船舶燃油泄漏事件调查报告 - 检验人员现场调查发现 - 常规

Upon receiving the inspection commission, our inspectors immediately rushed to the dock and boarded the mentioned vessel at around 2110 that evening. After boarding, we first spoke to the crew and dock personnel to understand the details of the accident, and then proceeded to inspect the condition of the ship and cargo in the hold. We found the following:

According to the dock personnel, the accident occurred at around 1643 this afternoon, and their surveillance video recorded the process of the incident. The dock claimed that the accident was caused by the grab colliding with the sloping plate of the No. 2S fuel tank. However, the dock personnel refused to provide us with the video. The dock stated that about 1,000 tons of cargo had been unloaded from hold No. 5 at the time of the incident, leaving approximately 9,800 tons remaining. All contaminated cargo has not been unloaded from the ship.
The dock personnel verbally acknowledged their responsibility but refused to sign the stevedore damage report and LOP (Letter of Protest) from the ship. The dock has also not reported the incident to the MSA (Maritime Safety Administration) and their liability insurance company.
According to the crew, the vessel berthed at S5 berth at 1212 today and started unloading at 1525. Upon noticing the fuel leakage, the crew immediately adjusted the trim of the vessel. As the damage was located at the left rear of the No. 2S fuel tank, the crew adjusted the trim to tilt the ship as much as possible towards the right bow. They also started the oil transfer pump to transfer the fuel from the No. 2S tank to the No. 3P tank. The leakage eventually stopped at 1740. The captain estimated the amount of leakage to be approximately 100 cubic meters. During this period, refueling operations were carried out, with approximately 200 tons of fuel being added to the No. 1S tank. The final quantity of fuel added has not yet been determined as it is currently being measured.
When we arrived at the scene, the contaminated grab had already been moved to the shore. The surface of the grab was covered in fuel. The dock personnel claimed that the collision occurred at the top beam of the grab, but due to its position, we were unable to see any traces of the collision.
No pollution was observed on the sea surface.
We entered the hold to survey the damaged areas of the ship and the extent of cargo contamination. We found a approximately 150mm hole at the junction of the right side hatch coaming and the sloping plate of hold No. 5. There were obvious signs of leakage nearby. The cargo directly below the hole was contaminated with fuel, and there were grooves formed on the surface of the cargo due to liquid scouring. The fuel had been absorbed by the cargo, and no flowing fuel was observed at the scene. A rough estimate suggests that the affected surface area is about 30 square meters. The quantity of affected cargo at the bottom cannot be estimated at the moment.
Regarding the repair of the hull damage, the dock has started consulting repair companies. Due to the damage being located in the fuel tank, cleaning and a gas-free test will be required before the replacement and repair of the plates can be carried out. The repair is expected to take one week.
As for the handling of the cargo, the dock personnel stated that they would like to unload the cargo to the shore first and then arrange for personnel to board and repair the damaged areas of the ship. Currently, the dock has not provided a specific plan for the disposal of the contaminated cargo. Considering the possibility of further spreading of fuel at the bottom, we recommend unloading the unaffected cargo from the ship as soon as possible. To prevent mixed unloading of the cargo, we suggest sending someone to supervise the unloading operations. For the affected cargo, we recommend the dock to prepare feasible plans to prevent secondary pollution accidents.

We will continue to stay on board to assist the captain in handling the accident and collect relevant documents for defense purposes. We will closely monitor the progress of the incident and report in a timely manner. If there are further instructions, please feel free to contact us.