.
2015 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Down by the line : A study of the causes of girting (English)
Abstract [sv]

Uppsatsen undersöker orsaker till fenomenet girting, dvs olyckor där bogserbåtar dras ned och potentiellt kapsejsar vid bogsering av farkoster. Undersökningen utgår från 14 officiella haverirapporter om girtingsituationer världen över.  Med hjälp av modellen HFACS-MA kategoriseras olycksorsakerna i en orsakskedja för att utröna vilka kategorier som är mest frekvent förekommande i samtliga undersökta olyckor. Resultatet visar att dåligt förberedda bogseroperationer (med otillräcklig eller utebliven planering och riskbedömning), brister i organisationernas dokumentation (manualer, instruktioner och procedurer), samt bristande kommunikation mellan de inblandade parterna var de största faktorerna för girting. För att minska risken för girting har rekommendationer framtagits, som bl a innefattar vikten av att hålla dokumentation uppdaterad, hålla tydlig kommunikation mellan inblandade parter under bogseringsoperationer samt planera varje operation noggrant och ge alla inblandade möjlighet till återkoppling.

Abstract [en]

This essay studies the causes of girting, i.e. accidents where tugboats get pulled down and capsizes by the vessel it is towing. The study uses 14 official accident reports about girting accidents all over the world. The HFACS-MA model is used to categorize the causes of the accident into a causal chain, in order to find out which categories are most frequently present in the accident reports.  The result shows that poorly planned tow operations (with inadequate planning and/or risk assessment), deficiencies in the organization’s documentation (i.e. manuals, instructions and procedures), and poor communication between the involved parties were the most frequently found factors for girting. In order to reduce the risk of girting, recommendations have been made that includes the importance of keeping documents up to date, maintain clear communication between the parties involved during towing operations and to plan each operation thoroughly, giving everyone involved the opportunity for feedback regarding the plan.

Place, publisher, year, edition, pages
2015. , 74 p.
Keyword [en]
Girting, HFACS-MA, Tug boats, Accidents, Accident reports, causes
Keyword [sv]
Girting, HFACS-MA, bogserbåtar, olyckor, haverirapporter, orsaker
National Category
Other Engineering and Technologies not elsewhere specified
Identifiers
URN: urn:nbn:se:lnu:diva-43317OAI: oai:DiVA.org:lnu-43317DiVA: diva2:813091
Subject / course
Master Mariner
Educational program
Nautical Science Programme (4years) with onboard practical training placement, 180 credits
Supervisors
Examiners
Available from: 2015-05-21 Created: 2015-05-21 Last updated: 2015-05-21Bibliographically approved

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Dragen_och_saenkt(875 kB)220 downloads
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4e12d5fb18f41fd14e6e1553c7639a95931b75ae310ff2ab6ca27863c3da048433efbccc69c9b09cdf090230aade3882ea5afb6b1c40cd713f63092315d272ea
Type fulltextMimetype application/pdf

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CiteExportLink to record
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Citation style
  • apa
  • ieee
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Output format
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