Maritime Studies. Man Overboard. Denize Adam Düşmesi. Maritime Accident Investigation Reports. Maritime Research. IMO GISIS. Database. Veritabanı Oluşturulması. EU Project. TUBITAK. ITU Maritime Faculty. İTÜ Denizcilik Fakültesi. Maritime Accident Investigation, Casualty Investigation Code, Man Over Board (MOB), Lessons Learned, Database, Data Format, Report Forms.

Maritime Investigation Reports Involving Man-Over-Board (MOB) Casualties: A Methodology for Evaluation Process

Turkish Journal of Maritime and Marine Sciences, Vol: 5 No: 2 (2019) 141-170.


Orhan Gönel and İsmail Çiçek


Flag states must issue their maritime investigation reports in accordance with the International Maritime Organization (IMO) circulars with the inclusion of ‘lessons learned’ items from recorded accidents or incidents. To identify the root cause of an event, there must be enough detail of information about the investigated event presented in reports. The information included in reports may help identifying the procedural deficiencies or technical challenges. Considering the Man-Over- Board (MOB) events as a sub group of maritime accident  nvestigations, authors systematically reviewed over 100 reports containing MOB events in this study.

In this study, reports are reviewed and major differences in formats as well as level and type of information are recorded. A systematic methodology for reviewing and reporting the overall information retrieved from maritime accident reports is presented. To cover all information from reviewed reports, 113 information items are identified. An associated standard form is developed for use in extracting information from all investigation reports. Enabling the data collected systematically from reports, issued by the world maritime accident reporting states and agencies, and successively populated into a database for overall analysis, this form is called “Maritime MOB Events Investigation Form (MEI Form)”. This paper presents the content of the MEI Form and demonstrates the methodology of use for retrieving, formatting and analyzing the information from the MOB investigation reports using case examples.

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Maritime Accident Investigation, Casualty Investigation Code, Man Over Board (MOB), Lessons Learned, Database, Data Format, Report Forms.


  • A Form was developed and proposed for use in accident investigations.
  • Using the form and entry into a database, maritime accident investigation data is digitized.
  • Statistical Data for MOB Events were obtained and presented.
  • results provide useful data for having lessons learned items.
  • Provides a methodology for root-cause of MOB events.
  • Lessons learnt process is automated.