Application Of FSA To Ship Pilotage Safety Assessment

As a safety assessment method, FSA (Formal Safety Assessment) is developed recent dedicates. Compare with other risk assessment methods, the process of FSA is more formal and more reasonable. FSA is a process of identifying most possible failure events and their consequences, estimating them and finally evaluating them. The assessment conclusion is more credible. The FSA includes the following five processes: hazard identification, risk assessment, identification of risk control options, cost benefit assessment and recommendations.Ship pilotage is a systematic project. It involves various external and artificial factors. Any dangerous factors may cause huge losses. So it is of most importance to pilotage safety. It is necessary to operate an assessment to the ship pilotage.The paper introduces the development, features and the procedures of the FSA briefly. Risk assessment is of most importance of the five procedures. To assess the risk the paper studies two modals, which are the Risk Modal Based on Assets Vulnerability (RMBAV) and the Fault Tree Analysis (FTA) and analysis the cause of the pilot accident. Comparing with the two modals, the FTA can work out the influence of basic event to the top event according to the Probability Importance (PI) and Critical Importance (CI) and risk of the basic event, but it is very complicated to draw a fault tree and the probability or the frequency is needed to calculate the PI and the CI. If the sample space is small, the error between probability and the frequency will be very big and the result will be affected. While the probability is not used in RMBAV and the risk value of the dangerous factor is calculated by Threat, Vulnerability, the Importance of the Assets and the Probability. The result from the two modals is consistent which shows the practice of the RMBAV in pilotage risk assessment. Finally, the RMBAV can be applied to the analysis of single accident and a sample is used to approve it.At last the paper gives out the risk control options and recommendations which are very useful to the ship pilotage safety.