Investigators talk about accidents 丨 Improper opening of the cabin trigger a ship accident loss expanded

Safe Production

Heavy/Yu/Tai/Mountain

Investigator talked about the accident

Improper opening of the cabin causes the loss of ship accidents to expand

The ship can still maintain the ability of sinking and overturning in the case of a cabin or several cabins in the case of water, calling the ship's anti -sinking nature. In order to ensure anti -sinking, in addition to sufficient reserve buoyancy, the ship is generally effective measures to set up double -layer bottoms and a certain amount of water tightly. Once a collision or stranding causes a certain cabin to damage the water, the water tight cabin can limit the water to the small range as much as possible to prevent the water from spreading to other cabins, thereby ensuring the floating and stability of the ship after damage. Make the ship a certain incorrectness and create favorable conditions for the leakage and rescue. The more the ship isolates the cabin, the better the anti -sinking resistance of the ship, but the higher the construction and maintenance cost of the ship. Different navigation areas and different types of ships are different from sinking performance.

Some small ships are convenient for people to pass the people, open the holes on the partition of the cabin, and have not been closed for a long time, so that each dry partition cabin is in a state of connecting each other, and even on the shelter of the cargo cabin to facilitate the personnel on the cargo cabin. Walking back and forth, cargo clearance, etc. This will reduce the anti -sinking performance of the ship, especially when the ship's traffic accident is damaged in water, which can easily lead to the spread of the water inlet to the multi -cabin, which may cause the ship to sink.

Typical Case

one

Briefing of accidents

Traffic Safety

At about 2100:00 on June 17, 2019, the "XXX" wheel of the bulk cargo ship (total ton 7024, total length of 126 meters, host power 1470kW) southeast of the southeast of Pengdao The shell of the "XXX" wheels is damaged, the ship is in water, and it is rushed to the beach on Dongshan Island.

two

The process of watery and rescue assistance of the ship

Timeline

At about 2100 on the 17th

The wheel collisted with other ships, the shell board on the dry partition of the third cargo cabin was damaged. Go to the direction of Dongshan and look for the nearby coast.

There are people's holes between the dry partitions, the human holes are not closed, and the seawater will be connected to each other. After the seawater enters the third cargo cabin side side of the dry partition cabin, the water is taken forward along the back of the dry partition.

At about 0200 on the 18th

The seawater enters the dry partition cabin in front of the cargo cabin from the back, and the left leaning at the same time.

At about 0300

The seawater began to spread along the dry partition in front of the cargo cabin. The ship also began to slowly return from the left leaning, and leaned slightly.

At about 0652

The round reported to the search and rescue center. Search and Rescue Center organization for assistance.

At about 0910

The wheel arrived in the East Mountains and rushed into the beach, and the boat was sitting on the bottom. At this time, it was two hours after the low tide.

At about 1,000

As the tide rises, the seawater is flooded with the main deck in front.

At about 1255

The height of the seawater exceeded the right side of the first cargo cabin, and entered the first cargo cabin. At this time, the tide was close to the climax. Because there was a passage between the shots between the cargo cabin, the seawater flowed into the first cargo cabin. Second cargo cabin.

At about 1315

Search and rescue China and the West coordinating the pollution company began to refute the fuel of the round, and set up a fence in the fence

At about 1515

The fuel turning ends.

At about 1550

The barge and catching boats are in place, preparing to remove the goods on board.

At about 1635

The second cargo cabin water is full. The opening of the seawater slowly penetrates into the third cargo cabin through the opening of the cargo cabin. At this time, it is in the tide. The ship has stopped the water. Except for the raised part of the tail, the other main deck has all been drowned by the seawater.

At about 0100 on the 19th

Some goods were removed and the wheels were shallow.

three

The main cause of losses after the accident

Traffic Safety

Cabling layout schematic diagram

After the collision accident in this wheel, the scope of the ship's water intake can be controlled at the dry partition of the third cargo cabin. After investigation, due to the following reasons, the loss of the ship accident was further expanded:

1. The human holes between the dry parts on the side of the cargo cabin and the people's holes between the dry partitions in front of the cargo cabin are not closed, and each dry partition is connected to each other. From the back to the front side, enter the third, second, first dry partition, the ship's dry partition cabin, the first, second, and third dry partition cabins, increase the amount of water in the ship, resulting in the increase in the water of the ship. Big, seawater flooded the front cabin of the first cargo cabin.

2. The wheels are set up privately between the shots of the cargo cabin. After the seawater drowns into the first cargo cabin, the opening flows into the second cargo cabin along the opening. The third cargo compartment will increase the total weight of the ship. All were drowned by the sea.

Four

Safety management suggestions for maritime investigators

1. Suggestions on crew

Captain's annual maintenance plan of the deck of the deck, inspect and maintain the pressure of the carrier and dry parts, mainly includes: open the human hole sealing board between the cabin to check whether the thread is corroded, the sealing ring is aging, the water is dense, and the water is densely water. Whether sexual sex is intact, water tight experiments if necessary, and re -installation and closed after checking; routinely check the closed state of the people's holes in the cabinet every quarter. There is a dry cabin with the door on the front. The closed state of the human hole in the cabin should be checked once a month; the locking state of the cabin door is checked before each voyage. During the voyage, if the homework needs to be temporarily opened, the people's holes are temporarily opened, and multiple ones should be avoided at the same time, and they should be closed in time after the operation is completed. For maintenance projects that need shore -based support, applications should be made to the company in time to ensure that the anti -sinking performance of the ship does not decrease. 2. Suggestions to the shipping company

Shipping companies should indeed fulfill the responsibility of the main body of production safety, review the annual maintenance plan of the ship's formulation, check the ship on schedule, check the maintenance records, and check whether the ship will complete the inspection and maintenance work in accordance with the pre -set maintenance plan. Check the water tightness of the dry partition door, and check the human holes in the interval. When the conditions are limited, it can be reviewed through the form of remote videos/photos. It is urged to urge the crew to maintain maintenance and keep the people's holes of the dry partitioners in a normal closed state; prohibit privately setting up a pedestrian passage on the shot of the cargo cabin.

3. Suggestions on ship inspection agencies

It is recommended that ship inspection agencies strengthen the inspection of each cabin of the ship during regular inspections, especially the inspection of the opening of the cabin opening and the dry parts of the cabin. If the screw rust, the adhesive aging of the tank opening of the cabin, the aging of the adhesive bar, the corrosion of the cover, or even the loss of the cover, etc. If the water density function cannot be maintained, the ship should be required to correct it in time until the requirements are met; , Resolutely not pass the test.

4. Suggestions on the maritime department

When marine law enforcement officers carry out on -site supervision, the cargo compartment inspection should be strengthened. If major safety hazards such as the private channels of cargo cabin are found to be defective, they should immediately transfer to the ship security inspection and prohibit ships from leaving Hong Kong. At the same time, the ship is required to correct the defects. It can be opened after passing the inspection inspection. When conducting a safety inspection of the ship, the inspection of the opening of each cabin should be strengthened. If the device is obviously dense or windy and windy at the opening of the cabin opening, the ship should be required to correct it in a timely manner. Whether the human holes on the shot of the ship keep the parts are closed. If you find that you are in a state of opening, you should be required to correct it before sailing. If you close the human holes on the top of the car, if you cannot be closed, the ship shall be prohibited from leaving Hong Kong and requests it. The ship can be opened after rectification of related defects.

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