※ This video is part of <Extreme Jobs - Ship Repair Shipyard Part 1-2> broadcast from October 21 to 22, 2009. The invisible force that creates the world's best shipbuilding power, the ship repair shipyard. Here, there are ship repairmen who extend the life of ships and are responsible for safe operation. Eight repair companies and 100 people were mobilized to repair the 10,000-ton Dongbang Ace. From the work of salvaging the ship as big as a house to the dock, to the painting of the hull's exterior that lasts for over a week without rest, to the cleaning work of wiping off oil stains in a space so narrow that it is difficult to move one's body, they are constantly working without rest. Let's meet these people who uphold the value of sweat even in the midst of hard labor. ■ Continuous tension, salvage the 10,000-ton ship! A repair shipyard in Busan. The 10,000-ton Dongbang Ace, which is 120 meters long and 26 meters wide, came here for a regular inspection. According to the current institutional inspection system, ships undergo a regular inspection every five years. For the regular inspection and repair of one ship, 8 repair companies and 100 repairmen were mobilized. In order to repair the ship, the repair ship is lifted to the dock of the shipyard. The width of the dock is 42m, and the width of the Dongbangho is 26m, so even docking it is difficult because the hull is wide. It takes 1 hour and 30 minutes just to lift it. It is a dangerous task where you cannot relax for even a moment because a collision between the repair ship and the dock can lead to a major accident. ■ Extreme cleaning work in a narrow space The repair ship that has been sailing the sea for 5 long years finally removes the dirt attached to the outer plating of the hull. The clams attached to the outer plating of the hull reduce the ship's speed by 20%, so they must be cleaned. The outer plating of the hull is washed with high-pressure water, and the clams that are not removed during this process must be scraped off by hand. The work in a cramped space where you cannot even move your body is so hard that it is difficult to even breathe. Cleaning is done in all parts of the ship. The most difficult task is cleaning the anchor storage area. It is a narrow space of 26㎡ and requires no time to straighten one's back. The work of breaking up hardened foreign substances and wiping out seawater once a year is an extreme work site where the indoor temperature reaches 40 degrees Celsius and sweat is made even when standing still. ■ War with paint powder! Painting work Painting a ship is the most time-consuming work among repair work. Ships are painted with anti-rust paint to prevent rust and anti-fouling paint to prevent contamination. Painting work must be repeated at least four times to prevent corrosion caused by seawater. This painting work takes over a week and requires the painter's meticulousness and patience. Working on a 20m high platform is always tense. Since it is a work that requires full concentration, there is a high chance that one will lose focus for a moment and fail to take responsibility for one's own safety. It is an extremely dangerous job where workers are always exposed to the risk of falling due to the paint dust flying in all directions during work, making it difficult to secure visibility. ■ The heart of the ship! Engine repair. The lifespan of a ship is up to 40 years. In order to sail safely and securely, regular repairs and inspections of the ship are essential. The repair ship that recently arrived is also repairing everything from large machines to small parts, and the most important of these is the engine. Since it is called the heart of the ship, each and every part must be checked. As a result, the work is carried out busily day and night. The work that continues until late at night seems to end, and this time, water starts leaking somewhere. The engine team members do not hesitate to work all night to solve the problem. As they inspect the machinery here and there to find the cause, their entire bodies are already covered in sweat and oil. After a long struggle, they discovered that the cause was a small part inside the engine room. ■ Check the life raft, the lifeline of the crew! One of the most important tasks is checking the safety equipment of the ship! Starting with arranging the fire extinguishers according to the drawing and checking the fire extinguishing facilities, it is an important task that saves lives. In particular, a 20-person life raft has 27 relief items, including food, drinking water, and signal flares, that can last for 3 days, and checking them one by one is essential. The life raft inspection worker leaves a meaningful comment, saying, “It is our reward that this life raft is not being used.” ■ After an 8-day repair journey, it sets sail! The Touhou Ace is one day away from setting sail after a long painting job. The night before setting sail, all the w