Muhammad Afif Ardani, 2018, NIT: 50135003.T, “ Analysis in Stern Tube Leak on MV. Oriental Mutiara”, Final Project, Teknika Study Program, Diploma IV Program, Merchant Marine Politechnic of Semarang, Supervisor I: Nasri, MT, Supervisor II: Adi Oktavianto, ST, MM.
Stern tube is a steel tube built into the ship’s structure for the purpose of supporting and enclosing the propulsion shafting where it pierces the hull of the ship. The stern tube system used is lubricating system with lubricating oil media and mounted pads that are made of babbit metal, also given rubber seals. Leakage of the stern tube will occur when the stern tube is abnormal.
The research method that the writer uses in the preparation of this thesis is SWOT method as data analysis technique to analyze the existing problem at stern tube, that is what factors causing leaks on stern tube aboard, impact resulting from leakage at stern tube and effort improves the leakage of the stern tube by systematically identifying various factors against strenghts, weaknesses, opportunities, and threats from the environment to formulate strategies will be taken.
Based on the results of research that has been done by the author on the ship can be concluded on the stern tube caused by damage experienced on the stern tube because of poor material quality. Then for the inconvenience for the company as well as for the ship, the strategy to fix the leakage of stern tube using SWOT analysis strategy that is defensive strategy that is in quadrant IV, there are two factors of effort to improve the stern tube according to the strategy formula that the company must take an active role in supporting the activity of docking repair the damaged seal stern tube.
